Install And Administer Isdn - Bri; Task List: Installing Isdn - Bri; Bri Terminating Resistor Installation - Avaya MCC1 Installation And Upgrades

Install Additional Hardware

Install and Administer ISDN - BRI

Install and Administer ISDN - BRI
Return to Task List
NOTE:
Adding ISDN - BRI requires a service interruption when you add packet bus support and
you install TN570Ds as part of that support. Give the customer advance notice of the
scheduled addition. See
See

BRI Terminating Resistor Installation

adapters, and multipoint installation distances.

Task List: Installing ISDN - BRI

Perform these tasks to install and administer ISDN - BRI:
1
Add Circuit Packs (ISDN BRI)
2
Install Cables (ISDN BRI)
3
Enter Added Translations (ISDN BRI)
4
Resolve Alarms
5
Save Translations (ISDN BRI)
BRI Terminating Resistor Installation
The resistors balance the cable plant between the receiver and the transmitter on the interface. When
using the TN2198 ISDN-BRI 2-Wire U Interface circuit pack, an NT1 is required. A terminating resistor
is always required near the terminal when the BRI S-type interface circuit pack (TN556D BRI 4-Wire S-
NT Line circuit pack) is used (see 5ESS Switch Integrated Services Digital Network Customer Premises
Planning Guide).
The resistor is built into the NT1 and can be one of three values, depending on the configuration and the
distance from the NT1 to the ISDN terminal. The resistor value is controlled from the NT1. A terminating
resistor adapter may be needed near the terminal and can be placed in the satellite closet or work location.
NOTE:
The 440A4 terminating resistor and 110RA1-12 terminating resistor block are UL listed.
Most new installations are the 110RA1-12 terminating resistor block.
See these BRI terminating resistor topics:
•
Important Warning for Telephone Wiring
•
Terminating Resistor Adapter and Block
•
Installing Multipoint Adapters
•
Basic Multipoint Installation Distances
570
Add Packet Bus Support
on page 570 for an important warning, details on the resistors,
on page 576
on page 577
on page 577
on page 577
on page 577
on page 571
on page 571
on page 573
on page 576
on page 588 for further information.
SI Installation and Upgrades
June 2004