Table of Contents
- EMC Information
- User Information
- Package Contents
- Contents
- About this Manual
- Conventions
- Product Information
- Chapter 1 Introduction
- Chapter 2 Hardware Setup
- Chapter 3 Basic Operation
- Chapter 4 Hotkey Operation
- Port Switching
- Hotkey Setting Mode (HSM)
- Invoking HSM
- Alternate HSM Invocation Keys
- Alternate Port Switching Keys
- Keyboard Operating Platform
- List Switch Settings
- USB Reset
- Keyboard Language
- Buzzer Control
- Hotkey Port Switching
- Firmware Upgrade Mode
- Restore Default Settings
- Power on Detection
- Alternative Manual Port Selection Settings
- Keyboard Emulation Control
- Mouse Emulation Control
- Mouse Port Switching
- N-Key Rollover Keyboard Supporting Function
- HSM Summary Table
- Chapter 5 Keyboard Emulation
- Chapter 6 RS-232 Operation
- Chapter 7 The Firmware Upgrade Utility
- Appendix
ATEN CS1844-AT-U User Manual
Displayed below is the user manual for CS1844-AT-U by ATEN which is a product in the KVM Switches category. This manual has pages.
Related Manuals
CS1842 / CS1844
2/4-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
User Manual
www.aten.com
CS1842 / CS1844 User Manual
ii
EMC Information
FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE
STATEMENT: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
The device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority to operate this
equipment.
Warning: Operation of this equipment in a residential environment could
cause radio interference.
Achtung: Der Gebrauch dieses Geräts in Wohnumgebung kann
Funkstörungen verursachen.
KCC Statement
CS1842 / CS1844 User Manual
iii
RoHS
This product is RoHS compliant.
警告使用者：
此為甲類資訊技術設備，於居住環境中使用時，可能會造
成射頻擾動，在此種情況下，使用者會被要求採取某些適當的對策。
KVM+ 多電腦切換器類產品
製造商：
宏正自動科技股份有限公司
地址
：新北市汐止區大同路二段 125 號三樓
最大操作環境溫度 :
40ºC
最大額定電壓 :
DC 12V
設備名稱
Equipment
Name
2/4
埠
USB 3. 0 4K HDMI
雙螢
幕
KVMP
TM
多電腦切換器
型號
(型式)
Type designa-
tion (Type)
CS1842 / CS1844
單元
Unit
限用物質及其化學符號
Restricted substances and its chemical symbols
鉛
Lead
(Pb)
汞
Mercury
(Hg)
鎘
Cadmium
(Cd)
六價鉻
Hexavalent
chromium
(Cr
+6
)
多溴聯苯
Polybrominated
biphenyls
(PBB)
多溴二苯醚
Polybrominated
diphenyl ethers
(PBDE)
電纜線
Cable
－○ ○ ○ ○ ○
印刷電路部件
PCBA
－○ ○ ○ ○ ○
塑膠
/
其他部件
Plastic / Other
parts
○○ ○ ○ ○ ○
金屬部件
Metal
parts
－○ ○ ○ ○ ○
備考
1.
〝超出
0.1 wt %
〞及 〝超出
0.01 wt %
〞係指限用物質之百分比含量超出百分比含量基準值。
Note 1
：
“Exceeding 0.1 w t % ” and “excee ding 0.01 w t % ” in di cate that the percentage content of the r est ri ct ed
substance exceeds the reference percentage value of presence condition.
備考
2.
〝○〞係指該項限用物質之百分比含量未超出百分比含量基準值。
Note 2
：
“
○
” indicates t ha t the percentag e content of the restricted substance do es not exceed th e percentage of
reference value of presence.
備考
3.
〝－〞係指該項限用物質為排除項目。
Note 3
：
“−” indi cates that the rest ri cted substance corres ponds to the exemption .
CS1842 / CS1844 User Manual
iv
User Information
Online Registration
Be sure to register your product at our online support center:
Telephone Support
For telephone support, call this number:
User Notice
All information, documentation, and specifications contained in this manual
are subject to change without prior notification by the manufacturer. The
manufacturer makes no representations or warranties, either expressed or
implied, with respect to the contents hereof and specifically disclaims any
warranties as to merchantability or fitness for any particular purpose. Any of
the manufacturer's software described in this manual is sold or licensed as is.
Should the programs prove defective following their purchase, the buyer (and
not the manufacturer, its distributor, or its dealer), assumes the entire cost of all
necessary servicing, repair and any incidental or consequential damages
resulting from any defect in the software.
The manufacturer of this system is not responsible for any radio and/or TV
interference caused by unauthorized modifications to this device. It is the
responsibility of the user to correct such interference.
The manufacturer is not responsible for any damage incurred in the operation
of this system if the correct operational voltage setting was not selected prior
to operation. PLEASE VERIFY THAT THE VOLTAGE SETTING IS
CORRECT BEFORE USE.
International http://eservice.aten.com
International 886-2-8692-6959
China 86-400-810-0-810
Japan 81-3-5615-5811
Korea 82-2-467-6789
North America 1-888-999-ATEN ext 4988
1-949-428-1111
CS1842 / CS1844 User Manual
v
Package Contents
CS1842
1 CS1842 2-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
4 HDMI Cables
1
2 USB 3.0 Cables
2 Speaker Cables
2 Microphone Cables
1 Power Adapter
1 Remote Port Selector
1 User Instructions
2
CS1844
1 CS1844 4-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
8 HDMI Cables
1
4 USB 3.0 Cables
4 Speaker Cables
4 Microphone Cables
1 Power Adapter
1 Remote Port Selector
1 User Instructions
2
Check to make sure that all the components are present and that nothing was
damaged in shipping. If you encounter a problem, contact your dealer.
Read this manual thoroughly and follow the installation and operation
procedures carefully to prevent any damage to the unit, and/or any of the
devices connected to it.
Note: 1. 4K video resolution needs the high quality HDMI Cable.
2. Features may have been added to the CS1842 / CS1844 since this
manual was printed. Please visit our website to download the most
up-to-date version of the manual.
CS1842 / CS1844 User Manual
vi
Contents
EMC Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Online Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Telephone Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
User Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
CS1842 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
CS1844 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
1. Introduction
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Computers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CS1842 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CS1844 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CS1842 Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CS1844 Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LED Status Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Buzzer Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. Hardware Setup
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Quad-Display (DCC Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Quad-Display Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3. Basic Operation
Port Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Manual Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mouse Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hotkey Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Remote Port Selector Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Hot Plugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Powering Off and Restarting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CS1842 / CS1844 User Manual
vii
Port ID Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Alternative Manual Port Selection Settings . . . . . . . . . . . . . . . . . . . . . . . . 19
4. Hotkey Operation
Port Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Cycling Through the Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Going Directly to a Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Auto Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Hotkey Setting Mode (HSM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Invoking HSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Alternate HSM Invocation Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Alternate Port Switching Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Keyboard Operating Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
List Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
USB Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Keyboard Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Buzzer Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Hotkey Port Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Firmware Upgrade Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Restore Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Power on Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Alternative Manual Port Selection Settings . . . . . . . . . . . . . . . . . . . . . 28
Keyboard Emulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mouse Emulation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mouse Port Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
N-Key Rollover Keyboard Supporting Function. . . . . . . . . . . . . . . . . .29
HSM Summary Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5. Keyboard Emulation
Mac Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Sun Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6. RS-232 Operation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Hardware Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
RS-232 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RS-232 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Open / Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Switch Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Set Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Keyboard Language Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Hotkey Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Hotkey Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
USB Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
CS1842 / CS1844 User Manual
viii
Restore Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
KVM Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7. The Firmware Upgrade Utility
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Starting the Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Upgrade Succeeded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Upgrade Failed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
8. Appendix
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Optional Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Installation Kit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Hotkey Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
CS1842 / CS1844 User Manual
ix
About this Manual
This User Manual is provided to help you get the most from your CS1842 /
CS1844 unit. It covers all aspects of installation, configuration and operation.
An overview of the information found in the manual is provided below.
Chapter 1, Introduction, introduces you to the CS1842 / CS1844. Its
purpose, features and benefits are presented, and its front, side, and back panel
components are described.
Chapter 2, Hardware Setup, describes how to set up your installation. The
necessary steps are provided.
Chapter 3, Basic Operation, explains the fundamental concepts involved
in operating the CS1842 / CS1844.
Chapter 4, Hotkey Operation, details all of the concepts and procedures
involved in the Hotkey operation of your CS1842 / CS1844 installation.
Chapter 5, Keyboard Emulation, provides tables that list the PC to Mac
and PC to Sun keyboard emulation mappings.
