LBI-38378

TABLE 2 - UDC PIN FUNCTIONS

PIN

 

NAME

INPUT OR

USE

 

 

 

OUTPUT

 

 

 

 

 

 

 

 

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

10

Page 10
Image 10
GE LBI-38378C manual UDC PIN Functions Name Input or USE Output