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Input and Output Connectors
Two 25-position D-subminiature connectors, one male and one female, are
mounted on the 7K Main Board for interfacing to external devices. J2 is a
female connector (DB25S). J3 is a male connector (DB25P). Use the mating
connectors supplied with the 7K for your cable assemblies.
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Input and Output Connectors
Controller Main Board
J2 Female Connector
receiver #1 audio input
receiver #1 COR
receiver #2 COR
receiver #3 COR
receiver #1 CTCSS decoder
receiver #2 CTCSS decoder
receiver #3 CTCSS decoder
receiver #2 audio input
CTCSS frequency #1
transmitter #1 PTT
transmitter #2 PTT
CTCSS frequency #2
CTCSS frequency #3
transmitter #1 audio output
transmitter #2 audio output
CTCSS frequency #4
CTCSS frequency #5
CTCSS frequency #6
ground
ground
ground
ground
CTCSS encoder in
CTCSS encoder out
receiver #3 audio input
J3 Male Connector
logic input #1
logic input #2
logic input #3
logic input #4
logic input #5
logic input #6
phone line busy input
logic output #1
logic output #2
logic output #3
logic output #4
logic output #5
logic output #6
logic output #7
phone line busy output
FC1 (reserved)
FC2 (reserved)
FC3 (reserved)
+5V test
+10V test
+12V test
ground
ground
ground
ground
Installation
C-15
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