Command Protocol; Figure 10- Pinout Of Matrix-Y-1 Cable; Figure 11- Rs232 Communication Illustrated - NTI RACKMUX-DS17-NT-4DVIHD Installation And Operation Manual

NTI RACKMUX KVM Drawer with UNIMUX Switch

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). As command strings are sent, the inner character delay cannot exceed 500 milliseconds.
(RESPONSE RECEIVED)
Note: To use this command protocol, the user is required to write a program that will send an entire command string all
at once, not character by character. Programs that send one character at a time (such as HyperTerminal) cannot be used
to control the UNIMUX. Alternatively, the user may use the NTI Switch Control Program or SerTest to control the
UNIMUX via RS232 (see page 18).
Wiring Schematic of Matrix-Y-1 cable
9D Male 9D Female
(Unit #1)
(Source)
2
3 3
5 5
2
7
8
1
4
6
Figure 17- Pinout of Matrix-Y-1 cable
CPU
(COMMAND SENT)
RS232
CS 01,01,03<CR>
RS232
CS 01,01,03<CR>
* <CR>
Figure 18- RS232 Communication Illustrated
9D Male
(Unit #2)
3
Not connected to
source connector
5
2
Jumper
Jumpers
SWITCH AT UNIT ADDRESS 01
(COMMAND RECEIVED)
CS 01,01,03<CR>
(ECHO)
CS 01,01,03<CR>
(RESPOND)
* <CR>
16