Keysight Technologies 34922A User Manual page 38

Low Frequency Multiplexer Modules
Bank 2
41
1
Reserved
GND
34
Desc
41
42
43
44
45
46
47
48
49
50
Keysight 34921A-34925A Low Frequency Multiplexer Modules User's Guide
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COM COM
42 43 44 45 46 2H 2L
2 3 4 5 6 7 8
61 62 53 54 73 74 65
18 21 22 24
19 20 23 25
51 52 71 72 63 64 55
35 38 39 40 41
36 37
Pin Desc Pin
1 51 35
2 52 36
3 53 21
4 54 22
5 55 41
6 56 42
9 57 27
10 58 28
13 59 45
14 60 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-002 (for 1-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 connector end of the
47 48 67 68 49 50 79 80
9 10 11 12 13 14 15 16
66 57 58 77 78 69 70 Interlock 2
27 28 29 30 31 32
26
Reserved
56 75 76 59 60
42 43 44 45 46 47 48 49
Desc Pin Desc
61 19 71
62 20 72
63 39 73
64 40 74
65 25 75
66 26 76
67 11 77
68 12 78
69 31 79
70 32 80
Bank 1
Bank 2
module is facing you.
50-Pin D-Sub
Interlock 2
Male Connector
17
33
50
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
37