Handset Interface; Analog 2-Wire Interfaces - Capsat TT-3080A User Manual

Technical Specifications Technical
9.1.3

Handset interface

The pin out of the handset interface connector is as follows:
Pin no. Pin Function
1 + earpiece
2 - earpiece
3 + microphone
4 - microphone
5 + 5 V
6 GND
7 Serial Data
8 - Serial Data,
9 Buzzer
10 H key
9.1.4

Analog 2-wire interfaces

The pin out of the two 2-wire interfaces are as follows:
Pin no. Pin Function
1 Not used
2 Not used
3 Signal A (Ring)
4 Signal B (Tip)
5 Not used
6 Not used
Page 9-2 Page 9-2
Signal Direction
Output
Output
Input
Input
Output
Input
Bidirectional
Bidirectional
Output
Input
Signal Direction


Input / Output
Input / Output


13Jun00 13Jun00