Chapter 7, The Firmware Upgrade Utility, explains how to use the
CS1842 / CS1844's firmware with the latest available versions.
An Appendix, which provides specifications and other technical information
regarding the CS1842 / CS1844.
CS1842 / CS1844 User Manual
x
Conventions
This manual uses the following conventions:
Product Information
For information about all ATEN products and how they can help you connect
without limits, visit ATEN on the Web or contact an ATEN Authorized
Reseller. Visit ATEN on the Web for a list of locations and telephone numbers:
Monospaced Indicates text that you should key in.
[ ] Indicates keys you should press. For example, [Enter] means to
press the Enter key. If keys need to be chorded, they appear
together in the same bracket with a plus sign between them:
[Ctrl+Alt].
1. Numbered lists represent procedures with sequential steps.
♦Bullet lists provide information, but do not involve sequential steps.
→Indicates selecting the option (on a menu or dialog box, for
example), that comes next. For example, Start
→
Run means to
open the Start menu, and then select Run.
Indicates critical information.
International http://www.aten.com
1
Chapter 1
Introduction
Overview
The CS1842 / CS1844 2/4-Port USB 3.0 4K HDMI Dual Display KVMP™
Switch combines KVM switch with HDMI video interface and 2-port USB 3.1
Gen 1 hub. The HDMI interface provides 4K UHD @ 60 Hz and 4K DCI @
60Hz resolution that displays the most vivid high-definition images available
while producing premium sound for music, movies, and games.
The CS1842 / CS1844 respectively allows users to access two or four HDMI
computers from a single USB keyboard, USB mouse and two HDMI monitors.
The CS1842 / CS1844 also supports Quad Display by connecting two Dual
Display KVM switches. In addition to the front panel pushbuttons, hotkeys,
mouse port-switching, and remote port selector functionality, the CS1842 /
CS1844 offers serial commands to help switch ports and configure device
settings. A Power On Detection feature also ensures that if one computer is
powered off, the CS1842 / CS1844 will automatically switch ports to the next
powered-on computer.
With a built-in USB 3.1 Gen 1 hub, the CS1842 / CS1844 provides SuperSpeed
5 Gbps transfer rates to all connected USB peripherals. The unit’s independent
(asynchronous) switching feature, allows the KVM focus to be on one
computer while the USB peripheral focus is on another computer. This
eliminates the need to purchase a separate USB hub or stand-alone peripheral
sharer – such as a print server, modem splitter, etc.
Featuring an unbeatable combination of ultra high 4K resolutions, a next
generation USB 3.1 Gen 1 hub and enhanced, user-friendly operations, the
CS1842 / CS1844 delivers the latest innovations in desktop KVM switching
technology.
CS1842 / CS1844 User Manual
2
Features
One USB keyboard, mouse and two HDMI monitors control two/four
HDMI computers and share two USB peripherals
Supports Quad Display by connecting two Dual Display KVM switches
Video DynaSync™ – An exclusive ATEN technology that eliminates boot-
up display problems and optimizes the resolution when switching among
different sources
Supports superior video quality – 4K UHD (3840 x 2160 @ 60 Hz) and
4K DCI (4096 x 2160 @ 60Hz)
Computer selection via pushbuttons, hotkeys, mouse
1
, remote port
selector, and RS-232 commands
2
Built-in 2- Port USB 3.1 Gen 1 hub with SuperSpeed 5 Gbps data transfer
rates
Supports Console keyboard emulation/bypass feature
Supports Console mouse emulation/bypass feature
Independent switching of KVM, USB peripheral, and audio focus
3
Multilingual keyboard mapping - supports English, Japanese, French, and
German keyboards
HDMI compliant, HDCP 2.2 compliant
Supports HD Audio
3
Power on detection – if a computer is powered off, the CS1842 / CS1844
automatically switches to the next powered-on computer
Hot pluggable – add or remove computers without powering down the
switch
Sun and Mac keyboard support and emulation
4
Auto Scan Mode for monitoring all computers
Firmware upgradeable
Supports N-key Rollover
5
(NKRO) – Permits collision-free keying
Note: 1. Mouse port switching is only supported under mouse emulation
mode with a USB 3-button mouse wheel.
2. Slide the DCC switch to the s position to allow the KVM switch
to receive RS-232 commands via an RJ-45-to-DB-9 cable. Please
see Hardware Connection, page 35.
Chapter 1. Introduction
3
3. HD audio through HDMI channel cannot be switched
independently.
4. PC keyboard combinations emulate Mac keyboards. Mac
keyboards only work with their own operating system.
5. N-key Rollover supports up to 15 simultaneous keystrokes.
CS1842 / CS1844 User Manual
4
Requirements
Console
Two HDMI monitors capable of the highest possible resolution
A USB mouse
A USB keyboard
Microphone and speakers
Computers
The following equipment must be available on each computer:
Two HDMI ports
Four HDMI ports for Quad-Display (DCC mode)
A USB Type A port
Audio ports
Cables
To guarantee video quality, we recommend using only ATEN HDMI KVM
cables. Four (CS1842) or eight (CS1844) cables are provided with this
package.
Note: The quality of the display is affected by the quality of the cables.We
recommend the total length from the source to the monitor to not exceed
6 meters (3 meters between the PC and the KVM switch. 3 meters
between the KVM switch and the monitor). If you need additional
cables, please contact your dealer to purchase ATEN approved cables.
Operating Systems
Windows
Mac
Linux
Chapter 1. Introduction
5
Components
CS1842 Front View
CS1844 Front View
No. Component Description
1 Mode Selection
Pushbutton
This pushbutton allows you to cycle through the four focus
modes – complete, KVM, audio, and USB.
Press and hold Mode Selection Pushbutton before powering on
and to enter Firmware Upgrade Mode.
2 Port Selection
Pushbuttons
For manual port selection (see Manual Switching, page 17):
Press a port selection pushbutton for longer than two seconds to
only bring the KVM focus to the computer attached to its corre-
sponding port.
Press a port selection pushbutton twice to bring the audio focus
to the computer attached to its corresponding port.
Press a switch for less than two seconds to bring the KVM, USB
hub, and audio focus to the computer attached to its correspond-
ing port.
Press switches 1 and 2 simultaneously for 2 seconds to start
Auto Scan Mode (see Auto Scanning, page 23).
Press switches 3 and 4 simultaneously for 2 seconds to perform
a Keyboard/Mouse reset. Note: This feature is for CS1844 only.
3
2 1 2
4 5
3
2 1 2
4 5
CS1842 / CS1844 User Manual
6
CS1842 Rear View
CS1844 Rear View
3 Port LEDs This panel contains LED icons that light to indicate mode and port
status. The Mode and Port Selection Pushbuttons have three
corresponding LED icons that light to indicate status – KVM, Audio,
and USB. Refer to LED Status Panel on page 8 for more info.
4 Audio Jacks Your console speakers and microphone plug in here.
5 USB 3.1 Gen 1
Peripheral Port
USB peripherals (printers, scanners, drives etc.) plug into this port.
This USB 3.1 Gen 1 port features 5 Gbps data transfer rates for
compatible USB peripherals.
No. Component Description
1 DCC Port
(Daisy Chain Control)
This RJ-45 port is used to connect two units together when
setting up DCC mode for a Quad-Display mode. See Quad-
Display Installation, page 15 for instructions.
2 Console Ports Section The cables from your keyboard, mouse, monitors,
microphone, and speakers plug in here. Each connector is
marked with an appropriate icon to indicate itself.
No. Component Description
21 3
94 7
5 6 8
21 3
94 75 6 8
Chapter 1. Introduction
7
Note: All console ports are located in the grey area.
3 KVM Ports Section The cables that link the switch to your computers plug in
here. Each KVM port section is comprised of a microphone
jack, speaker jack, USB Type B socket and two HDMI
connectors
4 Power Jack The power adapter cable plugs into this jack.
5 Audio Jacks Your console speakers and microphone plug in here.
Note:The microphone and speakers plugged into the front
panel have priority over those plugged into these jacks.
6 USB 3.1 Gen 1
Peripheral Port USB peripherals (printers, scanners, drives etc.) plug into
this port. This USB 3.1 Gen 1 port features 5 Gbps data
transfer rates for compatible USB peripherals.
7 DCC Switch This switch is used to specify the Host and Client when
setting up two units in Quad-Display DCC mode. See Quad-
Display Installation, page 15 for instructions.
Slide the DCC switch to the s position to allow the KVM
switch to receive RS-232 commands via an
RJ-45-to-DB-9 cable. Please see RS-232 Operation,
page 35.
