Clear-Com Cellcom Instruction Manual download pdf (Page 35)

EF-701M INTERFACE 2-13

Simply connect the 4-wire audio and 4-wire data between EF-701M units utilizing this

cable. This will form a direct connection between the DB-15 connectors on a pair of

EF-701M units. The PL systems at each end of the cable will require their own power and

termination for their local channel.

Up to 5000 ft. (1.52 km) of CAT 3 or better cable, and possibly more, may be used to

connect between EF-701M units in this manner.

FIBER-OPTIC

Fiber optic transmission offers a number of advantages over copper:

• There is no susceptibility to electromagnetic interference.

• Fiber-optic cable is much lighter and more space efficient than copper, even for a single

channel.

• Transmission distance, in many cases, can be substantially longer.

• It is more difficult to eavesdrop on a fiber transmission.

Warning: Always use extreme caution with fiber-optic equipment. Never look directly into

the light port or into a connected cable with a unit powered up. Even if you

don’t see visible light, you could be exposing your eyes to invisible light from an

infrared laser. This can cause damage to your vision. Always observe all

manufacturer’s recommendations and warnings.

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Clear-Com Cellcom Instruction Manual Page 35