User Guide

Technical Documentation
Mobile Base MCH–8
Page – 5
Original 50/96
5 M2BUS Serial mbus data between handportable,
accessories and junction box
6 HOOK NC
7 PHFS NC
8, 16 VC Supply voltage/charging current for
handportable 12 V ±1 V or 800 mA ±70 mA
9 GND Ground
10 XEAR Audio signal from handportable to junction box,
current sink from this pin to handportable turns
on +5 V supply voltage in junction box
11 DSYNC NC
12 RDA NC
13 BIND
14 VF NC
15 DCLK NC
Functional Description
The DH1 module contains filtering for signals between handportable and
junction box/booster. Handportable is connected to DH1 by connector
X100 and junction box and booster by connector X101. RF signal from
handportable to mobile antenna or booster is connected by the special
RF cable.