User`s manual

Agilent E8462A Relay Multiplexer Command Reference 113
Increment loop
Increment loop count.
TRIGger:SOURce?
TRIGger:SOURce? Returns the current trigger source for the switchbox.
Command returns BUS, ECLT, EXT, HOLD, IMM, or TTLT for sources
BUS,
ECLTrgn, EXTernal, HOLD, IMMediate, or TTLTrgn, respectively.
Example Querying the Trigger Source
This example sets external triggering and queries the trigger source. Since external
triggering is set,
TRIG:SOUR? returns "EXT".
TRIG:SOUR EXT
Set external trigger source.
TRIG:SOUR?
Query trigger source.