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GTR8000 Analog Simulcast Cable Assembly Signal/Pin Assignments
GTR 8000 Connections
Line 2 RX Audio -
Output
Line 2 RX Audio +
Output
Radio Chassis Ground
N/A
General TX Data + (TX Audio)
Input
General TX Data - (TX Audio)
General TX Data - (TX Audio)
Input
Input
PL Signal +
Input
PL Signal -
Input
External PTT Low Active
Input
MUX - Audio/PTT Dist - Voter - 1118 Connections
Pair 1
26
1
Pair 2
27
Line 2 RX Audio -
2
Line 2 RX Audio +
Pair 3
28
3
Pair 4
29
4
Pair 5
30
5
Pair 6
31
6
Pair 7
32
7
System Ground from Radio
Pair 8
33
8
Pair 9
34
General TX Data + (TX Audio)
9
9
General TX Data - (TX Audio)
General TX Data - (TX Audio)
Pair 10
35
PL Signal +
10
PL Signal -
Pair 11
36
11
Pair 12
37
12
Pair 13
38
13
Pair 14
39
14
Pair 15
40
15
External PTT Low Active
Pair 16
41
16
Pair 17
42
17
Pair 18
Pair 18
43
43
18
Pair 19
44
19
Pair 20
45
20
Pair 21
46
21
Pair 22
47
22
Pair 23
48
23
Pair 24
49
24
Pair 25
50
25
To Voter via MUX RX Audio Input -
To Voter via MUX RX Audio Input +
To J4 Pin 1 on Spectracom 1118
From Convex 2241 via MUX TX Audio Output +
From Convex 2241 via MUX TX Audio Output -
From Convex 2241 via MUX TX Audio Output -
From Spectracom 1118 J4 Pin 6 CTCSS Output +
From Spectracom 1118 J4 Pin 7 CTCSS Output -
From Spectracom 1118 J4 Pin 9 Delayed PTT Output
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