Engineering guidelines
35
•
Uses elastic store buffers to store two frames of carrier data stream
to compensate for possible information propagation delays between
different carriers in the link. This allows for proper timeslot alignment of
all the carrier links on the IVD bus.
•
Identifies card and firmware versions, which are stored in the
EEPROM.
•
Monitors transmission quality of T1 or E1 carrier links. If the
transmission is degraded or fails, the Remote Carrier Interface card
automatically transfers to the spare link, if equipped.
Engineering guidelines
General system engineering guidelines for CS 1000M and Meridian 1
Large Systems are described in Communication Server 1000M and
Meridian 1 Large System Planning and Engineering (NN43021-220) ().
The following information deals specifically with engineering guidelines for
the Carrier Remote IPE planning and implementation.
Carrier Remote IPE capacity
The local system’s physical capacity depends on the system configuration
and size. Large Systems are designed to provide port capacities from tens
of ports to thousands of ports. These ports are normally local; however,
by implementing Carrier Remote IPE, some of these ports are located at
one or more remote sites.
The overall system capacity does not change by installing Carrier Remote
IPE. The difference between a system with Carrier Remote IPE and
without Carrier Remote IPE is the distribution of line cards (that is, the
subscriber loops). Carrier Remote IPE allows distribute the intelligent
peripheral equipment to be distributed at long distances from the system
and provide the same functions and features to remote subscribers as to
local subscribers.
Note:
System port capacity can be affected by the capacity of the Local
Carrier Interface card, which supports only one IPE module instead of
two IPE modules, as supported by the standard superloop network card.
Call blocking grade of service for the remote voice and data terminals
depends on the number of active carriers in the link.
The Carrier Remote IPE capacity can be tailored according to port capacity
requirements at the remote site. When planning a Carrier Remote IPE
site, determine the number of IPE cards that are required to support
the existing traffic needs and future requirements. Based on these
requirements and the equipment location preference, there are two Carrier
Remote IPE hardware options available:
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01
4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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