Comtech EF Data HPCST-5000 - Manual (Page 135)

High-Power C-Band Satellite Terminal Theory of Operation
Rev. 0 6–9
6.1.5.5 Keypad Display, 24-Pin (12 x 2) Ribbon Connector (J5)
The front panel/display keypad is an optional feature which allows the user to configure
and monitor status of the terminal locally.
All functions are also accessible from the remote port.
When this option has been installed, the 24-pin ribbon connector will be routed from J5
of the M&C board to the keypad/display assembly.
Refer to Table 6-5 for pin assignments.
Table 6-5. Keypad Display, 24-Pin Ribbon Connector (J5)
Pin # Name Description
1 /A0 Address Data Line 0 Inverted
3 /A1 Address Data Line 1 Inverted
5 A2 Address Data Line 2
7 A3 Address Data Line 3
9 A4 Address Data Line 4
11 A5 Address Data Line 5
13 /D0000 Address D000 Inverted
15 /BFR READ Buffered Read Inverted
17 /BFR WRITE Buffered Write Inverted
19 SPARE
21 /KB INTRPT Reserved For KB Interrupt
23 GND Ground
2 +5V +5V
4 SPARE
6 BFRD AD0 Buffered Address Data Line 0
8 BFRD AD1 Buffered Address Data Line 1
10 BFRD AD2 Buffered Address Data Line 2
12 BFRD AD3 Buffered Address Data Line 3
14 BFRD AD4 Buffered Address Data Line 4
16 BFRD AD5 Buffered Address Data Line 5
18 BFRD AD6 Buffered Address Data Line 6
20 BFRD AD7 Buffered Address Data Line 7
22 SPARE
24 SPARE