Rs232 Control; Rs232 Connections And Configuration; Remote Connection; Baud Rate - NTI RACKMUX-DS17-NT-4DVIHD Installation And Operation Manual

NTI RACKMUX KVM Drawer with UNIMUX 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 (page 16)
 use the NTI Switch Control Program (page 18)
 use the SerTest program (page 18)


RS232 Connections and Configuration

Remote Connection

The RS232 Interface 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 have been provided for connection to most CPUs (see page 10).

Baud Rate

The baud rate can be changed by powering down the unit, changing the 8-position RS232 DIP switch on the rear of the UNIMUX,
and then powering back up. This table shows how to set the baud rate. (Figure 15 shows switches in their factory-default position.)
DIP
SWITCH
3 2
OFF OFF
OFF ON
ON OFF
ON ON
BAUD RATE
2400
9600 (default)
19200
38400
RS232
ON
1
Figure 15- RS232 DIP switches
14
8