Installation manual

Cradle/Handset HW Interfaces

Apr 2004 47

Appendix B.2 Cradle/Handset

The transceiver has one 4-wire Cradle/Handset ports with

RS-485 data control. The handset can be used to setup the

terminal and also can be used to make or receive phone

calls. The connector outline and pin assignments are

described in the figure and table below.

1115

Pin Number Pin Function

1 Audio Out Hi

2 Audio Out Lo

3 Audio In Hi

4 Audio In Lo

5 +28VDC

6 GND

7 SDA

8 SDB

9, 10, 11, 12, 13, 14, 15 -

Shield GND

Maximum cable length unit to Handset/Cradle is 40 meter.