8 Remote Port Selector
Jack
The Remote Port Selector plugs in here.
9 Grounding Terminal The grounding wire used to ground the switch attaches here.
No. Component Description
CS1842 / CS1844 User Manual
8
LED Status Panel
The LED status panel is located above the pushbuttons. The LED columns
respectively correspond to the pushbuttons below.
Port LED Behavior
The LEDs of currently focused connectors (KVM, audio, USB link) will be
fully-lit.
The LED(s) of KVM connectors not currently focused but connected will be
half-lit.
The LED(s) of audio and USB link connectors not currently focused will be
dimmed.
No. Component
1 Port LED / KVM Icon LED
2 Audio Icon LED
3 USB Link Icon LED
4 Mode Selection LED
CS1842 (Front)
CS1844 (Front)
4
1 1
2 3
4
1 1
2 3
32
2
3
Chapter 1. Introduction
9
Mode Selection Pushbutton and Mode LED Behavior
Pressing the Mode Selection Pushbutton different number of times will light up
different Mode LED, which allows for the follow-up action shown in the table.
For more information on the follow-up actions, please refer to Manual
Switching on page 17.
Button Press Mode LED that Lights up Follow-Up Action
Once
KVM, Audio, USB Press any of the Port Selection
Pushbutton to select focus for all
connectors
Twice
KVM Press any of the Port Selection
Pushbutton to select focus for KVM
connector
Three times
Audio Press any of the Port Selection
Pushbutton to select focus for audio
connectors
Four times
USB Press any of the Port Selection
Pushbutton to select focus for USB
link
CS1842 / CS1844 User Manual
10
Buzzer Behavior
Refer to Buz zer Co ntrol on page 27 if you w is h to turn the buzze r on or off.
Sound Description
1 beep
Changing port
Activating auto-scan mode
Pausing/resuming auto-scan
1 long beep
Powering on the unit
Resetting the unit
2 beeps
Interrupting auto-scan
Entering keyboard emulation off mode
Finishing USB synchronization
11
Chapter 2
Hardware Setup
Cable Connections
To set up your installation, refer to the installation diagram on the following
page (the numbers in the diagram on page 13 correspond to the steps below),
and do the following:
1. Ground the CS1842 / CS1844 by connecting one end of a grounding wire
to the Grounding Terminal and the other end to a suitable grounded object.
Note: Do not omit this step. Proper grounding helps to prevent damage to
the unit from power surges or static electricity.
2. Plug your USB keyboard and USB mouse into the USB console ports from
the Console Ports Section located on the unit’s rear panel.
3. Plug your HDMI monitors into the HDMI console ports from the Console
Ports Section located on the unit’s rear panel and power on the monitors.
4. Plug your microphone and speakers into the Audio Jacks located on the
unit’s front panel. Audio cables are required to be connected on the CPU
side for this connection to work.
5. Plug your secondary microphone and speakers into the Audio Jacks
located on the unit’s rear panel.
Note: The microphone and speakers plugged into the front panel have
priority over those plugged into these jacks.
1. Important safety information regarding the placement of this
device is provided on page 55. Please review it before
proceeding.
2. To prevent damage to your installation from power surges or
static electricity. It is important that all connected devices are
properly grounded.
3. Make sure that power to all the devices you will be installing has
been turned off. You must unplug the power cords of any
computers that have the Keyboard Power On function.
CS1842 / CS1844 User Manual
12
6. Use the provided cable sets (HDMI cables, USB 3.0 cable, microphone
cable, and speaker cable) with this package. Plug the HDMI connector into
any available HDMI “A” socket on the KVM Ports Section of the switch
(CPU1, CPU2, etc.), then plug the USB 3.0 cable, microphone cable, and
speaker cable into their corresponding sockets. Use another HDMI cable
from the cable sets, plug the HDMI connector into the HDMI “B” socket
in the same KVM Ports Section of the switch.
Note: Verify that all the connectors are in the same KVM Ports Section (all
in CPU1, all in CPU2, etc.).
7. At the other end of the cables from step 6, plug the HDMI cables, USB 3.0
cable, microphone cable, and speaker cable into their respective ports on
the computer. Repeat steps 6, and 7 for each dual-screen PC system you
are installing.
8. (Optional) Plug your USB peripherals into the front or rear USB 3.1 Gen 1
Peripheral Ports.
9. (Optional) If you choose to use the remote port selector, plug its cable into
the Remote Port Selector Jack, located on the unit’s rear panel.
10. Plug the power adapter that came with your switch into an AC power
source, then plug the power adapter cable into the switch’s Power Jack.
Now the CS1842 / CS1844 is turned on.
11. Power on the computers.
Note:
By default, the switch links to the first computer that is powered on.
The total cable length from the PC to monitor (including KVM) cannot
exceed 6 meters.
Choosing high quality cables helps to ensure that 4K UHD (3840 x
2160 @ 60 Hz) or 4K DCI (4096 x 2160 @ 60 Hz) resolutions can be
reached.
It is highly recommended that the CS1842 / CS1844 is kept powered
on at all times.
Make sure the computers and devices that the CS1842 / CS1844
connects to are also properly grounded.
Chapter 2. Hardware Setup
13
Installation Diagram
2
1
4
10
5 8 9
6
DT2955!)Gspou
*
DT2955!)Sfbs*
7
3
8
CS1842 / CS1844 User Manual
14
Quad-Display (DCC Mode)
To expand your installation to a Quad-Display display, you can use DCC Mode
to connect two CS1842 / CS1844 units together, and use four displays in
unison.
To set up DCC mode, power off all devices, refer to the installation diagram on
the next page (the numbers in the diagram correspond to the steps, below), and
do the following:
1. Connect all the computers to the Host as described in Hardware Setup,
Cable Connections, page 11.
2. On the Client, using two HDMI cables, plug the HDMI connectors into the
HDMI sockets A and B in the same KVM port section of the switch.
3. At the other end of the two HDMI cables, plug the monitor cable into the
respective ports on the computer.
4. Repeat steps 2 and 3 for all computers.
5. Plug the console monitors into the HDMI console ports located on the
Host’s and Client’s rear panel.
6. Use an RJ-45 cable to connect the DCC port of the Host to the DCC port
of the Client.
7. On the rear of the Client set the DCC switch to Secondary.*
8. On the rear of the Host set the DCC switch to Primary.
9. Power up the installation: plug in the power cord for the Host and Client,
then power on both. After both units are up, power on the computer/video
source devices.
Note:P means Primary, and S means Secondary.
In DCC mode, the Client’s front panel pushbuttons are disabled,
and it takes all commands directly from the Host.
Setting the DCC switch to the S position will disable all front
panel pushbuttons on that switch.
Make sure the computers and devices that the CS1842 / CS1844
connects to are also properly grounded.
Chapter 2. Hardware Setup
15
Quad-Display Installation
5
Host
Client
2
3
5
6
7
1
5
8
CS1842 / CS1844 User Manual
16
This Page Intentionally Left Blank
17
Chapter 3
Basic Operation
Port Switching
There are five convenient methods to switch between the computers: Manual
– by pressing the port selection pushbuttons on the front panel, Mouse – by
clicking the scroll wheel of the mouse, Hotkey – by entering combinations on
the keyboard, Remote Port Selector – by pressing the remote port selector
button, and RS-232 Commands – by entering the correct command and control.
Manual Switching
For manual port selection:
To bring complete focus (audio, KVM, and USB) to a computer, either,
a) press the port selection pushbutton that corresponds to that computer; or
b) press the Mode pushbutton once (the Mode pushbutton’s three icons
light up) and then press the port selection pushbutton that corresponds to
that computer. All three port icons light up.
To bring only the KVM focus to a computer, press the Mode pushbutton
twice (the Mode pushbutton’s KVM icon lights up), and then press the
port selection pushbutton that corresponds to that computer. The port’s
KVM icon (the port number) lights up.
To bring only the audio focus to a computer, press the Mode pushbutton
three times (the Mode pushbutton’s audio icon lights up), and then press
the port selection pushbutton that corresponds to that computer. The port’s
audio icon lights up.
To bring only the USB focus to a computer, press the Mode pushbutton
four times (the Mode pushbutton’s USB icon lights up), and then press the
port selection pushbutton that corresponds to that computer. The port’s
USB icon lights up.
Note: 1. Press and release either port selection pushbutton to stop Auto
Scan Mode. The KVM focus goes to the computer attached to the
corresponding port of the pushbutton you pressed.
2. If a port is not selected within five seconds of pushing the Mode
pushbutton, the Mode pushbutton will power off.
