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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Prior Releases Features and Enhancements
Page xlvii
Release 4.0 Enhancements (March, 1996)
New Control Unit Modules
Release 4.0 supports a new NI-BRI line/trunk module and a higher-capacity
tip/ring module.
800 NI-BRI Module
This new module connects NI-BRI trunks to the MERLIN LEGEND system for
voice, high-speed data, and video transmission.
016 Tip/Ring Module
This new module supports a 200-extension dial plan by providing 16 ports for
tip/ring devices. Applications that use a tip/ring interface can connect to this
board. All 16 ports can ring simultaneously. Four touch-tone receivers (TTRs)
are included on the module as well. The module’s ringing frequency (default 20
Hz) can be changed through programming to 25 Hz for those locations that
require it.
Downloadable Firmware for the
016 and NI-BRI Modules
The Personal Computer Memory Card International Association (PCMCIA)
technology introduced in Release 3.0 continues to support these two new
boards for installation and upgrade in Release 4.0. A Release 3.0 or later
processor is required for PCMCIA technology.
Support for 2B Data Applications
A Lucent Technologies-certified group and desktop video application can use
two B-channels to make video/data calls when connected to a single MLX
extension jack programmed for 2B data. The 2B data devices must be equipped
with ISDN-BRI interfaces. NI-1 BRI, PRI, or T1 Switched 56 facilities support 2B
data communications at 112 kbps (using two 56-kpbs channels) or 128 kbps
(using two 64-kbps B-channels). This feature is available for Hybrid/PBX and
Key modes only.