AT&T MERLIN 820 User manual

AT&T
MERLIN
®
COMMUNICATIONS SYSTEM
INSTALLATION GUIDE:
MODEL 820

Table of Contents
Page
Introduction
Getting Started
Preparing the Network Interface
Extend the Network Interface to the Jack Field
Test the Outside Lines
Installing the Control Unit
Position the Control Unit
Insert the Modules and Cartridges
Connect the Control Unit to the AC Outlet
Connect the Outside Lines to the Control Unit
Voice Terminal Wiring
Jack Field Connection
Direct Connection
Connecting the Voice Terminals
Prepare the Voice Terminals
Connect Each Voice Terminal to the System
Test Each Voice Terminal for a Dial Tone
Label the Voice Terminals with Intercom Numbers
Installing Accessories
Cartridges
Accessory Equipment
Power Accessories
System Tests
Test the Voice Terminal Jacks for a Dial Tone
Place an Outside Call
Place an Intercom Call
Test Each Line Number
What’s Next?
System Changes
Adding an Outside Line
Adding a Voice Terminal
Moving a Voice Terminal
Changing Touch-Tone/Rotary Service
Troubleshooting
Troubleshooting Table
General Test
Appendix A: Interference Information
Appendix B: FCC Registration and Repair Information
Index
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Introduction
This installation guide tells you how to install and test your
MERLIN® communications system, Model 820. It leads you step by step
through system installation, from a pre-installation checklist to system tests.
You should perform the steps in the order in which they are presented because
many of the earlier steps prepare the system for the later steps.
When you complete the steps in this guide, you will be ready to customize the
system to meet the needs of your business. If you have a Feature Package, refer
to the administration manual that comes with it for administration and program-
ming instructions. Your system may not be fully operable until you have pro-
grammed and administered it.
This guide consists of the following sections:
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Getting Started tells you how to prepare for system installation.
Preparing the Network Interface shows you how to prepare the connec-
tion to your outside telephone lines.
Installing the Control Unit explains how to set up and connect the
system’s control unit.
Voice Terminal Wiring tells you how to install the wiring for your voice ter-
minals
(MERLIN system telephones).
Connecting the Voice Terminals tells you how to connect your voice ter-
minals to the system and test them.
Installing Accessories describes some of the accessories that you may
want to add to your system and explains when it may be appropriate to
install these accessories.
System Tests provides tests to make sure you’ve installed your system
properly.
What’s Next? refers you to documents that describe how to customize and
use your system.
System Changes describes how to rearrange or alter your system once
it is in place.
Troubleshooting isolates and identifies specific problems that could arise
during system installation, and suggests solutions to basic problems.
The steps in this guide are numbered in order of performance. To visualize a
step as it is described, refer to the pictures accompanying the text. The numbers
in the drawings correspond to the step numbers in the text.
2

Getting Started
This guide assumes the tasks on the following list have been completed. Review
the list carefully. If you have not completed the tasks on the list, you should do
so now.
●
●
Check the items in your shipment against your copy of the order form.
Make sure the items and quantities agree. Save the instructions that come
with each component, and also keep the packing boxes just in case you
have to return components under warranty.
Get acquainted with the system environment.
Review the planning sheets you drew up when you ordered the system.
Confirm the voice terminal and control unit locations, and make sure the
control unit location meets the following environmental standards:
—
Operating temperatures: 40 to 104°F (4 to 40°C).
—
Humidity: not to exceed 80%.
—
Ventilation: Leave 6 inches of space above and to the sides of the
control unit. Keep the control unit away from sources of extreme heat
(furnaces, heaters, attics, or direct sunlight). Do not stack multiple
control units in rooms that are not air-conditioned; install them side
by side at least 6 inches apart.
—
Airborne contamination: Do not expose the control unit to moisture,
corrosive gases, dust, chemicals, or similar substances.
If the control unit location does not meet these standards, your warranty
may become void.
3

