ATEN CS1824 Service Manual

CS1822 / CS1824

2/4-Port USB3.0 4K HDMI KVMP™ Switch

RS-232 Commands

User Manual

www.aten.com

CS1822 / CS4824 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 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

RoHS

This product is RoHS compliant

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CS1822 / CS4824 RS-232 Commands

RJ-11 to DB-9 Adapter

RS-232 Operation

Overview

The CS1822 / CS1824’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 CS1822 / CS1824 installation are managed via HyperTerminal sessions on
systems that are running Windows. In order to use this feature to send
commands to the CS1822 / CS1824, 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 CS1822 /
CS1824 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 (LIN5-04A2-J11G) to connect a
computer’s serial port to the serial port on the CS1822 / CS1824, as shown
below:

Note: The unit used in the diagram below is CS1824, the procedure for

connecting CS1822 is identical with fewer KVM ports.

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CS1822 / CS4824 RS-232 Commands

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RS-232 Pin Assignments

Pin assignments for the CS1822 / CS1824’s rear RJ-11 Serial Port that is used
for connecting to a serial terminal are given in the table, below:

Note: This RJ-11 female connector is 4P4C.

Pin Assignment

1 TXD: Transmit Data

2 RXD: Receive Data

3N/A

4 GND: Signal Ground

RJ-11 Female

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CS1822 / CS4824 RS-232 Commands

Console Login - HyperTerminal

Once a physical connection from the computer to the CS1822 / CS1824 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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CS1822 / CS4824 RS-232 Commands

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
CS1822 / CS1824’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 CS1822 / CS1824 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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