MXS-9100 Optical Switch Rackmount Operation Manual
91592 Rev. A2
June 21, 2019
25
*STB?
Query Status Byte. This
query returns the contents of the Status Byte Register. The Status Byte is
defined in the table below. See Section
Table 3. Status Byte Register
Name
Event
Bit
Decimal
MAV
0 - No messages in the output queue.
1 - There is a message in the output queue.
4
16
ESB
0 - No standard event occurred.
1 - A standard event occurred.
5
32
RQS
0 - No enabled service request occurred.
1 - An enabled service request occurred.
6
64
*TST?
Self-Test. This
command performs a self-test and returns the result of the self-test.
A return value of 0 indicates that the self-test passed and the module is functioning normally. Any
other return value indicates the self-test failed.
*WAI
Wait-to-Continue. This
command causes the module to wait until all pending operations are complete
before executing the next remote command.
System Commands
QCT?
This query returns the cumulative total number of times that the switch states have been recorded for
the auto-save state feature.
WEN [n]
Write Channel State Enable. This command will either enable (n = 1) or disable (n = 0) the auto-save
state feature. With this command enabled the matrix switch will automatically save the current switch
state, so if power to the switch is interrupted the switch will automatically return the last switch state
once power is restored. The default state for this command is set to disabled.
Warning:
A maximum of
1,024,000,000 switch states can be permanently recorded before the
memory is full. Once the memory is full, it cannot be erased
.
Examples:
WEN 0
Disable auto-save state feature.
WEN 1
Enable auto-save state feature.
WEN?
Query Write Channel State Enable Status. This command queries if the WEN command (auto-save
state feature) is enabled or disabled. It will return 0 if not enabled, or 1 if enabled.
