Racal Instruments 3152, User Manual

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Using The Instrument 3-10
Activating the
Backplane ECLTRG
and TTLTRG
The Model 3152 can transmit and receive signals on the VXIbus
ECLTRG and TTLTRG lines.
Use the following command to activate one of two backplane
ECLTRG lines:
OUTPut:ECLTrg<n> { OFF | ON}
<n> designates the activated trigger line; 0 and 1 are available. ON
enables the selected trigger line. The trigger source for this line can
be selected with the TRIG:SOUR command. The default
ECLTrg<n> state is OFF.
The query:
OUTPut:ECLTrg<n>?
queries the ECLTrg<n> state and returns "<n>,0" (OFF) or "<n>,1"
(ON).
Turning on ECLTRG0 causes the module sample clock signal to be
routed onto the VXI backplane. Other Model 3152s may be set up
to receive this sample clock using the command
FREQ:RAST:SOURCE ECLTRG0 (See Selecting the Sample
Clock Source). ECLTRG1 should not be enabled onto the
backplane. Note that ECLTRG0 and ECLTRG1 are both used for
Inter-Module Synchronization.
The TTLTRG lines can be used to transmit and receive trigger
signals between the Model 3152 and other VXIbus modules.
Use the following command to activate one of eight backplane
TTLTRG lines:
OUTPut:TTLTrg<n> { OFF | ON}
<n> designates the activated trigger line and 0 through 7 are
available. ON enables the selected trigger line. The trigger source
for this line can be selected with the TRIG:SOUR command. The
default TTLTrg<n> state setting is OFF.
The query:
OUTPut:TTLTrg<n>?
queries the TTLTRG<n> state and returns "<n>,0" (OFF) or "<n>,1"
(ON).