Cradle/Handset Interface - KVH Industries TracPhone F55 Installation Manual

10.3 Cradle/Handset Interface

C ra d le /H a n d s e t
The BDU has two 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. Maximum cable length BDU to Handset/Cradle
is 40 meters.
Pin number
1
2
3
4
5
6
7
8
9, 10, 11, 12, 13, 14, 15
Shield
Chapter 10: Hardware Interfaces
Pin function
Audio Out Hi
Audio Out Lo
Audio In Hi
Audio In Lo
+28 V DC
GND
SDA
SDB
-
GND
Cradle/Handset Interface
5 1
15 11
55