AT&T MERLIN LEGEND Release 2.0 Analog Multiline... User manual

Copyright © 1992 AT&T
AH Rights Reserved
Printed in U.S.A.
AT&T 555-620-116
Issue 1
October 1992
Ordering Information
To order copies of this document:
Call:
AT&T Customer Information Center on
800-432-6600
Write:
AT&T Customer Information Center
2855 North Franklin Road
P. 0, Box 19901
Indianapolis, IN 46219-1385
For assistance when installing or programming the system:
Call:
National Service Assistance Center (NSAC) at
800-628-2888 or your authorized AT&T dealer
Notice
While reasonable efforts were made to ensure that the
information in this document was complete and accurate at
the time of printing, AT&T can assume no responsibility for
errors. Changes or corrections to the information in this
document may be incorporated into reissues,
Trademarks
5ESS, ACCUNET, CONVERSANT, Definity, Magic On Hold,
MEGACOM, MultiQuest, MERLIN, and SYSTIMAX are
registered trademarks, and 4ESS, AUDIX Voice Power, FAX
Attendant System, MERLIN Attendant, MERLIN LEGEND,
MERLIN MAIL, MERLIN PFC, MLX-10, MLX-10D, ML)(-20L,
and MLX-28D are trademarks of AT&T in the U.S. and other
countries.
Mirage, StarSet, Supra, and Supra NC are registered
trademarks of Plantromcs, Inc.
PagePac is a registered trademark, and Powermate and
Zonemate are trademarks of DRACON, a division of Harris
Corp.

Contents
Release 1.1 Enhancements
Release 2.0 Enhancements
Design Benefits
Environmental Specifications
Control Unit Interfaces
Network Interface Requirements
FCC Registration
DOC Registration
Hardware and Software Capacities
Ordering Codes
Control Unit Modules
Adjunct Summary
Uninterruptible Power Source (UPS) Backup Times
Power Supply Unit Load Requirements
■ Unit Load Calculation Rules
■ Unit Load Rating of System Modules
■ Unit Load Rating of System Trunks, Telephones
and Adjuncts
System Feature Availability by Operating Mode
Telephone and Operator Console Features
Reference Documents
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Release 1.1 Enhancements
Release 1.1 includes all Release 1.0 functionality plus the following
enhancements:
Language selection allows the system to be programmed for prompts,
menus, and messages on MLX display telephones to appear in English,
French, or Spanish. Each of the following can also be programmed for
any of these languages, independently of the system language:
■ Individual extensions with MLX telephones
■ SPM
■ System programming reports
■ SMDR report headers
In addition, user and operator guides, quick reference cards, and
telephone tray cards are available in all three languages.
System operational enhancements include automatic selection of an SA
button when Conference is invoked (in Hybrid/PBX mode), prompting
through Conference setup (on MLX display telephones), relocation of the
More prompt on the display, additional Inspect capability, improvements
to system reports, and a log that records the last 20 times maintenance or
system programming has been accessed.
SPM enhancements include operation in English, French, or Spanish,
faster backup and restore, and automatic on-screen display of reports as
they are created.
Additional equipment includes the 8102 and 8110 analog voice
telephones, four headsets, two headset amplifiers, and a transparent
protective cover for the MLX- 10™ and MLX- 10D™ telephones.
PF registration number AS5USA-65646-PF-E is assigned by the FCC for
operating the MERLIN LEGEND™ Communications System in Hybrid/PBX
mode in the United States.
1

Release 2.0 Enhancements
Release 2.0 includes all Release 1.1 functionality plus the following
enhancements:
Programming enhancements include the following:
■ Extension Program Copy IS a new feature that reduces programming
time by allowing the use of any extension as a template for
programming another extension or block of extensions through
centralized programming.
■ Integrated Administration provides a single interface through Integrated
Solution Ill (IS-III) for programming entries common to the MERLIN
LEGEND Communications System and AUDIX Voice Power™.
■ Forced idle reductions keep system interruptions at a minimum. In
general, the smallest necessary component is forced idle during
programming activities. For example, renumbering a single extension
idles only one extension; loudspeaker paging port assignment idles only
one trunk. Only a few system-wide programming activities, such as
setting the system mode and system renumbering, idle the entire
system.
■ SPM provides a convert option to convert a Release 1.0 or Release 1.1
backup file to the format used by Release 2.0. This allows existing
system programming to be presewed when the system is upgraded to
Release 2.0.
