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Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
DR8 Driver/Receiver Board G-7
DR8 Signal Description
Figure G-4: J200 and J201 Connectors
DRA I/O Channels (J200)
Table G-3: DR8, DRA I/O Channels (J200)
Name
Pin No.
Description
CH1-CH32
Various
(Bi-directional) High speed TTL channels
SIG_GND
Various
Signal Ground reference
AUX1 A
34
(Bi-directional) General Purpose 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, 50
Ω series
AUX6 A
44
(Bi-directional) General Purpose TTL I/O pin, 50
Ω series
AUX7 A
84
(Bi-directional) General Purpose TTL I/O pin, 50
Ω series
AUX8 A
86
(Bi-directional) General Purpose TTL I/O pin, 50
Ω series
AUX9+ A
88
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX9- A
89
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX10+ A
90
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX10- A
91
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX11+ A
92
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX11- A
93
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX12+ A
94
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
AUX12- A
95
(Bi-directional) General Purpose ECL I/O pin, 51.1
Ω to -2V
PBUT A
46
(Bi-directional) Probe Button Input
PMODE A
47
(Output) Probe Support Output
BCLK-A
96
(Output) Reserved