CS1842 / CS1844 User Manual
18
Mouse Switching
For mouse port selection: Double-click the scroll wheel of your USB mouse to
cycle through the ports.
Note: 1. Mouse switching is only supported by USB 3-key scroll wheel mice.
2. Mouse switching is disabled by default. See Hotkey Setting Mode
(HSM), page 24, to enable mouse switching.
3. Mouse switching is only supported when Mouse Emulation is
enabled.
Hotkey Switching
For Hotkey port selection: All port switches from the keyboard begin by
pressing the Scroll Lock key twice. Regarding details of the Hotkey
parameters, see Hotkey Operation, page 21.
Remote Port Selector Switching
For Remote Port Selection: Press the remote port selector button to cycle
through the ports. Make sure the remote port selector is plugged into the
Remote Port Selector Jack.
RS-232 Commands
For RS-232 port selection: Enter the correct command and control to switch
port. Regarding details of the RS-232 command and control, see Switch Port,
page 40.
Hot Plugging
The CS1842 / CS1844 supports USB hot plugging – components can be
removed and added back into the installation by unplugging their cables from
the USB hub ports without the need to shut the unit down.
Chapter 3. Basic Operation
19
Powering Off and Restarting
If it becomes necessary to power off the CS1842 / CS1844 unit, before starting
it back up, you must do the following:
1. Shut down all the computers that are attached to the switch.
2. Unplug the switch’s power adapter cable.
3. Wait 10 seconds, then plug the switch’s power adapter cable back in.
4. Once the switch is powered up, power on the computers.
Port ID Numbering
Each KVM port section on the CS1842 / CS1844 switch is assigned a port
number (1 or for the CS1842; 1 to 4 for the CS1844). The port numbers are
marked on the rear panel of the switch (see page 5 for details).
The Port ID of a computer is derived from the KVM port number it is
connected to. For example, a computer connected to KVM port 2 has a Port ID
of 2.
The Port ID is used to specify which computer gets the KVM, USB peripheral,
and audio focus with the Hotkey port selection method (see page 22 for
details).
Alternative Manual Port Selection Settings
When Hotkey Setting Mode has been activated, pressing [S] will invoke the
alternative front panel pushbutton manual port selection functions, as
explained below:
Press a port selection pushbutton once to bring only the KVM focus to the
computer attached to its corresponding port.
Press a port selection pushbutton twice to bring the audio focus to the
computer attached to its corresponding port.
Press and hold a port selection pushbutton for more than 2 seconds to
bring the KVM, audio and USB focus to the computer attached to its
corresponding port.
Press and hold port selection pushbuttons 1 and 2 for more than 2 seconds
to start Auto Scan Mode, see page 23 for details.
CS1842 / CS1844 User Manual
20
This Page Intentionally Left Blank
21
Chapter 4
Hotkey Operation
The CS1842 / CS1844 provides an extensive, easy-to-use, Hotkey function that
makes it convenient to control and configure your KVM installation from the
keyboard. Hotkeys provide asynchronous (independent) switching of the
KVM, USB hub and audio focus. If you wish, you can give one computer the
KVM console focus, another the USB hub focus and the other two the audio
focus.
Port Switching
All port switches begin with tapping the [Scroll Lock] key twice. The tables
below describe the actions that each combination performs.
Note: If using the Scroll Lock key conflicts with other programs running on
the computer, the [Ctrl] key can be used, instead. See Alternate Port
Switching Keys, page 25, for details.
Cycling Through the Ports
Hotkey Action
[Scroll Lock] [Scroll Lock]
[Enter]
Brings the KVM, USB hub, and audio focus from the
port that currently has the KVM focus to the next port on
the installation (1 to 2; 2 to 3; 3 to 4; 4 to 1).
[Scroll Lock] [Scroll Lock]
[K] [Enter]
Brings only the KVM focus from the port that currently
has it to the next port on the installation. The USB and
audio focus remain where they are.
[Scroll Lock] [Scroll Lock]
[U] [Enter]
Brings only the USB hub focus from the port that
currently has it to the next port on the installation. The
KVM and audio focus remain where they are.
[Scroll Lock] [Scroll Lock]
[S] [Enter]
Brings only the audio focus from the port that currently
has it to the next port on the installation. The KVM and
USB hub focus remain where they are.
CS1842 / CS1844 User Manual
22
Going Directly to a Port
Note: The n stands for the computer’s Port ID number (1, 2, 3, or 4). See Port
ID Numbering, page 19 for details. Replace the n with the appropriate
Port ID when entering Hotkey combinations.
Hotkey Action
[Scroll Lock] [Scroll Lock] [n]
[Enter]
Brings the KVM, USB hub, and audio focus to the
computer attached to the port corresponding to the
specified Port ID.
[Scroll Lock] [Scroll Lock] [n]
[K] [Enter]
Brings only the KVM focus to the computer attached
to the specified port. The USB hub and audio focus
remain where they are.
[Scroll Lock] [Scroll Lock] [n]
[U] [Enter]
Brings only the USB hub focus to the computer
attached to the specified port. The KVM and audio
focus remain where they are.
[Scroll Lock] [Scroll Lock] [n]
[S] [Enter]
Brings only the audio focus to the computer attached
to the specified port. The KVM and USB hub focus
remain where they are.
[Scroll Lock] [Scroll Lock] [n]
[K] [U] [Enter]
Brings the KVM and USB hub focus to the computer
attached to the specified port. The audio focus
remains where it is.
[Scroll Lock] [Scroll Lock] [n]
[K] [S] [Enter]
Brings the KVM and audio focus to the computer
attached to the specified port. The USB hub focus
remains where it is.
[Scroll Lock] [Scroll Lock] [n]
[U] [S] [Enter]
Brings the USB hub and audio focus to the computer
attached to the specified port. The KVM focus
remains where it is.
[Scroll Lock] [Scroll Lock] [n]
[K] [S] [U] [Enter]
Brings the KVM, USB hub and audio focus to the
computer attached to the specified port.
Note: This is the same action as [Scroll Lock] [Scroll
Lock] [n] [Enter]
Chapter 4. Hotkey Operation
23
Auto Scanning
The CS1842 / CS1844’s Auto Scan feature automatically cycles the KVM
focus through the computer ports at regular intervals. This allows you to
monitor the computer activity without having to take the trouble of switching
from port to port manually. See the table below for details.
Note: 1. The n stands for the number of seconds that the CS1842 / CS1844
should dwell on a port before moving on to the next. Replace the n
with a number between 1 and 99 when entering this Hotkey
combination.
2. While Auto Scan Mode is in effect, ordinary keyboard and mouse
functions are suspended – only Auto Scan Mode compliant
keystrokes and mouse clicks can be input. You must exit Auto Scan
Mode in order to regain normal control of the console.
3. Although the video focus switches from port to port, the audio and
USB focus do not switch. They stay at the port they were on when
Auto Scanning started.
4. To exit Auto Scan Mode, press the [Esc] key, or the [Spacebar].
Hotkey Action
[Scroll Lock] [Scroll
Lock] [A] [Enter]
Invokes Auto Scan. The KVM focus cycles from port to port
at 5 second intervals. Five second intervals is the Default
setting.
[Scroll Lock] [Scroll
Lock] [A] [n] [Enter]
The KVM focus cycles from port to port at n second intervals.
CS1842 / CS1844 User Manual
24
Hotkey Setting Mode (HSM)
Hotkey Setting Mode (HSM) is used to set up your CS1842 / CS1844 switch
configuration. All operations begin with invoking Hotkey Setting Mode.
Invoking HSM
To invoke HSM do the following:
1. Press and hold down [Num Lock].
2. Press and release [-].
3. Release [Num Lock].
Note: There is an alternate key combination to invoke HSM. See below for
details.
When HSM is active, the Caps Lock, and Scroll Lock LEDs flash in succession
to indicate that HSM is in effect. They stop flashing and revert to normal status
when you exit HSM.
Ordinary keyboard and mouse functions are suspended – only Hotkey
compliant keystrokes and mouse clicks (described in the sections that follow),
can be input.
At the conclusion of some Hotkey operations, you automatically exit Hotkey
mode. With some operations, you must exit manually. To exit HSM manually,
press the [Esc] key, or the [Spacebar].
Chapter 4. Hotkey Operation
25
Alternate HSM Invocation Keys
An alternate set of HSM invocation keys is provided in case the default set
conflicts with programs running on the computers.