System operational enhancements include the following:
■ Coverage VMS is a new feature [hat prevents incoming exlernal calls
from going to voice mail (All other Coverage remains active as
programmed.) The feature IS programmed extension-by-extension,
either through extension programming or through centralized
programming.
■ A Night Service group can be programmed to include a calling group
as a member, This allows a call thal receives Night Service treatment tc
be queued when all Night Service group members are busy or
unavailable
■ When AUDIX Voice Power or MERLIN MAIL™ sends a Leave Word
Calling message to an extcnslon, the sys[em Identifies the voice mail
syslem as Ihe sender of the message. AS a result, when the voice mail
subscriber uses the Return Call feature, the call goes to any available
voice mail port, not just to the specific port that generated the message
This improves access by reducing the chance of gcttlng a busy port.
■ Coverage receivers can call Coverage senders and have the call
receive Coverage treatmcnt, If a receiver calls a sender for whom he or
shc is covering, and the sender is busy or unavailable, the call
proceeds to other points of Coverage, It does not come back to the
receiver who originated the call.
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■ Enhancemets to display prompts tnclude automatic posting of a
Do Not Disturb message when a user activates the Do Not Disturb
feature, and confirmation messages when a user activates Hold,
Privacy, Saved Number Dial, and Transfer.
■ Direct Inward Dialing (DID) trunk emulation on a T1 facility provides
24 DID channels on a single 0S1 trunk interface, instead of requiring
24 separate physical trunks.
■ When the system is using Centrex services, Recall can be used on an
outside call on an SA or ICOM button to send a timed switchhook flash
to the host switch (on a Ioop-start trunk only).
FAX Attendant System™ is a new application for sending and receiving
fax messages; its interface is similar to the voice mail interface provided
by AUDIX Voice Power, FAX Attendant System, which co-resides with
AUDIX Voice Power on the IS-III platform, provides the following services:
■ Fax Call Answer receives and holds messages for subscribers whose
fax machines are busy or out of paper, This service also allows a
subscriber to have a personaI fax number without having a fax machine.
■ Fax Mail allows subscribers to create and use fax distribution lists, send
and receive fax messages, and record personal greetings for incoming
fax calls.
■ Fax Response prompts callers to select and receive faxes from a
customer-created menu of choices, using touch-tone responses.
408 GS/LS-MLX module is a new interface that combines four ports for
ground-start or loop-start trunks and eight ports for MLX telephones on a
single module in the control unit.
Primary Rate lnterface (PRI) enhancements include the following:
■ Connectivity to the 5ESS ® Generic 6
■ Multiple Incoming calls to directory number
■ Call-by-Call Service Selection
■ Authorization Code handling for FTS2000
■ Station ID (SID) as Calling Party Number for Automatic Number ID (ANI)
Maintenance enhancements include the following:
■ Descriptions of module test failures in clear English
■ Optional printing of hard copy of error logs
■ Display that correlates extension numbers 10 slot/port and logical ID
■ Display showing which slots, trunks, and extcnsions are maintenance-
busy
■ Internal digital switching element (DSE) Ioopback test for all modules
■ B-channel loopback test for MLX modules
■ B-channel line or call service states display
■ Error log entries for dual-port RAM errors
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Design Benefits
Modular components allow easy, cost-effective growth in both size and
function. For upgrades from the MERLIN®system family of products, all
analog MERLIN system telephones, as well as wiring, can be reused. For
upgrades from the MERLIN II Communications System, certain trunk and
station modules can also be reused.
Menu-driven system programming maintains the customer’s command
of business operations.
Built-in 1200-bps modem allows fast access to the system by customers
AT&T personnel, or authorized dealers from a remote location for system
programming and maintenance.
Flexible mode of operation saves upgrade costs by allowing system
configuration in one of three modes: Hybrid/PBX, Key, and Behind Switch
Connectivity to other systems in the Behind Switch mode optimizes
existing resources by allowing the system to work as part of another
MERLIN LEGEND Communications System, System 25, System 75,
System 85, Definity® 75/85, or other communications system, The control
unit can connect to another system’s control unit via an off-premises
telephone (OPT) line or an analog or digilal tie trunk.
Digital 2.048-MHz bus supplies a 64-kbps channel on each of the
216 time slots.
68000 Motorola CPU running at 10 MHz with zero wall states provides
fast system performance.
Memory data retention saves time by ensuring that system and extension
programming information is retained for 12 to 30 days, depending on the
system configuration, in case of power failure or system shutdown,
Integrated voice and data capabilities allow users to talk while
transmitting data at speeds up to 64 kbps.
