External triggering with BNC connections
An adapter cable is available to connect the micro-DIN Trigger Link of the Model 2016 to
instruments with BNC trigger connections. The Model 8503 DIN to BNC Trigger Cable has a
micro-DIN connector at one end and two BNC connectors at the other end. The BNC cables are
labeled VMC (trigger line 1) and EXT TRIG (trigger line 2).
Figure 3-9 shows how a Keithley Model 706 Scanner can be connected to the Trigger Link
of the Model 2016 using the adapter cable. With this adapter, a Model 706 could be substituted
for the Model 7001/7002 in the previous example. With the Model 706 set for External
Triggering, the test would start when the single scan mode is selected and initiated.
If the Model 2016 trigger line configuration has been changed from the factory setting, the
Model 8502 Trigger Link Adapter must be used to interface with instruments having BNC
trigger connections. It has two micro-DIN connectors and six BNC connectors, one for each
trigger line.
Buffer operations
The Model 2016 has a buffer to store from two to 1024 readings and units. It also stores the
channel number for scanned readings and overflow readings. In addition, recalled data includes
statistical information, such as minimum, maximum, average, and standard deviation.
The buffer fills with the requested number of readings and stops. Readings are placed in the
buffer after any math operations are performed. Buffered data is overwritten each time the
storage operation is selected. The data is volatile; it is not saved through a power cycle.
The following paragraphs discuss storing and recalling buffered data.
Model 2016
706 Scanner
Channel
Ready
External
Trigger
Model 8503 DIN to BNC Trigger Cable
1
3 5
2
4 6
VMC
EXT TRIG
FUSE LINE
100 VAC
120 VAC
250 mAT
(SB)
220 VAC
240 VAC
500 mAT
(SB)
WARNING:NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
WARNING:NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
CAUTION:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
RS232
120
MADE IN
U.S.A.
INPUT
500V
PEAK
350V
PEAK
1000V
PEAK
TRIGGER
LINK
SENSE
Ω 4W
HI
LO
!
LINE RATING
50, 60
25 VA MAX
IEEE-488
(CHANGE IEEE ADDRESS
FROM FRONT PANEL)
!
!
42V PEAK
SOURCE
OUTPUT
SOURCE
OUTPUT
INV/PULSE
!
igure 3-9
IN to BNC trigger cable
3-16 Measurement Options
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