NTI RACKMUX-V17-N-8USBHD-IP RACKMOUNT DRAWER WITH USB KVM SWITCH AND KVM ON IP
42
RS232 Command Protocol
Host controller commands supported by the unit are defined below.
RS232 Command Protocol Quick Reference
Legend: (All numbers must be two digits)
SW :
Switch (01-15)
IP :
Input Port/CPU (01-MAXINPUTS)
BR :
Baud Rate Code
<CR>:
Carriage Return (Hex 0xD)
OP :
Output/User Port
Command String
Good Response
Description
CS SW,IP,OP
*<CR>
Connect one User port To CPU port
RO SW,OP
*<CR>IP<CR>
Read Connection For User Port
CB 00,BR
None
Change Baud Rate For All Switches
BR = 12 (1200), 24 (2400), 48 (4800), 96 (9600), 19 (19200),
38 (38400), 57 (57600), 11(115000) (9600 is the default)
RV SW,00
*<CR>string\0<CR>
Read NTI Version String
RU SW
*<CR>IP,OP<CR>
Read Unit Size
SS SW,00
*<CR>
Disable Autostatus feature (see below)
SS SW,01
*<CR>
Enable Autostatus feature (see below)
GM SW,00
*<CR>go SW OP IP<CR>
(all connections)
List all switch User port connections; all User ports to all CPU ports
If the first field is not a known command (as listed above) or SW field is different from the serial address programmed in the switch
memory, the command will be ignored. If the SW field corresponds to the serial address, but the syntax is wrong after this field,
the switch will answer with ?<CR>.
Syntax example:
CS 01,05,01<CR>
(insert the space and commas as shown)
which means “At the switch with unit address 01, connect CPU port 05 to user port 01”
The switch will answer with:
<
CR
>
The HEX code representation of example above is:
Byte 1 Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte
9
‘C’
(0x43)
‘S’
(0x53)
Space
(0x20)
Switch
–
1st digit
(0x30)
Switch
–
2nd digit
(0x31)
‘,’
(0x2C)
Output
–
1st digit
(0x30)
Output
–
2nd digit
(0x35)
‘,’
(0x2C)
Byte 10
Byte 11
Byte 12
Input
–
1st digit
(0x30)
Input
–
2nd digit
(0x31)
<CR>
(0x0D)
Response:
Byte 1
Byte 2
‘
’
(0x2A)
<CR>
(0x0D)
Autostatus
When Autostatus is enabled, any output-to-input connection change in the UNIMUX will cause an Autostatus message to be sent
via RS232 to the administrator. The format of the message would be "pc SW,OP:IP<CR>"
Example of an Autostatus message:
pc 01,01:04<CR>
which means "At the switch with unit address 01, the output (01) has changed connection to input 04."
Notes: Message to the administrator will be delayed by any RS232 traffic being received by the switch from the
administrator.
Autostatus must be disabled before using SerTest or the NTI Switch Control Program (below).
By default, Autostatus is disabled and must be manually enabled. Autostatus is also disabled any time the power to the UNIMUX
is interrupted.
