Keysight Technologies 34922A User Manual page 34

Low Frequency Multiplexer Modules
Bank 2
21H 21L 22H 22L 23H
1 2 3
Reserved 31H 31L 27H
20
18 19
GND 26H 26L 36H 36L 32H
34 35 36
Desc
21H
21L
22H
22L
23H
23L
24H
24L
25H
25L
Keysight 34921A-34925A Low Frequency Multiplexer Modules User's Guide
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COM COM
23L 2H 2L 24H 24L 34H
4 5 6 7 8 9 10 11
27L 37H 37L 33H 33L 29H 29L 39H 39L 35H 35L Interlock 2
21 23 24 25 26 27
22
32L 28H 28L 38H 38L 30H 30L
37 38 39 40 41 42 43 44
Pin Desc Pin
1 26H 35
2 26L 36
3 27H 21
4 27L 22
5 28H 41
6 28L 42
9 29H 27
10 29L 28
13 30H 45
14 30L 46
As a safety feature, interlock 2 pins (17 and 33) on Bank 2
must be shorted to 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.
For orientation, the D-sub connecto
end of the module is facing you.
34L 25H 25L 40H 40L Interlock 2
12 13 14 15 16 17
28 29 30 31 32 33
Reserved
45 46 47 48 49 50
Desc Pin Desc
31H 19 36H
31L 20 36L
32H 39 37H
32L 40 37L
33H 25 38H
33L 26 38L
34H 11 39H
34L 12 39L
35H 31 40H
35L 32 40L
Bank 1
Bank 2
50-Pin D-Sub
Male Connector
Pin Desc Pin
37 COM2 H 7
38 COM2 L 8
23 Interlock 17
2
24 Interlock 33
2
43 GND 34
44 Reserved 18
29 Reserved 47
30 Reserved 48
15 Reserved 49
16 Reserved 50
33