BNC 645 - Manual (Page 152)

152
Disable or enable the Sync connector on the front-panel. The default is ON.
By disabling the Sync signal, you can reduce the output distortion at lower
amplitude. When the Sync signal is disabled, the output level on the Sync
connector is a logic “low” level.
•
When a waveform is inverted, its Sync signal is not inverted.
•
This command is overridden by the setting of the MARK command used
with the sweep mode, therefore when the marker frequency is enabled
(and the sweep is enabled too), the OUTP:SYNC is ignored.
OUTPut:SYNC?
“0” or “1” indicating the enable state of the Sync connector on the front panel
will be returned.
OUTPut:TRIGger:SLOPe {POSitive|NEGative}
Specify an edge for the “trigger out” signal. When the trigger out signal is
enabled by OUTP:TRIG command, a TTL-compatible square waveform with the
specified edge is output from the Ext Trig connector on the rear panel at the
beginning of the sweep or burst. For a pulse with a rising edge, use Positive and
for a pulse with a falling edge, use Negative.
z
When using the Immediate (internal) trigger source (the TRIG:SOUR IMM
command), the waveform generator outputs a square waveform with a
50% duty cycle (the rising edge is the sweep trigger) from the Ext Trig
connector on the rear panel. The period is equal to the sweep time.
z
When using the External trigger source (the TRIG:SOUR EXT command),
the waveform generator disables the “trigger out” signal and the Ext Trig
connector is use for sending an externally-triggered sweep.
z
When using the Bus (software) trigger source (the TRIG:SOUR BUS
command), the waveform generator outputs a pulse (>1 μs pulse width)
from the Ext Trig connector at the beginning of the sweep.
OUTPut:TRIGger:SLOPe?
“POS” or “NEG” string indicating the edge for the “trigger out” signal will be
returned.
OUTPut:TRIGger {OFF︱ON}
Disable or enable the trigger out signal. The default is OFF. When the trigger out
signal is enabled, a TTL-compatible square waveform with the specified edge is