Nortel Networks BCM1000 - Manual (Page 216)

216 Chapter 12 Installing the Companion system
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The recommended wire gauge is 6 AWG (4 mm). Connect the ground lead to the building
ground. Do not connect to a ground rod or series of ground rods. If you cannot connect the
ground lead to the building ground, connect the ground lead to the metal frame of the building.
The connection must be no more than 2 m (6.5 ft.) to 3 m (10 ft.) long.
You can connect the ground lead to the 120 V ac conduit (which is connected to the building
ground). However, Nortel Networks does not recommend using the 120 V ac conduit.
3 Route and connect the coaxial cable from the outdoor antenna to the surge protector.
4 Route and connect the coaxial cable from the surge protector to the appropriate base station
BNC connector.
Note: The total length of the coaxial cables from the outdoor antenna to the base station
must not exceed 10 m (33 ft.).