Features and Functions 2
34980A User’s Guide 75
• You can control the slope of the pulse from the alarm outputs
(the selected configuration is used for all four outputs). In the falling
edge mode, 0V (TTL low) indicates an alarm. In the rising edge mode,
+5V (TTL high) indicates an alarm. A Factory Reset (*RST command)
will reset the slope to falling edge.
Note: Changing the slope of the output lines may cause the lines to
change state.
Front Panel Operation:
• To manually clear all four alarm output lines, select:
Alarm > CLEAR ALARM OUT? > YES|NO
• To select the output configuration for all four output lines, select:
Alarm > ALARM OUT SIGNAL > TRACK|LATCH
• To configure the slope of all four output lines, select:
Alarm > ALARM OUT SLOPE > NEGATIVE|POSITIVE
Remote Interface Operation: To clear the specified output lines (or to clear
all four lines), use one of the following commands.
To select the output configuration for all four output lines, use the
following command.
OUTPut:ALARm:MODE {LATCh|TRACk}
To configure the slope of all four output lines, use the following command.
OUTPut:ALARm:SLOPe {NEGative|POSitive}
OUTPUT:ALARM2:CLEAR
OUTPUT:ALARM:CLEAR:ALL
Clear alarm output line 2
Clear all four alarm outputs
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