CS1842 / CS1844
2/4-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
User Manual
www.aten.com
CS1842 / CS1844 User Manual
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.
KCC Statement
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CS1842 / CS1844 User Manual
RoHS
This product is RoHS compliant.
警告使用者：
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
設備名稱
Equipment
Name
單元
Unit
電纜線
Cable
印刷電路部件
PCBA
/
其他部件
塑膠
Plastic / Other
parts
Metal
金屬部件
parts
備考1.〝超出
Note 1：“Exceeding 0.1 wt % ” an d “exceeding 0.01 wt %” indi cate that the percentage content of the restricted
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 that the percentag e content of the restricted substan ce does not exceed the percentag e of
reference value of pres en ce.
備考3.〝－〞係指該項限用物質為排除項目。
Note 3：“−” indicates that the restri cted substance corresponds to the exemption.
此為甲類資訊技術設備，於居住環境中使用時，可能會造
Polybrominated
)
CS1842 / CS1844
多溴聯苯
biphenyls
(PBB)
多溴二苯醚
Polybrominated
diphenyl ethers
(PBDE)
2/4
埠
USB 3.0 4K HD M I
TM
KVMP
多電腦切換器
幕
Restricted substances and its chemical symbols
汞
鉛
0.1 wt %
Lead
Mercury
(Pb)
(Hg)
－○ ○ ○ ○ ○
－○ ○ ○ ○ ○
○○ ○ ○ ○ ○
－○ ○ ○ ○ ○
〞及 〝超出
0.01 wt %
型號
雙螢
(型式)
Type designa-
tion (Type)
限用物質及其化學符號
六價鉻
鎘
Hexavalent
Cadmium
chromium
(Cd)
〞係指限用物質之百分比含量超出百分比含量基準值。
+6
(Cr
製造商：
地址
最大操作環境溫度 :
最大額定電壓 :
宏正自動科技股份有限公司
：新北市汐止區大同路二段 125 號三樓
40ºC
DC 12V
iii
CS1842 / CS1844 User Manual
User Information
Online Registration
Be sure to register your product at our online support center:
International http://eservice.aten.com
Telephone Support
For telephone support, call this number:
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
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.
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CS1842 / CS1844 User Manual
Package Contents
CS1842
1 CS1842 2-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
4 HDMI 2.0 Cables
2 USB 3.0 Cables
2 Speaker Cables
2 Microphone Cables
1 Power Adapter
1 Remote Port Selector
1 User Instructions
CS1844
1 CS1844 4-Port USB 3.0 4K HDMI Dual Display KVMP™ Switch
8 HDMI 2.0 Cables
4 USB 3.0 Cables
4 Speaker Cables
4 Microphone Cables
1 Power Adapter
1 Remote Port Selector
1 User Instructions
1
2
1
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.
v
CS1842 / CS1844 User Manual
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
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CS1842 / CS1844 User Manual
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
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CS1842 / CS1844 User Manual
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
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CS1842 / CS1844 User Manual
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.
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CS1842 / CS1844 User Manual
Conventions
This manual uses the following conventions:
Monospaced Indicates text that you should key in.
[ ] Indicates keys you should press. For example, [Enter] means to
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
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].
→
example), that comes next. For example, Start
open the Start menu, and then select Run.
Indicates critical information.
Run means to
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:
International http://www.aten.com
x
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.
1
CS1842 / CS1844 User Manual
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)
1
4
, remote port
3
Computer selection via pushbuttons, hotkeys, mouse
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
Multilingual keyboard mapping - supports English, Japanese, French, and
German keyboards
HDMI 2.0 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
Auto Scan Mode for monitoring all computers
Firmware upgradeable
5
Supports N-key Rollover
(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.
2
Chapter 1. Introduction
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.
3
CS1842 / CS1844 User Manual
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
re comm en d th e to tal l engt h fro m the s ourc e to th e mo nito r to n ot 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
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Components
3
2 1 2
4 5
3
2 1 2
4 5
CS1842 Front View
CS1844 Front View
No. Component Description
1 Mode Selection
Pushbutton
2 Port Selection
Pushbuttons
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.
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 corresponding 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 corresponding port.
Press switches 1 and 2 simultaneously for 2 seconds to start
Auto Scan Mo de (see Auto Scanning, page 23).
Press switches 3 and 4 simultaneously for 2 seconds to perform
a Keyboard/Mouse reset. Note: This fe ature is for CS1844 only.
Chapter 1. Introduction
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CS1842 / CS1844 User Manual
21 3
9475 6
8
21 3
94 75 6 8
No. Component Description
3 Port LEDs This panel contains LED icons that light to indicate mode and port
4 Audio Jacks Your console speakers and micropho ne plug in here.
5 USB 3.1 Gen 1
Peripheral Port
status. The Mo de and Port Selection Pushbuttons hav e three
corresponding LED icons that light to indicate status – KVM, Audio,
and USB. Refer to LED Status Panel on page 8 for more info.
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.
CS1842 Rear View
CS1844 Rear View
No. Component Description
1 DCC Port
(Daisy Chain Control)
2 Console Ports Sectio n The cables from your keyboard, mouse, monitors,
6
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.
microphone, and speakers plug in here. Each connector is
marked with an appropriate icon to indicate itself.
Chapter 1. Introduction
No. Component Description
3 KVM Ports Section The cables that link the switch to your computers plug in
4 Power Jack The power adapter cable plugs into this jack.
5 Audio Jacks
6 USB 3.1 Gen 1
Peripheral Po rt
7 DCC Switch This switch is used to specify the Host and Client when
8 Remote Port Selector
Jack
9 Grounding Terminal The groundin g wire used to ground the switch attaches here.
here. Each KVM port section is comprised of a microphone
jack, speaker jack, USB Type B socket and two HDMI
connectors
Your console speakers and micropho ne plug in here.
Note:The microphone and speakers plugged into the front
panel have priority over those plugged into these jacks.
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.
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.
The Remote Port Selector plugs in here.
Note: All console ports are located in the grey area.
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CS1842 / CS1844 User Manual
CS1842 (Front)
CS1844 (Front)
4
1 1
2 3
4
1 1
2 3
3
2
2
3
LED Status Panel
The LED status panel is located above the pushbuttons. The LED columns
respectively correspond to the pushbuttons below.
No. Component
1 Port LED / KVM Icon LED
2 Audio Icon LED
3 USB Link Icon LED
4 Mode Selection LED
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.
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Chapter 1. Introduction
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
Twi ce
Three times
Four times
KVM, Audio, USB Press any of the Port Selection
Pushbutton to select focus for all
connectors
KVM Press any of the Port Selection
Pushbutton to select focus for KVM
connector
Audio Press any of the Port Selection
Pushbutton to select focus for audio
connectors
USB Press any of the Port Selection
Pushbutton to select focus for USB
link
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CS1842 / CS1844 User Manual
Buzzer Behavior
Sound Description
1 beep
1 long beep
2 beeps
Refer to Buzzer Control on page 27 if you w is h t o turn the buzzer on or o ff.
Changing port
Activating auto-scan mode
Pausing/resuming auto-scan
Powering on the unit
Resetting the unit
Interrupting auto-scan
Entering keyboard emulation off mode
Finishing USB synchronization
10
Chapter 2
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.
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.
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CS1842 / CS1844 User Manual
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.
12
Installation Diagram
2
1
4
10
*
7
3
8
Chapter 2. Hardware Setup
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5 8 9
6
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