Keysight Technologies 34921A User Manual page 55

Bank 1
Description Pin
1H 1
1L 2
2H 3
2L 4
3H 5
3L 6
4H 9
4L 10
5H 13
5L 14
As a safety feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to
WARNING
enable the Bank 1 Analog Bus relays to close. The optional 34925T-001 (for
2-wire) terminal block shorts these pins for you. This feature protects
inadvertent routing of high voltages from the Analog Bus to the D-sub
connector of the module.
Keysight 34921A-34925A User's Guide
1H 1L 2H 2L 3H 3L
1 2 3 4 5 6
Reserved 11H 11L 7H 7L
18 21 22
19 20
GND 6H 6L 16H 16L 12H
34 38
35 36 37 39
Description Pin
6H 35
6L 36
7H 21
7L 22
8H 41
8L 42
9H 27
9L 28
10H 45
10L 46
COM COM
1H 1L 4H 4L 14H 14L
7 8 9 10 11 12
17H 17L 13H 13L 9H 9L
24 27 28
23 25 26
12L 8H 8L 18H 18L 10H
41 43 44 45
40 42
Description Pin
11H 19
11L 20
12H 39
12L 40
13H 25
13L 26
14H 11
14L 12
15H 31
15L 32
Bank 1
For orientation, the D-sub connector
end of the module is facing you.
5H 5L 20H 20L Interlock1
13 14 15 16 17
19H 19L 15H 15L Interlock 1
29 30 31 32
33
10L
NC NC NC NC
47 48 49
46 50
Description Pin
16H 37
16L 38
17H 23
17L 24
18H 43
18L 44
19H 29
19L 30
20H 15
20L 16
Bank 2
50-Pin D-Sub
Male Connector
Description Pin
COM1 H 7
COM1 L 8
Interlock 1 17
Interlock 1 33
Reserved 18
GND 34
No Connect 47
No Connect 48
No Connect 49
No Connect 50
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