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NTI KEEMUX Series PS/2 KVM Switch

Command Protocol

Host controller commands supported by the unit are defined below.

Notes:

• All commands should be terminated with an <Enter> (ASCII 13) denoted by <CR>. When a

command is sent, the entire string is echoed back to the CPU along with a response from the

addressed unit as shown in the command definitions. Unit response will be sent within 500 msec

after <CR>.

• Use a program that will send an entire command line all at once, not character by character. Do not use the program

HyperTerminal in WINDOWS, as it sends each character one at a time.

• All characters should be upper case, and all numbers below 10 should have a leading 0 (ex: 1 = 01).

• For units with one USER port, use 01 for the USER select.

RS - reset unit(s) to default power-up configuration

FORMAT: RS AA<CR>

RS = "reset unit" command followed by at least one space

AA = unit address; if 00, all units on the bus will be reset and no response will be

returned

RESPONSE: *<CR> if command received and executed OK

-OR-

?<CR> if syntax or transmission error occurred

Note: The RS command does not change the actual configuration.

CS - change single USER channel

FORMAT: CS AA,XX,YY<CR>

CS = "change single output" command followed by at least one space

AA = unit address

XX = input/CPU to connect

YY = output/USER to change

RESPONSE: *<CR> (command received and executed OK)

-OR-

?<CR> (syntax or transmission error occurred)

CA - change all output channels

FORMAT: CA AA,XX<CR>

CA = "change all outputs" command followed by at least one space

AA = unit address

XX = input /CPU to connect to all outputs/USERS

RESPONSE: *<CR> (command received and executed OK)

?<CR> (syntax or transmission error occurred)

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Network Technologies KEEMUX-Px Manuel d'utilisateur Page 23