beautypg.com

Figure 64 example 5, digital connection to the co – Nortel Networks NN43001-301 User Manual

Page 165

background image

Description

165

Figure 64
Example 5, digital connection to the CO

In this example, digital connections to the Central Office do exist. When a
second Digital loop from the CO becomes available, it can be used as a
Secondary Clock Source in case the Primary Source fails.

Slaves can track on each other as a secondary source since the chances of
both links to the Central Offices going down at the same time are minimal.

All Central Offices must have a path back to the same stratum 1 source.

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301

02.03

Standard

Release 5.5

7 December 2007

Copyright © 2003-2007, Nortel Networks

.