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Low Frequency Multiplexer Switch Modules 4
34980A User’s Guide 125
Bank 2
For orientation, the D-sub connector
end of the module is facing you.
Bank 2
Bank 1
45H41H 41L 36H 36L 42H 42L
COM
2L 38H 38L 44H 44L 39H 39L
COM
2H37H 37L 45L 40L40H
1 2 3 4 5 6 7 89 1011121314151617
18 19
20
47H51H 51L 46H 46L 52H 52L 47L 43H 43L 69H 69L 54H 54L 49H 49L 55H 55L Interlock 2
21
22 23
24 25
26
27
28 29
30 31
32 33 34 35
36
37
38 39
GND 61H 61L 56H 56L 57H 57L 62H 62L 48H 48L 63H 63L 59H 59L 64H 64L 50H 50L Interlock 2
40
41
52 43
44
45 46
47
48
49 50 51
52
53 54 55
56
57 5958
60
61 62
63 64
65
66
67 68
69 70
71 72 73 74
75
76
77 78
GND 67H 67L 66H 66L 68H 68L 53H 53L 58H 58L 70H 70L 65H 65L 60H 60L
NC NC
Description Pin Description Pin Description Pin Description Pin Description Pin Description Pin
36H 3 43H 29 50H 57 57H 45 64H 55 COM2 H 9
36L 4 43L 30 50L 58 57L 46 64L 56 COM2 L 10
37H 7 44H 13 51H 21 58H 69 65H 73 Interlock 2 39
37L 8 44L 14 51L 22 58L 70 65L 74 Interlock 2 59
38H 11 45H 17 52H 25 59H 53 66H 63 GND 40
38L 12 45L 18 52L 26 59L 54 66L 64 GND 60
39H 15 46H 23 53H 67 60H 75 67H 61 No Connect 77
39L 16 46L 24 53L 68 60L 76 67L 62 No Connect 78
40H 19 47H 27 54H 33 61H 41 68H 65
40L 20 47L 28 54L 34 61L 42 68L 66
41H 1 48H 49 55H 37 62H 47 69H 31
41L 2 48L 50 55L 38 62L 48 69L 32
42H 5 49H 35 56H 43 63H 51 70H 71
42L 6 49L 36 56L 44 63L 52 70L 72
WARNING
As a safety feature, interlock 2 pins (39 and 59) on Bank 2 must be
shorted to enable the Bank 2 Analog Bus relays to close. The
optional 34924T terminal block 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.