To switch to the alternate HSM invocation set, do the following:
1. Invoke HSM (see page 24).
2. Press and release [H].
The HSM invocation keys become the [Ctrl] key (instead of [Num Lock])
and the [F12] key (instead of [-]).
Note: This procedure is a toggle between the two methods. To revert back
to the original HSM invocation keys, invoke HSM, then press and
release the [H] key again.
Alternate Port Switching Keys
An alternate way of activating port switching is by pressing the [Ctrl] key
twice. To use the alternate port switching hotkeys, do the following:
1. Invoke HSM (see page 24).
2. Press and release [T].
Note: This procedure is a toggle between the two methods. To revert back
to the original [Scroll Lock] [Scroll Lock] method, go through the
steps above.
CS1842 / CS1844 User Manual
26
Keyboard Operating Platform
The CS1842 / CS1844’s default port configuration is for a PC compatible
keyboard operating platform. If your console uses a PC compatible keyboard
and you have a Mac or Sun attached to a port, for example, you can change the
port’s keyboard operating platform configuration so that the PC compatible
keyboard emulates the Mac or Sun keyboard. The procedure is as follows:
1. Bring the KVM focus to the port you want to set.
2. Invoke HSM (see page 24).
3. Press and release the appropriate Function key (see table below). After
completing this procedure, you automatically exit HSM.
List Switch Settings
To see a listing of the current switch settings, do the following:
1. Open a text editor or word processor and place the cursor in the page
window.
2. Invoke HSM (see page 24).
3. Press and release [F4] to display the settings.
USB Reset
If the USB loses focus and needs to be reset, do the following:
1. Invoke HSM (see page 24).
2. Press and release [F5].
Function Key Operation
[F1] Sets the SPC mode so that it can work under special
operating systems as a standard (104 key) keyboard.
[F2] Enables Mac keyboard emulation, see page 33, for details.
[F3] Enables Sun keyboard emulation, see page 34, for details.
[F10] Enables Windows keyboard emulation.
Chapter 4. Hotkey Operation
27
Keyboard Language
To change the keyboard language, do the following:
1. Invoke HSM (see page 24).
2. Press and release [F6] [nn] [Enter].
Note: nn is a two-digit number that represents the keyboard language code
(US English: 33; French: 08; Japanese: 15; German: 09).
Buzzer Control
The buzzer can be turned on or off. To turn the buzzer on/off, do the following:
1. Invoke HSM (see page 24).
2. Press and release [B].
Hotkey Port Switching
To enable/disable hotkey port switching, do the following:
1. Invoke HSM (see page 24).
2. Press [X] [Enter].
When disabled, port switching hotkeys [Scroll Lock] [Scroll Lock] (and the
alternative [Ctrl] [Ctrl]) will not work.
Firmware Upgrade Mode
To enter Firmware Upgrade Mode, do the following:
1. Invoke HSM (see page 24).
2. Key in: upgrade
3. Press [Enter].
The front panel LEDs flash to indicate Firmware Upgrade Mode is in
effect.
Note: To exit Firmware Upgrade Mode, you must power off the switch.
CS1842 / CS1844 User Manual
28
Restore Default Settings
To reset the CS1842 / CS1844 to its default Hotkey settings, do the following:
1. Invoke HSM (see page 24).
2. Press [R] [Enter].
All Hotkey settings return to the factory default settings.
Power on Detection
With Power on Detection, if the focus computer is powered off, the switch will
automatically switch to the next powered-on computer. Power on Detection
can be enabled or disabled. The default setting is enabled. To enable/disable
Power on Detection, do the following:
1. Invoke HSM (see page 24).
2. Press [E].
Alternative Manual Port Selection Settings
To toggle between the default and the alternative front panel pushbutton
manual port selection settings, do the following:
1. Invoke HSM (see page 24).
2. Press [S].
See Alternative Manual Port Selection Settings, page 19, for full details of the
alternative front panel pushbutton manual port selection settings.
Keyboard Emulation Control
To enable/disable keyboard emulation, do the following:
1. Invoke HSM (see page 24).
2. Press [N].
Mouse Emulation Control
To enable/disable mouse emulation, do the following:
1. Invoke HSM (see page 24).
2. Press [M].
Chapter 4. Hotkey Operation
29
Mouse Port Switching
Mouse Port Switching allows you to switch ports using mouse wheel button
(clicked twice). For Mouse Port Switching to work, Mouse Emulation must be
enabled. To enable/disable mouse port switching, do the following:
1. Invoke HSM (see page 24).
2. Press [W].
N-Key Rollover Keyboard Supporting Function
To enable/disable N-key rollover keyboard supporting function, do the
following:
1. Invoke HSM (see page 24).
2. Press [K] [Enter].
CS1842 / CS1844 User Manual
30
HSM Summary Table
After in voking HSM ( see page 24) , key in o ne of the fo llowing keys to perfo rm
the cor re sponding f unction:
Key Function
[F1] Sets the keyboard and mouse to SPC mode so that it can work
under special operating systems as a standard (104 key)
keyboard and mouse.
[F2] Enables Mac keyboard emulation.
[F3] Enables Sun keyboard emulation.
[F4] Print the switch’s current settings via a text editor or word
processor.
[F5] Performs a USB keyboard and mouse reset.
[F6] [n][n] [Enter] Sets the keyboard language layout. Where nn is a two digit
number that represents the keyboard language code (US
English: 33, French: 08, German: 09, Japanese: 15).
[F10] Enables Windows keyboard emulation.
[B] Enables/disables the buzzer.
[E] Turns the Power-on-Detection function on/off.
[H] Toggles between the default and alternate HSM invocation keys.
[K] [Enter] Enables/disables N-key rollover keyboard supporting function.
[M] Enables/disables mouse emulation.
[N] Enables/disables keyboard emulation.
[R] [Enter] Resets the Hotkey settings to their default status.
[S] Toggles between the default and alternate manual port selection
pushbutton settings.
[T] Toggles between the default and alternate Port Switching keys.
[u] [p] [g] [r] [a] [d]
[e] [Enter]
Invokes Firmware Upgrade Mode.
[W] Enables/disables Mouse Port Switching. When enabled, click the
mouse wheel twice to switch ports. Mouse emulation must be
enabled.
[X] [Enter] Enables/disables Hotkey Port Switching.
Chapter 4. Hotkey Operation
31
[Esc] or
[Spacebar]
Quits setting mode.
Key Function
CS1842 / CS1844 User Manual
32
This Page Intentionally Left Blank
33
Chapter 5
Keyboard Emulation
Mac Keyboard
The PC compatible (101/104 key) keyboard can emulate the functions of the
Mac keyboard. The emulation mappings are listed in the table below.
Note: When using key combinations, press and release the first key (Ctrl),
then press and release the activation key.
PC Keyboard Mac Keyboard
[Shift] Shift
[Ctrl] Ctrl
[Ctrl] [1]
[Ctrl] [2]
[Ctrl] [3]
[Ctrl] [4]
[Alt] Alt
[Print Screen] F13
[Scroll Lock] F14
=
[Enter] Return
[Backspace] Delete
[Insert] Help
[Ctrl] F15
CS1842 / CS1844 User Manual
34
Sun Keyboard
The PC compatible (101/104 key) keyboard can emulate the functions of the
Sun keyboard when the control key [Ctrl] is used in conjunction with other
keys. The corresponding functions are shown in the table below.
Note: When using key combinations, press and release the first key (Ctrl),
then press and release the activation key.
PC Keyboard Sun Keyboard
[Ctrl] [T] Stop
[Ctrl] [F2] Again
[Ctrl] [F3] Props
[Ctrl] [F4] Undo
[Ctrl] [F5] Front
[Ctrl] [F6] Copy
[Ctrl] [F7] Open
[Ctrl] [F8] Paste
[Ctrl] [F9] Find
[Ctrl] [F10] Cut
[Ctrl] [1]
[Ctrl] [2]
[Ctrl] [3]
[Ctrl] [4]
[Ctrl] [H] Help
Compose
-
+
35
Chapter 6
RS-232 Operation
Overview
The CS1842 / CS1844’s built-in bi-directional RS-232 serial interface allows
system control through a high-end controller or PC. RS-232 serial operations
in a CS1842 / CS1844 installation are managed via HyperTerminal sessions on
systems that are running Windows. In order to use this feature to send
commands to the CS1842 / CS1844, you must first download and install a
HyperTerminal application.
Setup
Install a HyperTerminal application on a computer that is not part of the
installation, which will be used to control the switch via the RS-232
connection. HyperTerminal applications can be download from the Internet,
and many operating systems are embedded with HyperTerminal applications.
