
Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
DR4 Driver/Receiver Board E-11
DRB I/O Channels (J201)
Table E-5: DR4, DRB I/O Channels (J201)
Name
Pin No.
Description
CH33-CH48
Various
(Bi-directional) High speed channels
SIG_GND
Various
Signal Ground reference
AUX1 B
34
(Bi-directional) General Purpose TTL I/O pin
AUX2 B
36
(Bi-directional) General Purpose TTL I/O pin
AUX3 B
38
(Bi-directional) General Purpose TTL I/O pin
AUX4 B
40
(Bi-directional) General Purpose TTL I/O pin
AUX5 B
42
(Bi-directional) General Purpose TTL I/O pin
AUX6 B
44
(Bi-directional) General Purpose TTL I/O pin
AUX7 B
84
(Bi-directional) General Purpose TTL I/O pin
AUX8 B
86
(Bi-directional) General Purpose TTL I/O pin
Table E-6: DR4 Pinout by Pin Number (DRB)
Pin No.
Signal
Pin No.
Signal
1
SIG_GND
51
SIG_GND
2
CH33
52
CH49
3
SIG_GND
53
SIG_GND
4
CH34
54
CH50
5
SIG_GND
55
SIG_GND
6
CH35
56
CH51
7
SIG_GND
57
SIG_GND
8
CH36
58
CH52
9
SIG_GND
59
SIG_GND
10
CH37
60
CH53
11
SIG_GND
61
SIG_GND
12
CH38
62
CH54
13
SIG_GND
63
SIG_GND
14
CH39
64
CH55
15
SIG_GND
65
SIG_GND
16
CH40
66
CH56
17
SIG_GND
67
SIG_GND
18
CH41
68
NC
19
SIG_GND
69
SIG_GND
20
CH42
70
NC
21
SIG_GND
71
SIG_GND
22
CH43
72
NC
23
SIG_GND
73
SIG_GND
24
CH44
74
NC