Hardware Reference Manual
MCU500 Mobile Locator/Control Unit
8
Revision 1.01
100-00191
Amps. Ensure that the cable ratings selected match the switched current.
See section 4 for the complete description of the pin-outs of the remaining pins
on the Molex connector
3.3 Connection to radio communications equipment
In the vast majority of cases the radio communications equipment will present a
standard 9-way female (DB9F) connector, or will have a special cable which ends
in a standard 9-way female connector. Where the radio has a standard 9-way
connector, a standard RS232 cable (male to female - straight through) can be
used to connect COM2 of the MCU500 to the radio device. Thorcom can supply
this cable if required, Thorcom part number 70-00167.
If the manufacturer of the radio device provides a special cable from the radio
transceiver to a PC/laptop serial port, this cable can probably be used with the
MCU500. (The 9-way ports on the MCU500 are pin-compatible with standard PC
serial COM ports).
Please consult sections 4 and 8 regarding pinouts of the connector and jumper
settings and/or contact Thorcom for availability of ready made connectors.
3.4 GPS antenna selection
The MCU500 has an SMB RF connector on the front panel for connection to a
GPS antenna. The GPS receiver is qualified for use with three antennas supplied
by Thorcom. Other GPS antennas may be used (see 3.4.2 for technical
requirements).
3.4.1 Standard GPS antennas
A range of GPS antennas are available from Thorcom, these are manufactured
by Trimble and have been formally qualified for use with the GPS receiver
module inside the MCU500.
Type
Description
Part No.
Hard
mount
Antenna for permanent installation on the roof of a vehicle or
other flat/horizontal surface. Requires single 18mm hole. TNC
RF connector. Requires separate RF cable to radio modem (see
table below).
50-00001