DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112 Issue 5
May 1998
Install and Wire Telephones and Other Equipment
Page 5-110Add ISDN — PRI
5
Add ISDN — PRI

North American

Use a TN767C/D/E DS1 or a TN464C DS1/E1 circuit pack for the assignment of a
signaling link and up to 23 ISDN — PRI Trunk Group members. A TN768, TN780,
or TN2182 Tone-Clock circuit p ack is required to provid e synchronization for the
DS1 circuit pack. A TN765 Processor Interface circ uit pack is req uired for use
with the TN767C DS1 circuit pack when PRI is activated.
As an option to the TN768 or TN2182 Tone-Clock, a TN780 Tone-Clock circuit
pack (installed in the PPN) can interface external Stratum 3 synchronization for
DS1 connections.

European

A TN464C DS1/E1 circuit pack is required for the assignment of the 2 signal ing
channels and up to 30 ISDN—PRI Trunk Group members. Each E1 span
provides 32 ports. Excep t for North American private-network ap p lications, a
TN780, TN2182, or TN419B Tone-Cloc k c ircuit pack nor mally provides
synchronization for the DS1/E1 circuit pack. A TN765 Processor Interface circ uit
pack is required for use with the TN464C DS1/E1 circuit pac k when PRI is
activated.
As an option to the TN2182 or TN419B Tone-Clock, a TN780 Tone-Clock circuit
pack (installed in the PPN) can interface external Stratum 3 synchronization for
DS1 connections.
Service Interruption
Since the addition of ISDN—PRI requires a service interruption, notify the
customer in advanc e as to when the add ition will be c arried out.
Disable Alarm Origination
1. Enter change system-parameters maintenance and press En ter.
2. Set the Alarm Origination Activated field to n.
!CAUTION:

If you do not disable Alarm Orig ination, the system may generate

alarms, resulting in unnec essary trouble ticke ts.

3. For some releases of system software, disable

Cleared Alarm Notification

and

Restart Notific ation

before submitting the form.