Functional Description - Nortel Communication Server 100 Manual

IPE functions
IPE functions are performed by the Remote Carrier Interface card and line
cards in the Carrier Remote IPE module or Carrier Remote IPE cabinet.
The system provides these IPE functions:
•
assigns timeslots to line cards to establish call connections
•
communicates with the Local Carrier Interface card MPU to provide
Remote IPE configuration and maintenance functions
•
monitors the link integrity and transmission quality and notifies the
Local Carrier Interface card, which provides automatic carrier switching
from the failed primary carrier to the spare carrier 2 if the link is set up
with the spare carrier option
•
provides Card-LAN management by polling IPE cards and reporting
their status
•
controls local station ringing functions
•
provides a serial port for local configuration and maintenance functions
•
provides local and remote loopback testing and fault isolation functions

Functional description

The system is controlled by the CPU. The CPU performs read/write
functions on the network control and status registers and communicates
with the network equipment over the CPU bus. Through these messages,
the CPU monitors the system status, provides call connection sequences,
monitors traffic activities, downloads application software and configuration
data, and performs system administration and diagnostics.
Carrier Remote IPE utilizes T1 or E1 carrier links to provide the same
subscriber functionality at the remote site as at the local site.
Figure 5 "Carrier Remote architecture" (page 26)
Remote architecture. It shows the Local Carrier Interface card, the Remote
Carrier Interface card, and the internal bus structure that connects them to
other system components.
Figure 5 "Carrier Remote architecture" (page 26)
interface circuits to provide an understanding of the internal system
communication and call processing activities through the T1 or E1 carrier
link.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
Functional description 25
illustrates the Carrier
shows the carrier