Hardware Connection
Use a RJ-45 to DB-9 serial adapter to connect a computer’s serial port to the
DCC Port on the CS1842 / CS1844, as shown below:
Note: 1. Slide the DCC Switch to the S position (Secondary) to allow the
KVM switch to receive RS-232 commands.
2. The unit used in the diagram below is CS1844, the procedure for
connecting CS1842 is identical with fewer KVM ports.
CS1842 / CS1844 User Manual
36
RS-232 Pin Assignments
Pin assignments for the CS1842 / CS1844’s rear DCC Port that is used for
connecting to a serial terminal are given in the table, below:
Pin Assignment
1N/A
RJ-45 Female
2N/A
3 TXD: Transmit Data
4N/A
5 GND: Signal Ground
6 RXD: Receive Data
7N/A
8N/A
RJ-45 to DB-9 Adapter
18
Chapter 6. RS-232 Operation
37
Console Login - HyperTerminal
Once a physical connection from the computer to the CS1842 / CS1844 has
been made, you can establish a HyperTerminal session using the instructions
below.
1. Open the HyperTerminal application, and configure the port settings for
COM1 port, then click OK.
Bits per Second: 19200, Data Bits: 8, Parity: None, Stop bits: 1, Flow Control:
None.
2. After configuring the port settings you must enable serial control on the
switch by typing the command: Open + [Enter].
CS1842 / CS1844 User Manual
38
RS-232 Commands
After you login via HyperTerminal (seeConsole Login - HyperTerminal) use
the in struction s below to send RS-232 com mands to control the switch from the
computer.
When RS-232 control is enabled via the Open + [Enter] command, the
CS1842 / CS1844’s front panel pushbuttons, mouse switching, hotkeys, and
remote port selector will be disabled.
Verification
After entering a command, a verification message appears, as shown below, at
the end of the command line, as follows:
With all commands in the sections that follow:
Each command string can be separated with a space.
The [Enter] command can be replaced with the ASCII code: 0x0D0A
Response Message Description
Command OK Command or parameter is correct.
Command incorrect Command or parameter is incorrect.
Chapter 6. RS-232 Operation
39
Open / Close
The Open and Close commands allows you to start and end the link between
the computer sending RS-232 commands and the CS1842 / CS1844. When the
link is open, the CS1842 / CS1844 only accepts RS-232 commands and will
not respond to front panel pushbuttons, mouse switching, hotkeys, and remote
port selector. The link starts with the open command and ends with the close
command or after 2 minutes if no command is sent. The default value is close.
Note: To regain full control of front panel pushbuttons, mouse switching,
hotkeys, and remote port selector, close the RS-232 link command and
slide the DCC Switch to the P position (Primary).
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + [Enter]
Parameters:
Open/Close RS-232 Link Command
The available formulas for the Open/Close RS-232 Link commands are as
follows:
1. Command + [Enter]
For example, to open the RS-232 link between the computer and CS1842 /
CS1844, type the following:
open [Enter]
2. Command + [Enter]
For example, to close the RS-232 link between the computer and CS1842 /
CS1844, type the following:
close [Enter]
Command Description
open Open RS-232 Link command
close Close RS-232 Link command
Enter Description
Enter Enter and send out command
CS1842 / CS1844 User Manual
40
Switch Port
The Switch Port command allows you to switch ports. The default port is 01.
Use the Formula - to set Parameters - to create a Command.
Formula:
Command + Control + [Enter]
Parameters:
Switch Port Commands
Some available formulas for the Switch Port commands are as follows:
1. Command + Control + [Enter]
For example, to switch to port 2, type the following:
sw i02 [Enter]
Note: The Control command can be skipped and the default value will be
used.
Command Description
sw Switch Port Command
Control Description
ixx Input Port Number
x= 01~02 (CS1842); 01~04
(CS1844)
Enter Description
Enter Enter and send out command
Chapter 6. RS-232 Operation
41
Set Baud Rate
The Set Baud Rate command allows you to configure the baud rate setting for
the serial port connection. The default baud rate is 19200.
Use the Formula - to set Parameters - to create a Command.
Formula:
Command + Control + [Enter]
Parameters:
Set Baud Rate Commands
Some available formulas for the Set Baud Rate commands are as follows:
1. Command + Control + [Enter]
For example, to set the baud rate to 19200, type the following:
baud 19200 [Enter]
Command Description
baud Baud Rate Command
Control Description
19200 Set baud rate to 19200 (Default)
38400 Set baud rate to 38400
9600 Set baud rate to 9600
Enter Description
Enter Enter and send out command
CS1842 / CS1844 User Manual
42
Keyboard Language Layout
The Keyboard Language Layout command allows you to change the keyboard
language layout. The default language is English.
Use the Formula - to set Parameters - to create a Command.
Formula:
Command + Control + [Enter]
Parameters:
Keyboard Language Layout Commands
Some available formulas for Keyboard Language Layout commands are as
follows:
1. Command + Control + [Enter]
For example, to change the keyboard language layout to Japanese, type the
following:
layout jp [Enter]
2. Command + Control + [Enter]
For example, to change the keyboard language layout to French, type the
following:
layout fr [Enter]
Command Description
layout Keyboard Language Layout Command
Control Description
en Change the keyboard language layout to
English
fr Change the keyboard language layout to
French
jp Change the keyboard language layout to
Japanese
ge Change the keyboard language layout to
German
Enter Description
Enter Enter and send out command
Chapter 6. RS-232 Operation
43
Hotkey Setting
The Hotkey Setting command allows you to change the hotkey used to invoke
the HSM (Hotkey Setting Mode). The default hotkey is [Num Lock] + [-].
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control + [Enter]
Parameters:
Hotkey Setting Commands
Some available formulas for Hotkey Setting commands are as follows:
1. Command + Control + [Enter]
For example, to change the HSM invoke key to [Num Lock] + [-], type the
following:
hotkey num [Enter]
2. Command + Control + [Enter]
For example, to change the HSM invoke key to [Ctrl] + [F12], type the
following:
hotkey f12 [Enter]
Command Description
hotkey Hotkey Setting Command
Control Description
num Change the HSM invoke key to:
[Num Lock] + [-]
f12 Change the HSM invoke key to:
[Ctrl] + [F12]
Enter Description
Enter Enter and send out command
CS1842 / CS1844 User Manual
44
Hotkey Switching
The Hotkey Switching command allows you to change the hotkey used for
switching. The default hotkey is [Scroll][Scroll].
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control + [Enter]
Parameters:
Hotkey Switching Commands
Some available formulas for Hotkey Switching commands are as follows:
1. Command + Control + [Enter]
For example, to change the hotkey switching mode to [Scroll] [Scroll], type the
following:
switch scroll [Enter]
2. Command + Control + [Enter]
For example, to change the hotkey switching mode to [Ctrl] [Ctrl], type the
following:
switch ctrl [Enter]
Command Description
switch Hotkey Switching Command
Control Description
scroll Change hotkey switching key to:
[Scroll] [Scroll]
ctrl Change hotkey switching key to:
[Ctrl] [Ctrl]
Enter Description
Enter Enter and send out command
Chapter 6. RS-232 Operation
45
USB Reset
The USB Reset command allows you to reset the USB connection. The default
USB reset setting is off.
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control + [Enter]
Parameters:
USB Reset Command
The available formula for the USB Reset command is as follows:
1. Command + Control + [Enter]
For example, to reset the USB connection, type the following:
usbreset on [Enter]
Command Description
usbreset USB Reset Command
Control Description
on Enable USB reset connection
Enter Description
Enter Enter and send out command
CS1842 / CS1844 User Manual
46
Restore Default Settings
The Restore Default Settings command allows you to reset all of the settings
back to the default. The default setting is off.
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control + [Enter]
Parameters:
Restore Default Value Command
The available formula for the Restore Default Settings command is as follows:
1. Command + Control + [Enter]
For example, to restore all CS1842 / CS1844 settings back to the default, type
the following:
reset on [Enter]
Command Description
reset Restore Default Settings Command
Control Description
on Enable restore default values
Enter Description
Enter Enter and send out command
Chapter 6. RS-232 Operation
47
Firmware Upgrade
The Firmware Upgrade command allows you to enable the firmware upgrade
mode. The default setting is off.
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control+ [Enter]
Parameters:
Firmware Upgrade Command
The available formula for the Firmware Upgrade command is as follows:
1. Command + Control + [Enter]
For example, to enable firmware upgrade mode, type the following:
upgrade on [Enter]
Command Description
upgrade Firmware Upgrade Command
Control Description
on Enable firmware upgrade mode
Enter Description
Enter Enter and send out command
CS1842 / CS1844 User Manual
48
KVM Status
The KVM Status command allows you to display read-only information about
the switches’ current configuration status. The default setting is off.
