User's Manual

Table Of Contents

EX7100 Technical Manual - Installation of Antenna and Equipment

The arrester must have a direct earth connection and must be mounted at either the base

of the antenna mast or where the coax cable enters the building. For further detail on

mounting the antenna, refer to the documentation that accompanies it.

Note: Ensure that any coaxial connectors exposed to the weather are adequately

protected with suitable weatherproof tape that completely seals the connector from

moisture.

DC Power Input

The EX7100 terminal is supplied with two variants of internal power supply:

> 10.8 VDC – 30 VDC Input

> 30 VDC – 60 VDC Input

If the terminal is to be powered by an existing DC power supply, ensure the voltage

supplied by the power supply system falls within one of the ranges detailed above.

Note: The terminal has a built-in sensing circuit and will not operate if the supply voltage

or polarity is incorrect.

DC Input cabling should be capable of carrying 15 Amps @ 12V, 7.5 Amps @ 24V, and

4.0 Amps @ 48V. The maximum

permitted voltage drop in the cable is 200mV.

Note: The terminal requires an external fuse (not supplied

) within the DC Input cabling.

Fuse ratings vary depending on the nominal DC input voltage used:

Nominal DC Input Voltage Fuse Rating

12 V DC 60 Amp HRC type

24 V DC 30 Amp HRC type

48 V DC 20 Amp HRC type

HRC fuses should be used with a minimum current breaking capacity of 5000

Amps (as lead acid batteries are likely to be used to back up the DC supply)

NOTICE

Supply power to this equipment must be provided via an approved

power supply whose output voltages are in accordance with the

Safety Extra Low Voltages (SELV) limits as specified in IEC950.

Failure to operate this equipment with this type of power supply

would void safety approvals