Merlin 3070 Guide d'installation et d'utilisation
MERLIN
TM
COMMUNICATIONS SYSTEM
SERVICE AND MAINTENANCE MANUAL:
MODELS 1030 AND 3070
Table of Contents
Page
Introduction 1
Functional Overview 3
Isolating and Correcting Troubles 21
A. Trouble on One Telephone
1. Ringing
2. Dialing
3. Hearing
4. Lights
5. Features
6. Accessories
7. Miscellaneous
A1-1
A2-1
A3-1
A4-1
A5-1
A6-1
A7-1
B. Trouble on Several Telephones
1. Ringing
2. Dialing
3. Hearing
4. Lights
5. Features
6. Accessories
7. Entire System Down
8. Miscellaneous
B1-1
B2-1
B3-1
B4-1
B5-1
B6-1
B7-1
B8-1
Diagnostics Module
CIBs
Index
NOTE:
Pages within the individual trouble sections are numbered in an unusual way to make
this manual easy to update. In page number A1-4, for instance, the A indicates the
section—
“A. Trouble on One Telephone.” The 1 indicates the first trouble category
within that section—Ringing. The 4 indicates the fourth page of ringing symptoms.
Refer to the letters and numbers on the tab dividers for help in finding page numbers
listed in the index.
i
Introduction
Even the magic of the MERLIN™ communications system sometimes fails. The problem
may be a user error, installation problem, or faulty component. Usually you can correct the
problem on the spot without returning any equipment for maintenance exchange.
The Service and Maintenance Manual: Models 1030 and 3070 is intended for use by both the
customer and services technician. This troubleshooting manual is divided into five parts:
●
●
●
●
●
Functional Overview describes each communications system component and its use.
Isolating and Correcting Troubles includes step-by-step procedures to help you isolate a
problem to a user error or a specific component. Most procedures require no tools. A few
procedures require a screwdriver or a basic Touch-Tone or rotary telephone (a Power
Failure Transfer Telephone will work).
CIB 3018: Diagnostics Module describes how to use the optional Diagnostics Module.
CIBs includes copies of customer instruction booklets shipped with the components. The
CIBs describe the functional features and installation of each component.
Index lists problems, features, and components. It will help you find the information you
need quickly.
1
2
Functional Overview
This section describes the components of the MERLIN communications system and explains
how they fit together in a typical installation. Every MERLIN system installation will include
the major components shown on page 5.
Additional equipment may be attached to the MERLIN communications system to provide
expanded features and services. See pages 14 to 18 for information about optional voice
terminal accessories and control unit accessories.
Further information on many of the components (including installation instructions) is available
in the customer instruction booklets (CIBs) included under the CIB tab divider. The CIB
number for each component is noted near its illustration in this section.
3
BASIC CONFIGURATION
A.
B.
C.
D.
E.
Control unit: The control unit is
the heart of the MERLIN system.
It provides the power and
intelligence for all voice terminals
as well as the connection
between voice terminals and
outside lines. Program memory
for the MERLIN system resides
in the control unit.
Model 1030 is the basic control
unit (the lower half of the unit
illustrated) and has a capacity of
10 lines and 30 voice terminals or
telephones. Model 3070, with the
expansion unit mounted above
the basic control unit as
illustrated, has a capacity of 30
lines and 70 voice terminals or
telephones.
Network interface: The network
interface connects the control unit
and the outside lines. The most
common network interface is the
25-pair amphenol connector
(RJ21) illustrated. However, the
network interface may be
different (see the Installation
Guide: Models 1030 and 3070).
Jack field: The jack field connects the control unit and modular jacks for the voice
terminals. Optional attachments (extra alerts, paging systems, etc.) may also connect to
the control unit through the jack field.
Modular jack: Each voice terminal wiring run from the jack field terminates in a modular
jack. Every voice terminal has a separate modular jack.
Voice terminal: The voice terminal provides not only basic telephone functions, but also
access, usually by programmable buttons, to the advanced feature software residing in
the control unit. Basic Touch-Tone and rotary-dial telephones may also be used with the
MERLIN system. These telephones access system features by means of dial codes.