Use the Formula - to set Parameters - to create a Command.
Formulas:
Command + Control + [Enter]
Parameters:
KVM Status Command
The available formula for the KVM Status command is as follows:
1. Command + Control + [Enter]
For example, to display the CS1842 / CS1844’s configuration status, type the
following:
status on [Enter]
A message similar to the one below will then appear:
hotkey: [numlock]+[-] / [scrolllock],[scrolllock]
os setting: pc
keyboard emulation: enabled/disabled
keyboard layout: English
mouse emulation: enabled/disabled
monitor re-detection: enabled/disabled
Command Description
status KVM Status Command
Control Description
on Enable KVM status
Enter Description
Enter Enter and send out command
49
Chapter 7
The Firmware Upgrade Utility
The Windows-based Firmware Upgrade Utility (FWUpgrade.exe) provides a
smooth, automated process for upgrading the CS1842 / CS1844’s firmware.
The Utility comes as part of a Firmware Upgrade Package that is specific for
each device. New firmware upgrade packages are posted on our website as new
firmware revisions become available. Check the website regularly to find the
latest packages and information relating to them:
http://www.aten.com/global/en/support-and-downloads/downloads/
Before You Begin
To prepare for the firmware upgrade, do the following:
1. From a computer that is not part of your KVM installation, go to the
ATEN Support & Download site and choose the model name that relates to
your device (CS1842 / CS1844) to get a list of available Firmware
Upgrade Packages.
2. Choose the Firmware Upgrade Package you want to install (usually the
most recent), and download it to your computer.
3. Disconnect the CS1842 / CS1844 from your KVM installation and power
it off. Connect the USB cable’s Type A USB connector to a USB port on
your computer.
4. At the other end of the USB cable, connect the USB Type B connector to
the Type B USB port in the Port 1 KVM section.
Note: The USB cable’s USB Type B connector can be connected to any
KVM port section, but the Port Selection pushbutton in Step 5, below, must
be Port 1.
5. Press and hold the Mode pushbutton. While holding the button, connect
the power adapter to the CS1842 / CS1844 to enter Firmware Upgrade
Mode. The front panel LEDs flash together to indicate Firmware Upgrade
Mode is in effect.
Note: The USB mouse becomes not functional when the firmware upgrade
mode is in effect.
CS1842 / CS1844 User Manual
50
Starting the Upgrade
To upgrade your firmware:
1. Run the downloaded Firmware Upgrade Package file – either by double
clicking the file icon, or by opening a command line and entering the full
path to it.
The Firmware Upgrade Utility Welcome screen appears:
Note: The screens shown in this section are for reference only. The
wording and layout of the actual screens put up by the Firmware
Upgrade Utility may vary slightly from these examples.
2. Read the License Agreement (enable the I Agree radio button).
6. The Firmware Upgrade Utility
51
3. Click Next to continue. The Firmware Upgrade Utility main screen
appears:
The Utility inspects your installation. All the devices capable of being
upgraded by the package are listed in the Device List panel.
4. As you select a device in the list, its description appears in the Device
Description panel.
CS1842 [MAIN]..
CS1842 [MAIN]..
CS1842 / CS1844 User Manual
52
5. After you have made your device selection(s), Click Next to perform the
upgrade.
If you enabled Check Firmware Version, the Utility compares the device’s
firmware level with that of the upgrade files. If it finds that the device’s
version is higher than the upgrade version, it brings up a dialog box
informing you of the situation and gives you the option to Continue or
Cancel.
If you didn’t enable Check Firmware Version, the Utility installs the
upgrade files without checking whether they are a higher level, or not.
As the Upgrade proceeds, status messages appear in the Status Messages
panel, and the progress toward completion is shown on the Progress bar.
The firmware [Ver 1.0.] is not newer than the current firmware
[Ver 1.0.090] in device CS1842 [MAIN]: 000
Continue the upgrade? [Yes/No]
6. The Firmware Upgrade Utility
53
Upgrade Succeeded
After the upgrade has completed, a screen appears to inform you that the
procedure was successful:
Click Finish to close the Firmware Upgrade Utility.
After a successful completion, the switches exit Firmware Upgrade Mode, and
reset themselves.
If you have a DCC mode installation be sure to reconnect the cable connected
to the DCC port, and set the DCC switch back to Client on the appropriate
switch (see Quad-Display (DCC Mode), page 14).
CS1842 [MAIN]..
CS1842 [MAIN]
CS1842 [MAIN]000:OK
CS1842 [MAIN]
CS1842 / CS1844 User Manual
54
Upgrade Failed
If the Upgrade Succeeded screen doesn’t appear, it means that the upgrade
failed to complete successfully, in which case you should do the following:
1. Power off the CS1842 / CS1844 by removing the power jack.
2. Invoke Firmware Upgrade Mode by holding down the Mode Selection
pushbutton on the front panel (see Mode Selection Pushbutton, page 5 for
CS1842, and see page 5 for CS1844) and power on the CS1842 / CS1844.
The orange LEDs flash together.
3. Do the firmware upgrade procedure again.
55
Appendix
Safety Instructions
Read all of these instructions. Save them for future reference.
This device is for indoor use only.
Follow all warnings and instructions marked on the device.
Do not place the device on any unstable surface (cart, stand, table, etc.).
If the device falls, serious damage will result.
Do not use the device near water.
Do not place the device near, or over, radiators or heat registers.
The device cabinet is provided with slots and openings to allow for
adequate ventilation. To ensure reliable operation, and to protect against
overheating, these openings must never be blocked or covered.
The device should never be placed on a soft surface (bed, sofa, rug, etc.) as
this will block its ventilation openings. Likewise, the device should not be
placed in a built in enclosure unless adequate ventilation has been provided.
Never spill liquid of any kind on the device.
Unplug the device from the wall outlet before cleaning. Do not use liquid
or aerosol cleaners. Use a damp cloth for cleaning.
The device should be operated from the type of power source indicated on
the marking label. If you are not sure of the type of power available,
consult your dealer or local power company.
Avoid circuit overloads. Before connecting equipment to a circuit, know
the power supply’s limit and never exceed it. Always review the electrical
specifications of a circuit to ensure that you are not creating a dangerous
condition or that one doesn’t already exist. Circuit overloads can cause a
fire and destroy equipment.
To prevent damage to your installation, it is important that all devices are
properly grounded.
Do not allow anything to rest on the power cord or cables. Route the
power cord and cables so that they cannot be stepped on or tripped over.
Position system cables and power cables carefully; Be sure that nothing
rests on any cables.
CS1842 / CS1844 User Manual
56
Never push objects of any kind into or through cabinet slots. They may
touch dangerous voltage points or short out parts resulting in a risk of fire
or electrical shock.
Do not attempt to service the device yourself. Refer all servicing to
qualified service personnel.
If the following conditions occur, unplug the device from the wall outlet
and bring it to qualified service personnel for repair.
The power cord or plug has become damaged or frayed.
Liquid has been spilled into the device.
The device has been exposed to rain or water.
The device has been dropped, or the cabinet has been damaged.
The device exhibits a distinct change in performance, indicating a need
for service.
The device does not operate normally when the operating instructions
are followed.
Only adjust those controls that are covered in the operating instructions.
Improper adjustment of other controls may result in damage that will
require extensive work by a qualified technician to repair.
Do not connect the RJ-11 connector marked “UPGRADE” to a public
telecommunication network.
Appendix
57
Rack Mounting
Before working on the rack, make sure that the stabilizers are secured to
the rack, extended to the floor, and that the full weight of the rack rests on
the floor. Install front and side stabilizers on a single rack or front
stabilizers for joined multiple racks before working on the rack.
Always load the rack from the bottom up, and load the heaviest item in the
rack first.
Make sure that the rack is level and stable before extending a device from
the rack.
Do not overload the AC supply branch circuit that provides power to the
rack. The total rack load should not exceed 80 percent of the branch circuit
rating.
Make sure that all equipment used on the rack – including power strips and
other electrical connectors – is properly grounded.
Ensure that proper airflow is provided to devices in the rack.
Ensure that the operating ambient temperature of the rack environment
does not exceed the maximum ambient temperature specified for the
equipment by the manufacturer
Do not step on or stand on any device when servicing other devices in a rack.
