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MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
System Components
Page 3-12Control Unit
3
Table 3–1. Line/Trunk and Extension Modules
Module Line/Trunk Description
008 none Capacity: 8 analog extension jacks
Supports: Analog multiline telephones
008 MLX none Capacity: 8 digital extension jacks, each with 1 or 2 extensions (each
extension is assigned an individual extension number)
Supports: MLX extensions, including:
— MLX voice only
— MLX voice with Voice Announce to Busy
— MLX voice and ISDN terminal adapter
— MLX voice and Multi-Function Module (MFM) with T/R adjunct
— ISDN terminal adapter only
— Access device for data communications between a PC on the system
and a high-speed Internet connection, connection to remote node LAN
access server, or ISDN router*
†
— CTI (Computer Telephony Integration) link
†
‡
— Videoconferencing systems using one jack and 2B data feature, MLX
telephone with some video systems*
†
008 OPT
§
none Capacity: 8 T/R extensions on 2-way voice transmission path with
support for telephones with message-waiting lights, 2 TTRs
Supports: On-premises or off-premises single-line telephones
012 none Capacity: 12 T/R extensions on 2-way voice transmission path with
support for telephones with message-waiting lights, 2 TTRs
Supports: Single-line telephones; Lucent Technologies Attendant;
MERLIN Mail
®
VMS; Intuity™ CONVERSANT
®
; T/R adjuncts (such as
answering or fax machine); analog data devices (such as modems)
016* none Capacity: 16 T/R extensions on 2-way voice transmission path with
support for telephones with message-waiting lights, 4 TTRs
Supports: Single-line telephones; Lucent Technologies Attendant;
MERLIN Mail VMS; CONVERSANT; T/R adjuncts (such as answering or
fax machine); analog data devices (such as modems).
100D T1 or PRI Capacity: 24 channels (“virtual” lines/trunks) for voice and analog data
or for digital data only (T1); or 23 B-channels for voice and data and 1
channel used for signaling (PRI). Supports networking in Release 6.0
and later systems, Hybrid/PBX mode only.
Supports: See “100D Module” on page 3–7
for details. T1 emulates 24
lines/trunks: loop-start, ground-start, tie, and Direct Inward Dial (DID;
Hybrid/PBX mode only); can also supply subscriber services. In
Release 4.0 and later, T1 can also provide high-speed data
communications and digitally emulated tie trunks for data
communications. PRI supports subscriber services, allows high-speed
digital data communications, and includes special features.
Continued on next page