DS1 interface can be configured for connection of either T1 or PR1 for
basic call control with the 4ESS™ or 5ESS PRI service specifications.
Basic Rate Interface (BRl) S/T protocol supports premier digital multiline
(MLX) telephones with superior display capabilities and supports the
7500B Data Module tor the connection of adjuncts.
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Environmental Specifications
Control Unit
Fully loaded basic carrier 451b (20.4 kg) 14” W x 23” H x 12” D
(35.6cm x 58.4 cm x 30.5 cm)
Fully loaded 2-carrier 90 lb (40.8 kg) 25” W x 23” H x 12 D
(63.5cm x 58.4 cm x 30.5 cm)
Fully loaded 3-carrier 1351 b(61.2 kg) 37” W x 23” H x 12” D
(94 cm x 58.4 cm x 30.5 cm)
Mean Time Between Failures 2.1 years
(mean or average time the system is expected to
operate before any type of failure occurs)
Mean Time Between Outages 4.0 years
(mean or average time the system is expected to
operate before a failure affecting more than 25% of
extensions or lines for more than 15 seconds occurs)
Backboard
■ Without SYSTIMAX® 6’ W x 3’ H x 3/4” D (182,9 cm x 91.4 cm x 1.9 cm)
■ With SYSTIMAX
7’ W x 4’ H x 3/4’’ D(2l3.4cmx 121.9cmx 1.9 cm)
Backboard Mounting Hardware Requirements
Wood surface Wood screws
Concrete surface, brick, cmdcr block Masonry anchors
Plaster, plasterboard Toggle bolts
Sheet-metal surface Sheel-metal screws
■ Hardware should have a combined pullout force of 650 lb (294.8 kg),
■ When mounting to sheet-metal walls, attach to structural members.
Location
■ Within 5’ (1.5 m) of dedicated AC power outlet (1 plug per carrier)
■ Within 1000 cable feet (304.8 m) of telephones
Heat Dissipation
Fully loaded basic carrier 500 Btu/hr (35 callsec)
Fully loaded 2-carrier 1000 Blu/hr (70 cal/sec)
Fully loaded 3-carrier 1500 Btu/hr (105 cal/sec)
Power Requirements
Basic carrier 117VAC 60 Hz ± 5% 3A
2-carrier 117VAC 60 Hz ± 5% 6A
3-carrier 117VAC 60 Hz ± 5% 9A
5

Temperature/Humidity Range
40°- I04°F (4°–40°C); optimum temperature 60°F (16°C)
20% –80% relative humidity
Ventilation
1“ (2.5 cm) on right and left sides; 12” (30.5 cm) above and below
Radio Frequency Interference (RFI) Tolerance
1 V/m
Caution
■ Do not use switch control on AC outlet tor control unit.
■ Use approved ground (AC receptacle for 3-prong plug).
■ Do not install control unit outdoors
■ Do not place control unit near extreme heat (furnaces, heaters, attics,
or direct sunlight).
■ Do not expose control unit to devices that generate electrical
interference (such as arc welders or motors).
■ Do not place anything on top of carriers.
■ Do not install control unit under any device thal may drip fluid, such as
an air conditioner.
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Control
Interface
BRI S/T*
Unit Interfaces
Signaling Audio/
Channel Data
Applications Rate Rate
Control unit to MLX telephone
16 kbps (D)
64 kbps (B)
7500B Data Module 64 kbps (B
and D)
DS1
Control unit to the following 64 kbps
services:
■
■
T1
Emulated tle trunk
Emulated DID
Emulated Ioop-start
Emulated ground- start
PRI services
ACCUNET® switchcd digital service
MEGACOM® WATS
MEGACOM 800
Software Defined Network (SDN)
MultiQuest® 900 number scrvlces
Connectivity to 5ESS Generic 6
Multiple incoming calls to
directory number
Call-by-Call Service Selection
Authorization Code handling
for FTS2000
SID-ANI as Calling Party Number
RS-232-C Control unit to PC connected to 2400 bps 2400 bps
system programming port oror
1200 bps 1200 bps
Control unit to AT&T 1200 bps 1200 bps
model 572 printer, PC with CAS,
or CAT connec led to
RS-232-C port
ATL
Control unit 10 analog multiline 40 kHz 300
telephone 3400 Hz
Tip/Ring Control unit to single-line
telephone, modem, fax, OPT, or
voice mail system
* Call handling derived from CCITT recommendation Q.931
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