Caution: Slide/rail (LCD KVM) mounted
equipment is not to be used as a shelf or a work
space.
CS1842 / CS1844 User Manual
58
Technical Support
Technical support is available both by email and online (with a browser over
the web):
International
For online technical support – including troubleshooting, documentation,
and software updates: http://support.aten.com
For telephone support, see Telephone Support, page iv:
North America
When you contact us, please have the following information ready beforehand:
Product model number, serial number, and date of purchase.
Your computer configuration, including operating system, revision level,
expansion cards, and software.
Any error messages displayed at the time the error occurred.
The sequence of operations that led up to the error.
Any other information you feel may be of help.
Email Support support@aten-usa.com
Online Technical
Support
Troubleshooting
Documentation
Software Updates
http://www.aten-usa.com/support
Telephone Support 1-888-999-ATEN ext 4988
1-949-428-1111
Appendix
59
Specifications
*Port switching only works with 3-key USB mouse wheel in emulation mode.
Function CS1842 CS1844
Computer
Connections
Direct 2 4
Port Selection Pushbutton, Hotkey, RS-232 Commands, Remote Port
Selector, Mouse*
Connectors Console
Ports
Keyboard 1 x USB Type A Female
Mouse 1 x USB Type A Female
Video 2 x HDMI Female (Black)
Speakers 2 x 3.5mm Audio Jack Female (Green; 1 x front, 1 x rear)
Microphone 2 x 3.5mm Audio Jack Female (Pink; 1 x front, 1 x rear)
KVM Ports KB / Mouse 2 x USB 3.1 Gen 1 Type B
Female (Blue)
4 x USB 3.1 Gen 1 Type B
Female (Blue)
Video 4 x HDMI Female (Black) 8 x HDMI Female (Black)
Speakers 2 x 3.5mm Audio Jack
Female (Green)
4 x 3.5mm Audio Jack
Female (Green)
Microphone 2 x 3.5mm Audio Jack
Female (Pink)
4 x 3.5mm Audio Jack
Female (Pink)
Daisy Chain Port 1 x RJ-45 Female
Remote Port Selector 1 x 2.5mm Audio Jack Female
Power 1 x DC Jack
USB Hub 2 x USB 3.1 Gen 1 Type A Female (Blue; 1 x front, 1 x
rear)
LED On Line / Selected 3 (Orange) 5 (Orange)
Audio 3 (Green) 5 (Green)
USB Link 3 (Green) 5 (Green)
Switches Selected 3 x Pushbutton 5 x Pushbutton
Station Selection 1 x Slide switch 1 x Slide switch
Emulation KB / Mouse USB
Video 4096 x 2160 @ 60 Hz
Scan Interval 1–99 secs. (default: 5 seconds)
Power Consumption DC12V:3.17W:57BTU DC12V:4.42W:63BTU
Environment Operating Temp. 0–40ºC
Storage Temp. -20–60ºC
Humidity 0–80% RH, Non-condensing
Physical
Properties
Housing Metal
Weight 1.60 kg (3.52 lb) 1.57 kg (3.46 lb)
Dimensions (L x W x H) 33.50 x 16.05 x 4.40 cm
(13.19 x 6.32 x 1.73 in)
33.50 x 16.05 x 4.40 cm
(13.19 x 6.32 x 1.73 in)
CS1842 / CS1844 User Manual
60
Optional Rack Mounting
Installation Kit Mounting
2X-045G rack mounting option is available for CS1842 / CS1844. To install
the 2X-045G rack mounting kit, do the following:
Note: The 2X-045G is sold separately. Contact your ATEN dealer for product
information.
1. Remove the rubber feet from the bottom of the unit.
2. Use the M3 X 8 Phillips hex cap screws supplied with the rack mounting
kit to screw the rack mounting brackets in the side near the front of the
unit.
Appendix
61
3. Place the KVM switch in the rack. Position it so that the holes in the
mounting brackets line up with the holes in the rack. Secure the mounting
brackets to the front of the rack.
CS1842 / CS1844 User Manual
62
Troubleshooting
Overview
Operation problems can be due to a variety of causes. The first step in solving
them is to make sure that all cables are securely attached and seated completely
in their sockets.
In addition, updating the product’s firmware may solve problems that have
been discovered and resolved since the prior version was released. If your
product is not running the latest firmware version, we strongly recommend that
you upgrade. See Chapter 6, The Firmware Upgrade Utility, for upgrade
details.
Symptom Possible Cause Action
Mouse and/or
Keyboard not
responding.
Improper mouse
and/or keyboard
reset.
Unplug the cable(s) from the console port(s),
then plug it/them back in.
CS1842 / CS1844
needs to be reset.
Power off all devices on the installation (see
safety note, top of page 11); power off the
CS1842 / CS1844; wait five seconds; then
power up
USB devices
not responding.
USB ports need to
reset.
Unplug the device’s USB cable from the USB
port on the CS1842 / CS1844’s rear panel,
then plug it back in.
PC or OS does not
support USB 2.0/3.0.
The CS1842 / CS1844 has a built-in USB 3.0
hub, so will not support PCs or OS that do not
support USB 2.0/3.0.
For an OS that does not support USB 2.0,
keyboard and mouse functions can be reset
using the [F1] Hotkey function. See page 30.
Device not
recognized
(Windows).
Windows timing
problem.
1. Unplug the KVM cable from the com-
puter’s USB port.
2. Go into Windows’ System Settings and
remove the Unknown Device entry.
3. Plug the KVM cable back in. Windows will
now recognize the device.
Front Panel
Pushbuttons not
responding
when pushed.
The daisy chain
switch located on the
back of the CS1842 /
CS1844 is set to
Client.
Make sure the daisy chain switch located on
the rear of the switch is set to Host.
You should only set the daisy chain switch to
Client when connecting two units in a Hex-
Display installation, see Quad-Display (DCC
Mode), page 14.
Appendix
63
The Front Panel
Pushbutton
Combo key
doesn’t work
after its set.
Some Hotkeys are
not supported as
front panel
pushbutton combo
keys.
The [X] [Enter], [R] [Enter]. and [upgrade]
[Enter] Hotkeys can not be set as a front
panel pushbutton combo key. Select a
different Hotkey to use.
Symptom Possible Cause Action
CS1842 / CS1844 User Manual
64
Hotkey Default Settings
The hotkey factory default settings are as follows:
Setting Default
Port Switching [Scroll Lock] [Scroll Lock]
Invoking HSM [Number Lock] [-]
Keyboard Emulation Enabled
Mouse Emulation Enabled
Auto Scan Interval 5 Seconds
Mouse Wheel Switching Disabled
Power On Detection Enabled
Keyboard Operating Platform Windows
Keyboard Language Layout English
Beeper Enabled
Firmware Upgrade Mode Disabled
Port Switching Keys Enabled
N-Key Rollover Keyboard Enabled
Appendix
65
Limited Warranty
ATEN warrants its hardware in the country of purchase against flaws in
materials and workmanship for a Warranty Period of two [2] years (warranty
period may vary in certain regions/countries) commencing on the date of
original purchase. This warranty period includes the LCD panel of ATEN LCD
KVM switches. Select products are warranted for an additional year (see A+
Warranty for further details). Cables and accessories are not covered by the
Standard Warranty.
What is covered by the Limited Hardware Warranty
ATEN will provide a repair service, without charge, during the Warranty
Period. If a product is detective, ATEN will, at its discretion, have the option
to (1) repair said product with new or repaired components, or (2) replace the
entire product with an identical product or with a similar product which fulfills
the same function as the defective product. Replaced products assume the
warranty of the original product for the remaining period or a period of 90 days,
whichever is longer. When the products or components are replaced, the
replacing articles shall become customer property and the replaced articles
shall become the property of ATEN.
To learn more about our warranty policies, please visit our website:
http://www.aten.com/global/en/legal/policies/warranty-policy/
CS1842 / CS1844 User Manual
66
© Copyright 2021 ATEN® International Co., Ltd.
ATEN International Co., Ltd., 3F, No. 125, Sec. 2, Datung Rd., Sijhih District, New Taipei City 221, Taiwan
Phone: 886-2-8692-6789 Fax: 886-2-8692-6767 TECHNICAL SUPPORT CENTER: 886-2-8692-6959
Printing Date: 2021-01-04
ATEN and the ATEN logo are registered trademarks of ATEN International Co., Ltd. All rights reserved.
Manual Part No. PAPE-0400-AT1G
All other brand names and trademarks are the registered property of their respective owners. The terms
HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered
trademarks of HDMI Licensing Administrator, Inc.