Transceiver connector
(25 pin female "D" connector on rear panel)
Pin
Name
Description of function
Level
1 Ground
Ground
0V
2
Tx Data
RS-232 data output
True RS-232
3
Rx Data
RS-232 data input
True RS-232
4
5
6
7
RS-232 Gnd
RS-232 Ground
0V
8
ALC In
Ext. ALC from Linear Amp
0-10V
9
PTT Out
PTT Output
Active low 0V
10
11
Bal. Tx Audio In
Balanced Tx audio input (with pin 24)
600
Ω
-24dBm to 0dBm
12
Bal. Rx Audio Out
Balanced Rx audio output (with pin 25)
600
Ω
-6dBm to +9dBm
13 Ground
Ground
0V
14
15
16
17
18
19
20
21
22
23
+13.8 V Fused Input
+13.8V Input (+11VDC to +15VDC)
13.8V
24
Bal. Tx Audio Outpout
Balanced Tx audio output (with pin 11)
600
Ω
-24dBm to 0dBm
25
Bal. Rx Audio Out
Balanced Rx audio output (with pin 12)
600
Ω
-6dBm to +9dBm
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