NTI NODEMUX MULTI-USER UNIVERSAL KVM SWITCH

RS-232 Command Protocol

Host controller commands supported by the unit are defined below.

RS-232 Command Protocol Quick Reference

Legend:

(All numbers must be two digits)

 

 

 

SW :

Switch (01-15)

MM

:

Save Into Memory Bank (00-09)

BR

:

Baud Rate Code (12,24,48,96)

LL

:

Load From Memory Bank (00-09)

OP

:

Output/User Port (01-MAXOUTPUTS)

<CR>:

Carriage Return (Hex 0xD)

IP

:

Input Port/CPU (01-MAXINPUTS)

 

 

 

Command String

Good Response

Description

CS SW,IP,OP

*<CR>

KVM Connect One User Port To CPU Port

CA SW,IP

*<CR>

KVM Connect All User Ports To CPU Port

RO SW,OP

*<CR>IP<CR>

KVM Read Connection For User Port

CC SW,MM

*<CR>MM<CR>

Save Matrix Connections Into Memory Bank

RC SW,LL

*<CR>LL<CR>

Restore Matrix Connections From Memory Bank

CB 00,BR

None

Change Baud Rate For All Switches

RS SW

*<CR>

Internal Reset

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)

GO SW,OP

*<CR>go

Read connection of a User Port to CPU Port

 

SW,OP,IP<CR>

 

GM SW,00

*<CR>go SW,OP:IP (all

Read connection matrix of all User ports

 

ports)<CR>

 

If the syntax of a command is incorrectly entered, the command will be ignored or the switch will answer with a bad response ?<CR>.

Autostatus

When Autostatus is enabled, any output-to-input connection change in the NODEMUX 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 Matrix Switcher's Control Program (page 20).

By default, Autostatus is disabled and must be manually enabled. Autostatus is also disabled any time the power to the NODEMUX is interrupted.

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Network Technologies ST-nXm-U operation manual RS-232 Command Protocol Quick Reference

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