Avaya B5800 User Manual download pdf (Page 69)

Analog phone barrier boxes

Where analog phone extensions are required in another building, phone barrier boxes and

protective earth connections must be used .

Warning:

PHONE (POT) ports on the front of control units must not be used for extensions that are

external to the main building.

• The correct B5800 Branch Gateway barrier boxes must be used. These modules have been

designed specifically for the signalling voltages used by the B5800 Branch Gateway system:

• Only the B5800 Branch Gateway phone barrier box should be used with phone V1

modules.

• Only the B5800 Branch Gateway phone barrier box V2 should be used with phone V2

modules.

• No other type of analog phone barrier box should be used.

• Where more than 3 barrier boxes are required in a building, they must be rack mounted

using a barrier box rack mounting kit. See

Rack mounting barrier boxes on page 70.

• A maximum of 16 barrier boxes can be used with any phone module.

• The phone barrier box does not connect the ringing capacitor in phone V1 modules.

Main Building Barrier Box Secondary Building

• RJ11 — Connect to PHONE

(POT) port on the Phone

module using cable supplied

with the barrier box.

• RJ45 — Connect to the

secondary building barrier

box via primary protection in

both buildings.

• RJ11 — Connect to analog

phone. Cable not supplied.

• RJ45 — From main building

via primary protection in

both buildings.

Out-of-building connections/lightning protection

Implementing the Avaya B5800 Branch Gateway November 2011 69

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Avaya B5800 User Manual Page 69