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Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
DR4 Driver/Receiver Board E-9
DR4 Signal Description
Figure E-5: J200 and J201 Connectors
DRA I/O Channels (J200)
Table E-3: DR4, DRA I/O Channels (J200)
Name
Pin No.
Description
CH1-CH24
Various
(Bi-directional) High speed channels
AUX1 A
34
(Bi-directional) General Purpose TTL I/O pin
AUX2 A
36
(Bi-directional) General Purpose TTL I/O pin
AUX3 A
38
(Bi-directional) General Purpose TTL I/O pin
AUX4 A
40
(Bi-directional) General Purpose TTL I/O pin
AUX5 A
42
(Bi-directional) General Purpose TTL I/O pin
AUX6 A
44
(Bi-directional) General Purpose TTL I/O pin
AUX7 A
84
(Bi-directional) General Purpose TTL I/O pin
AUX8 A
86
(Bi-directional) General Purpose TTL I/O pin
Table E-4: DR4 Pinout by Pin Number (DRA)
Pin No.
Signal
Pin No.
Signal
1
SIG_GND
51
SIG_GND
2
CH1
52
CH17
3
SIG_GND
53
SIG_GND
4
CH2
54
CH18
5
SIG_GND
55
SIG_GND
6
CH3
56
CH19
7
SIG_GND
57
SIG_GND
8
CH4
58
CH20
9
SIG_GND
59
SIG_GND