User Guide

After Sales
Technical Documentation
Cable Junction Box JBH–1
Original, 05/94Page 8
Coax Coil Cord Mini RF Connector
Signal Name Pin/Conn Notes
RF Conductor Centre Pin RF Signal from phone to
external Antenna
RF Ground Shield RF Signal Ground
Connection
Mechanical Characteristics
Unit Dimensions
(mm)
(WxHxD)
Weight
(g)
Cable Length
(metres)
Material/
Colour
JBH–1 49x22x54 150 Antenna:0.30
0.015
Audio:
1.450.05
JBH–1
Housings:
CYCOLOY C
1000HF–96127
Colour: Warm
Black
Functional Description
The DC8 PCB Module, located inside the accessory connector, contains a
Reed Switch, to signal to the phone whether or not it is located in the MBH–9
In–Car Holder; a connector (X001) which plugs into the bottom of the phone;
and a zero Ohm resistor which acts as a link, since the DC8 PCB (DCX2) is
used in another application.
The RF signal from the phone to the External Antenna or Booster is achieved
using a direct connection between the X001 Connector and the mini UHF
connector via the Coax Coil Cord. The mini UHF Connector mates with the
External Antenna Connector or the Booster XRH–1 Cable.
Schematic
The top–level schematic for JBH–1 is shown overleaf.