User manual

70 Relay Multiplexer Command Reference Chapter 3
Comments Enabling “Trig Out” Port: When enabled, a pulse is output from the “Trig
Out” port after each scanned switchbox channel is closed. If disabled, a
pulse is not output from the port after channel closures. The output is a
negative-going pulse.
“Trig Out” Port Shared by Switchboxes: Only one switchbox configuration
can use the selected trigger at a time. When enabled, the “Trig Out” port
is pulsed by the switchbox each time a scanned channel is closed. To
disable the output for a specific switchbox, send the OUTP OFF or 0
command for that switchbox.
One Output Selected at a Time: Only one output (ECLTrg0 or 1; TTLTrg0,
1, 2, 3, 4, 5, 6, or 7; or EXTernal) can be enabled at one time. Enabling
a different output source will automatically disable the active output.

For example, if TTLTrg1 is the active output and TTLTrg4 is enabled,
TTLTrg1 will become disabled and TTLTrg4 will become the active
output.
Related Commands: [ROUTe:]SCAN, TRIGger:SOURce,
OUTPut[:EXTernal][:STATe]?
*RST Condition: OUTPut[:EXTernal][:STATe] OFF (disabled)
Example Enabling "Trig Out" Port
OUTP:EXT 1
!Enable "Trig Out" port to output pulse

after each scanned channel is closed
OUTPut[:EXTernal][:STATe]?
OUTPut[:EXTernal][:STATe]? queries the present state of the "Trig Out"
port. The command returns "1" if the port is enabled or "0" if disabled.
Example Query "Trig Out" Port Enable State
This example enables the "Trig Out" port and queries the enable state.
The OUTPut? command returns "1" since the port is enabled.
OUTP:EXT ON
!Enable “Trig Out” port
OUTP:EXT?
!Query port enable state
OUTPut:TTLTrgn[:STATe]
OUTPut:TTLTrgn[:STATe] <mode> selects and enables which TTL
Trigger bus line (0 to 7) will output a trigger when a channel is closed
during a scan. This is also used to disable a selected TTL Trigger bus
line. "n" specifies the TTL Trigger bus line (0 to 7) and "mode" enables
(ON or 1) or disables (OFF or 0) the specified TTL Trigger bus line.