Instruction manual

Overview
System Overview
A MERLIN LEGEND BRI system has specific requirements and components
different from a standard MERLIN LEGEND system.
Hardware and Software Requirements
A MERLIN LEGEND system must have an 800 CO-BRI module to connect to
BRI facilities. This module is the interface that connects BRI lines from a 5ESS
®
G8 central office to the MERLIN LEGEND system. In addition, the Processor
module must contain the 2. B Feature module.
NOTE:
If a new MERLIN LEGEND BRI system has been purchased, the 2.B Feature
module already resides in the Processor module. If a MERLIN LEGEND system
is upgraded to a MERLIN LEGEND BRI system, the 2.B Feature module must
be installed in the existing Processor module. (See “installing the 2.B Feature
Module” in Chapter 2.)
The MERLIN LEGEND BRI system supports connectivity to a 5ESS Custom
Central Office switch servicing the AT&T Custom BRI protocol. The 5ESS central
office (CO) must be running 5ESS Generic 8 Custom (5E8) or later software.
The MERLIN LEGEND system must be a base of Release 2.0 or higher to be
upgraded to MERLIN LEGEND BRI software release 2.B, and to operate
properly with an 800 CO-BRI module. However, a 2.B Feature module can be
used in a Release 1.0 Processor module if the Release 1.0 software is
upgraded by using the Convert utility of the System Programming and
Maintenance (SPM) software.
Ordering BRI Lines
BRI services and features ordered by the customer are configured into a
package by the CO. This package is called a User Service Order Profile
(USOP). A USOP contains the information needed to provide BRI service from
the CO to the MERLIN LEGEND system.
Along with a USOP, the CO provides up to two Service Profile Identifiers
(SPIDs) to each BRI line, or Digital Subscriber Line (DSL), coming into the
MERLIN LEGEND system at the time of subscription. A SF’ID associates a line
on the system with a USOP. The MERLIN LEGEND line’s Directory Number is
usually a subset of the SPID.
1-4 System Overview