Nortel Networks NN43001-106 User Manual

Page 491

491

B34 Codec Static Loss Plan
Downloading

Contents

This section contains information on the following topics:

"Feature description" (page 491)

"Operating parameters" (page 493)

"Feature interactions" (page 494)

"Feature packaging" (page 496)

"Feature implementation" (page 497)

"Feature operation" (page 498)

Feature description

This feature provides software support for Static Loss Plan Downloading to
the B34 codec. A codec is a device on an Intelligent Peripheral Equipment
(IPE) card which encodes incoming transmission data from analog to digital,
and decodes outgoing transmission data from digital to analog.

The B34 codec is a four-channel codec providing 32 programmable loss
values in 0.5 dB steps in both the transmit and receive directions. The B34
allows transmission parameters, which can be downloaded to the IPE unit,
to be changed by software. Since the loss and level requirements differ
from country to country, this allows system compliance to the different
transmission plans used in the world markets using a single codec.

The selected coded levels are downloaded to each unit based on the
unit’s port type classification at initialization, configuration, or enable time.
This is referred to as static downloading. These levels will be used for
all call connections involving that unit. The B34 Codec Static Loss Plan
Downloading feature is used on systems where a single loss setting is
sufficient for all types of call connections.

Nortel Communication Server 1000

Features and Services - Book 1 of 6 (A to B)

NN43001-106

01.04

Standard

Release 5.0

27 July 2007