Clocking Requirement; Connecting Mgc Dect Clock Reference Cable; Pre Requisites - Avaya Nortel Communication Server 1000 Reference

NT5D33 and NT5D34 Lineside E1 Interface cards

Clocking Requirement

The clocking for NT5D34 Lineside E1 Interface card in CS 1000 system is as follows:
• Lineside E1 cards are clock master of their E1 link, which has a clock accuracy
requirement of +/-50ppm
• MGC does not provide a backplane clock with +/-50ppm accuracy at freerun
• An accurate clock source is needed for Lineside E1 application
The following are the two methods to bring an accurate clock source to MCG:
• Configure a digital trunk card with Clock Controller within the same cabinet/chassis as
Lineside E1 cards.
With Clock Controller enabled, in both freerun or locked state, an accurate clock will be
provided to MGC.
• Use an MGC DECT Clock Reference Cable (NTDW67AAE5) to bring a clock source from
other Communication Server 1000 cabinet/chassis that has a Central Office Link.
With accurate clock source available, MGC locks to the reference and provide an
backplane clock as accurate as the clock source.

Connecting MGC DECT Clock Reference Cable

The following sections elaborate on how to connect an MGC DECT Clock Reference Cable.

Pre requisites

The pre requisites for connecting an MGC DECT Clock Reference Cable are the following:
MGC DECT Clock Reference Cable --- NTDW67AAE5.
220 Circuit Card Reference
Comments? infodev@avaya.com
July 2011