Front Panel Operation
3-60
To select external triggering from the SELECT MEASURE
SRC menu, place the cursor on EXTERNAL and press EN-
TER. The instrument returns to the SETUP measure layer
menu.
MANUAL:
With this selection, the front panel TRIG key
controls the measure source. A device action is performed
when the TRIG key is pressed.
NOTE
Front panel TRIG key is active when
EXTERNAL, GPIB, TRIGLINK, or
TIMER is selected.
To select manual triggering (TRIG key) from the SELECT
MEASURE SRC menu, place the cursor on MANUAL and
press ENTER. The instrument returns to the SETUP mea-
sure layer menu.
GPIB:
With this selection, bus triggers control the measure
source. When the Model 2001 receives a bus trigger (GET or
*TRG), it performs a device action, as defined by the trigger
model. In addition to a measurement, this may include range
changing, filtering, calculations, data storing, scanning, and
other operations. See Section 4 for detailed information on
bus triggers.
NOTE
Front panel TRIG key (see MANUAL) is
active with bus triggering selected.
Pressing the TRIG key performs a device
action.
To select bus triggering from the SELECT MEASURE SRC
menu, place the cursor on GPIB and press ENTER. The dis-
play returns to the SETUP measure layer menu.
TRIGLINK:
With this selection, the measure source is con-
trolled by the Trigger Link of the Model 2001. Trigger Link
is an enhanced trigger system that uses up to six lines to di-
rect trigger pulses to and from other instruments.
When the Model 2001 receives a trigger over the Trigger
Link, it performs a device action, as defined by the trigger
model. In addition to a measurement, this may include range
changing, filtering, calculations, data storing, scanning, and
other operations.
See paragraph 3.7.7 for details on using the Trigger Link.
NOTE
Front panel TRIG key (see MANUAL) is
active with the Trigger Link selected.
Pressing the TRIG key performs a device
action.
To select the Trigger Link from the SELECT MEASURE
SRC menu, place the cursor on TRIGLINK and press EN-
TER. The following menu is displayed:
SET TRIGGERLINK MODE
ASYNCHRONOUS SEMI-SYNCHRONOUS
Asynchronous:
The asynchronous trigger link mode is used
for trigger configurations that require input and output trig-
gers to be routed on separate lines. Perform the following
steps to select the asynchronous mode, and to select the input
and output trigger lines for the Model 2001:
1. With the SET TRIGGERLINK MODE menu displayed,
place the cursor on ASYNCHRONOUS and press EN-
TER. The following message is displayed:
SELECT INPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the presently select-
ed input line.
2. To select a trigger input line for the Model 2001, place
the cursor on the desired line number and press ENTER.
The following message is displayed:
SELECT OUTPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the presently select-
ed output line.
3. To select a trigger output line for the Model 2001, place
the cursor on a different line number and press ENTER.
The instrument returns to the SELECT MEASURE
SOURCE menu. Note that you cannot use the same trig-
ger line for both input and output.
Semi-Synchronous:
In this mode, the input and output trig-
gers for the Model 2001 are assigned to the same line. Per-
form the following steps to select the semi-synchronous
mode, and to select the trigger line:
1. With the SET TRIGGERLINK MODE menu displayed,
place the cursor on SEMI-SYNCHRONOUS and press
ENTER. The following message is displayed:
SET SEMI-SYNC LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the presently select-
ed trigger line.
2. To select a trigger line for the Model 2001, place the cur-
sor on the desired line number and press ENTER. The
instrument returns to the SELECT MEASURE SRC
menu.
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