ATEN CS1942DP Service Manual

CS1942DP / CS1944DP

2/4-Port USB 3.0 4K DisplayPort

Dual Display KVMPTM Switch

RS-232 Commands

V1.0

User Manual

www.aten.com

CS1942DP / CS1944DP RS-232 Commands

EMC Information

FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT:
This equipment has been tested and found to comply with the limits for a Class B
digital service, pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
Any changes or modifications made to this equipment may void the user’ s authority to
operate this equipment. This equipment generates, uses, and can radiate radio
frequency energy. If not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, the re is no guarantee
that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

 Reorient or relocate the receiving antenna.
 Increase the separation between the equipment and receiver.
 Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

 Consult the dealer or an experienced radio/TV technician for help

This 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.

KCC Statement

이 기기는 가정용 (B 급 ) 전자파적합기기로서 주로 가정에서 사용하는
것을 목적으로 하며 , 모든 지역에서 사용할 수 있습니다 .

RoHS

This product is RoHS compliant.

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CS1942DP / CS1944DP RS-232 Com-

RS-232 Operation

Overview

The CS1942DP / CS1944DP’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 CS1942DP / CS1944DP installation are managed via
HyperTerminal sessions on systems that are running Windows. In order to use
this feature to send commands to the CS1942DP / CS1944DP, you must first
download and install a HyperTerminal application. For detailed instructions
and information about each of the commands provided in this manual, please
refer to the CS1942DP / CS1944DP user manual.

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-11 to DB-9 serial adapter to connect a computer’s serial port to the
serial port on the CS1942DP / CS1944DP, as shown below:

RJ-11 to DB-9 Adapter

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CS1942DP / CS1944DP RS-232 Commands

Console Login - HyperTerminal

Once a physical connection from the computer to the CS1942DP / CS1944DP
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].

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CS1942DP / CS1944DP RS-232 Com-

RS-232 Commands

After you login via HyperTerminal (see Console Login - HyperTerminal) use
the instructions below to send RS-232 commands to control the switch from the
computer.

When RS-232 control is enabled via the Open + [Enter] command, the
CS1942DP / CS1944DP’s front panel pushbuttons and hotkeys (excluding the
mouse cursor shift and monitor layout hotkeys) will be disabled, until the serial
connection is closed.

For detailed information about the controls listed in this guide, please refer to
the CS1942DP / CS1944DP user manual.

Verification

After entering a command, a verification message appears, as shown below, at
the end of the command line, as follows:

Response Message Description

Command OK Command or parameter is correct.
Command incorrect Command or parameter is incorrect.

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

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