Avaya BCM50 Guia de Configuração descarregar pdf (Página 97)

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Chapter 8 Lines overview 97

Networking Configuration Guide

• Avoid putting unsupervised loop start lines in a line pool. These lines can become unusable,

especially when a remote user uses the line pool to make an external call.

• To assign line pool access to telephones, select Configuration > Telephony > Dialing Plan >

Line Pools.

• To assign system-wide line pool access codes, select Configuration > Telephony > Dialing

Plan > General (not applicable to Bloc pools).

• A telephone can be administered to search automatically for an idle line from several lines that

appear on the telephone. Assign a line pool as the prime line. When the user lifts the receiver

or presses Handsfree, any one of the lines, if idle, can be selected by Automatic Outgoing Line

selection.

• Changes in the settings for trunk type on a system that is in use can result in dropped calls.

• When assigning lines to line pools, consider your network configuration. You can create a

unified dialing plan by assigning lines to the same location to the same line pool on each of

your systems. For example, if system A and system B each have TIE lines to system C, assign

the TIE lines to pool D on each of the systems. You cannot assign target lines to a line pool, as

they are incoming-only.

Using loss packages

Use the loss package settings to select the appropriate loss/gain and impedance settings for each

line. The setting is based on the terminating switch type and the distance between BCM and the

terminating switch.

When measuring the distance from BCM to CO and from BCM to PBX systems, use 600 ohms as

the termination resistance setting.

A loss of 4 dB corresponds to a cable length of approximately 2700 m (9000 ft).

Table 12 Loss package settings

Loss

Package

Receive

Loss

Transmit

Loss

Impedance Distance to switch/cable loss/terminating

switch

Short CO 0 dB 3 dB Short Short/<2 dB/BCM to CO

Medium CO 0 dB 0 dB TIA/EIA 464 Medium/>2 dB and <6 dB/BCM to CO

Long CO -3 dB 0 dB TIA/EIA 464 Long/>6 dB/BCM to CO

Short PBX 0 dB 0 dB Short Short/<2 dB/BCM to PBX

Long PBX -3 dB 0 dB TIA/EIA 464 Long/>2 dB/BCM to PBX

Note: Loss packages are not supported on the 4X16 combo.

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