Keysight Technologies 34921A User Manual page 36

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 34923T-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.
Bank 2
Description Pin
21H 1
21L 2
22H 3
22L 4
23H 5
23L 6
24H 9
24L 10
25H 13
25L 14
As a safety feature, interlock 2 pins (17 and 33) on Bank 2 must be shorted to
WARNING
enable the Bank 2 Analog Bus relays to close. The optional 34923T-001 (for
2-wire) shorts these pins for you. This feature protects inadvertent routing of
high voltages from the Analog Buses to the D-sub connector of the module.
36
21H 21L 22H 22L 23H 23L
1 2 3 4 5
Reserved 31H 31L 27H 27L 37H
21
18 19 20 22
GND 26H 26L 36H 36L 32H
34 35 36 37 38 39
Description Pin
26H 35
26L 36
27H 21
27L 22
28H 41
28L 42
29H 27
29L 28
30H 45
30L 46
COM COM
2H 2L 24H 24L 34H 34L 25H
6 7 8 9 10 11
37L 33H 33L 29H 29L 39H 39L
23 24 25 26 27 28
32L 28H 28L 38H 38L 30H 30L
40 41 42 43 44
Description Pin
31H 19
31L 20
32H 39
32L 40
33H 25
33L 26
34H 11
34L 12
35H 31
35L 32
25L 40H 40L Interlock 2
12 13 14 15 16 17
35H 35L Interlock 2
29 30 31 32 33
Reserved
45 46 47 48 49 50
Description Pin
36H 37
36L 38
37H 23
37L 24
38H 43
38L 44
39H 29
39L 30
40H 15
40L 16
Keysight 34921A-34925A User's Guide
50-Pin D-Sub
Male Connector
Description Pin
COM2 H 7
COM2 L 8
Interlock 2 17
Interlock 2 33
GND 34
Reserved 18
Reserved 47
Reserved 48
Reserved 49
Reserved 50