4
CONTROL UNIT
The control unit provides power for all voice terminals and most accessories. All outside lines
and all voice terminals and telephones connect to the control unit, which contains the
microprocessor and modules for all the advanced features available with the MERLIN system.
Model 1030 consists of a basic control unit (A). Behind the removable front panel (B) of the
control unit, the modules (C) are arranged vertically across the width of the unit. Each vertical
position serves the particular function defined on the colored band on the base (D). Tabs (E)
on the individual modules are color-coded to the appropriate positions. Module positions in
the basic control unit are numbered on the colored band (from left to right) I through I5.
Positions reserved for optional features and services may be vacant and will have protective
plastic covers.
In Model 3070, an expansion unit (F) is mounted on top of the control unit. Additional
modules, located behind the removable front panel of the expansion unit, increase the
capacity of the system to up to 30 lines and 70 voice terminals or telephones. Module
positions in the expansion unit are numbered 16 through 28. Wiring connecting the two units
runs inside the cabinets behind the modules.
Modules are electrically connected to the control unit via pins located at the rear of the module
slots. Abrupt insertion or removal of modules may cause pins to bend, triggering problems
within the control unit. (For any problem common to several voice terminals, it is advisable to
examine the pins.)
5
POWER MODULE
The Power Module, color-coded red, occupies position 1 and supplies power to the entire
Model 1030 control unit. In Model 3070, a second Power Module in position 16 of the
expansion unit supplies power for lines CO through C4 and D0 through D4 and intercoms 40
through 69. (The Line Module description on page 12 explains how line designations are
determined; the Voice Terminal Module description on page 13 explains how intercom
designations are determined.) In systems with more than 20 lines or more than 60 voice
terminals or telephones, a Supplementary Power Module occupies position 27 in the
expansion unit and supplies power to lines E0 through E4, lines F0 through F4, and intercoms
70 through 79.
Circuit Breakers: Provide
current surge protection for the
control unit.
Ring Gen. jack: Provides
connection for Ring Generator
Unit needed for basic
telephones.
Auxiliary Power jacks:
Provide connections for
Auxiliary Power Units needed
for systems with many
accessories or 34-button
deluxe voice terminals.
Power receptacle: Provides
connection for ac power cord
plug.
Power light (green): Goes on
when power is on.
On/Off switch: Turns ac
power on and off; resets
control unit when switches on
Processor Module are
changed.
6
PROCESSOR MODULE
The Processor Module, color-coded violet, occupies position 2. This module contains the
microprocessor which runs all the programs stored in the Feature Module (see page 8) of the
MERLIN
system.
Switches A through H: Each switch on
the Processor Module aligns with a label
on the Feature Module in position 3 when
both modules are in place. The function of
each switch is indicated by the
corresponding label on the Feature
Module. (Refer to the Administration
Manual: Models 1030 and 3070 associated
with the Feature Module for specific
information about the switches.)
Warning light (red): When power is
turned on, the warning light goes on briefly
(while the module runs certain internal
diagnostics) and then goes out. It remains
on if there is a problem with the control
unit, for example, if a module is not
completely plugged in. It goes on again if
a problem occurs while the system is
running.
7
FEATURE MODULE
Feature Module 1, color-coded orange, occupies position 3. Feature Module 1 is the first in a
series. This module contains all programs for the MERLIN system features on ROM (read-
only memory) chips. The individual voice terminal has no memory or programming capabilities
in itself. A voice terminal, when connected to the MERLIN system, can be programmed to
perform specific functions (for example, automatic dialing of home number). However, the
actual program instructions are stored in the Feature Module, not in the voice terminal. The
system will not operate without a Feature Module in position 3.
Labels on the Feature Module indicate the
functions of the corresponding switches on
the Processor Module in position 2.
Numbers on the top five positions are
intercom designations (see Voice Terminal
Module description, page 13, for
discussion on how intercom designations
are determined).
Refer to the Administration Manual:
Models 1030 and 3070 for specific
information about the switch definitions on
Feature Module 1.
8
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1
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1
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