Rs232 Control; Rs232 Connections And Configuration; Remote Connection; Baud Rate - NTI RACKMUX Series Installation Manual

NTI RACKMUX-4K17-N-16HD4K RACKMOUNT DRAWER WITH 4K VIDEO USB KVM SWITCH

RS232 CONTROL

RS232 enables the UNIMUX to be remotely controlled via RS232. To control the UNIMUX via RS232 the user has three options:
 write a program that runs on a PC using the Command Protocol
 use the NTI Switch Control Program (page 19)
 use the SerTest program (page 19)

RS232 Connections and Configuration

Remote Connection

The RS232 Interface (optional) is designed to meet the RS232C standard and can be controlled from any CPU or other controller
with an RS232 communications port. The pin-out for the RJ45 connector on the unit is as follows:
RS232 (RJ45) CONNECTOR
PIN SIGNAL FUNCTION
1 - No connection
2 - No connection
3 RX+ Receive data (TXD at host)
4 GND Ground
5 - No connection
6 TX+ Transmit data (RXD at host)
7 - No connection
8 - No connection
A 5 foot patch cable and RJ45-to-DB9 adapter has been provided for connection to most CPUs (see page 7).

Baud Rate

The default application baud rate for the UNIMUX is 115200. This can be changed to 1200,2400,4800,19200,38400,57600 or
115200 using RS232 control commands.
Note: When performing a firmware upgrade, the baud rate will always be 115200, regardless of what the application baud
rate has been set to.

Command Protocol

RS232 commands supported by the unit are defined below. All command strings should be terminated with a <CR> (carriage
return). When a command is sent, the entire string is echoed back along with a response from the addressed unit as shown in the
command definitions. All characters in the command string should be upper case, and all numbers below 10 should have a
leading 0 (ex: 1 = 01).
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