Specifications

FCS1362 Page 40 of 74 © Nov 2010
4.4.5. Distribution boxes and transceivers
Where a distribution box and or transceiver are provided as part of the radio equipment they should be
securely fitted as per section 2.6
Allowance should be made for adequate ventilation for the equipment, especially with higher power
transceivers.
Where the equipment requires it consideration should be given to SIM card access.
Transceivers should not be operated without a connection to a safely installed antenna as per section 4.2.
The various ancillary and auxiliary components should be connected to the distribution box or transceiver
as detailed in the manufacturer's instructions and following guidance in section 4.3 on cabling.
4.4.6. Remote controls
Any remote controls, such as PTT, should be safely operable from a normal driving position as per
section 2.5 and 3.2.
4.4.7. External alert facility
Where an external alert facility (an external sounder) is provided the alert must not sound like a bell, gong
or siren. This is to comply with current Road Vehicle Construction and Use regulations.
4.4.8. Installation of auxiliary mobile equipment
This equipment is in addition to the normal radio communications equipment installed within the vehicle.
In many cases it uses the existing voice transceiver to communicate information. Examples of auxiliary
mobile equipment are given below:
• Interface
• Modem
• Data terminal equipment
o Fax
o PC or PDA
o Printer
o MDT / MDU
• Tracking and alarm systems
• Navigation systems
• Camera
• Switches and sensors
• Wireless audio connections
All auxiliary equipment installed should be suitable for use in a mobile environment, see section 2.1.
Care should be taken when interfacing with the radio equipment to ensure both systems operate correctly.
All auxiliary equipment should be securely and safely mounted as per section 2.6
It is recommended auxiliary equipment and wiring is kept away from the antenna cable of the mobile
radio equipment.
4.4.8.1. Auxiliary equipment power requirements
In some cases auxiliary equipment can be powered from its own internal battery supply.
Where the equipment requires a power supply, then a separate fused supply should be installed as per
section 4.6.
When ancillary equipment draws power directly from the main equipment
• consideration must be given to the rating of fuses and the existing wiring providing power to ensure
each will handle the additional current demand.