TABLE 2 - UDC PIN FUNCTIONS
PIN
NAME
INPUT OR
OUTPUT
USE
1
GROUND -------
Case
Ground
3
UDC RX AUDIO
Output
Test Point For Speaker Audio
4
SWBATT
Output
Switched Accessory Power
5
EXT PTT
Input
External Microphone PTT Input
6
TX DATA
Input
For Programming
7
RX DATA
Output
For Programming
8
SPARE
9
UDC VOLT
-------
Option/Accessory Sense Pin
10
T/R
Output
Low = Transmit, High = Receive
11
UDC MUTE
Output
Low = Audio Muted
12
EXT MIC HI
Input
External Microphone Audio Input
13
EXT EMER
Input
Lanyard Connection
34
UDC DISCR
Output
Test Point For RX Audio
Figure 5 - UDC Pin-Out
LBI-38378D
10