●Become familiar with the MERLIN system.
Review the drawing of a simple MERLIN system configuration, opposite
page, and note how components are related to one another.
●
1
2
3
4
5
6
7
8
9
10
NOTE:
The control unit and the cartridges and modules it contains pro-
vide the power and the intelligence for all voice terminals and
accessories.
Modular jumper cords connect the control unit to jacks in the jack
field.
The jack field serve as an interface between the control unit and
the building wiring.
Building wiring ties the whole system together, connecting the
voice terminal locations to the control unit location.
Modular wall jacks connect the voice terminals to the building
wiring.
Modular voice terminal cords connect the voice terminals to the
modular wall jacks.
Voice terminals provide telephone functions and access to the
advanced features in the control unit.
The network interface, shown here extended to the jack field, pro-
vides the connection to the local telephone company lines.
Line cords connect the control unit to the network interface or, as
shown, to the jacks in the jack field for the outside telephone lines.
The ac outlet is the electrical power source for the control unit.
Modular jumper cords are identical to modular voice terminal
Make sure your system wiring is in place.
You must have wiring that connects your voice terminal locations to your
control unit location. If your voice terminal locations are close enough to
your control unit to make direct connection practical, you are probably plan-
ning to connect your voice terminals directly to the control unit with modular
voice terminal cords and, if necessary, modular voice terminal extension
cords. If you are planning to connect your voice terminals directly to the
control unit, this guide tells you how to do so at the appropriate place in
the installation sequence.
If conditions at your business make direct connections between your voice
terminal locations and your control unit location impractical, then you have
connected the locations through the building wiring. You may have had
the necessary wiring professionally installed, or perhaps you did the wir-
ing yourself following the instructions that came with the Wiring Installa-
tion Kit. In either case, you should now have building wiring that runs from
the voice terminal locations to the control unit location. The wiring runs
should end in modular wall jacks at the voice terminal locations and in a
group of jacks mounted in jack panel boxes (the “jack field”) at the con-
trol unit location. Inside the right door (the one with the handle) of each
jack panel box you should find a label indicating the wiring run number
and endpoint location (for example, “w1 Reception area”) for each jack
in the jack field.
cords. They have different names in this guide to reflect their different func-
tions and locations in the system.
4

1
10
2
9
Jack field
7
Voice terminal
Building
wiring
6
5
8
AC outlet
Control Unit
Modular jumper cord
Line cord
Network
Interface
3
4
Modular voice terminal cord
Modular wall jack
5

You must also have a network interface that links your system to the local
telephone company’s lines. A telephone company representative should
have installed the necessary outside telephone lines and labeled the net-
work interface to indicate the telephone number for each outside line.
Depending on the type of interface provided by the telephone company,
your system may require additional wiring running from the network in-
Control unit
terface to the jack field.
If you had your building wiring and jack field professionally installed, you
probably had the wiring from the network interface to the jack field installed
at the same time (if it was necessary). But if you prefer to install the wiring
from the network interface to the jack field yourself, this guide tells you
how to do so in “Preparing the Network Interface:” page 7.
The drawing, top right, shows direct connections between a voice terminal
and the control unit, and between the network interface and the control
unit. The drawing, bottom right, shows a voice terminal connected to the
control unit through the building wiring and a jack field. It also shows ad-
ditional wiring extending the outside lines from the network interface to
Network
interface
Modular voice
terminal cord
●the jack field.
To comply with FCC regulations, notify your local telephone company of
the following before permanently connecting your system to their lines:
— System registration number: AS 593M-13529-KF-E
—
Ringer equivalence number: 0.8A
—
Telephone numbers of the lines to which you are connecting your
system
Control unit
Jack field
25-Pair
cable Modular voice
terminal cord
Network
interface
Modular wall jack
Building Wiring
6

Preparing the Network Interface
The local telephone company should have installed a network interface with
1-line jacks (RJ11-type), 2-line jacks (RJ14-type), or a multiline connector
(RJ21-type) for connecting your MERLIN system to your outside telephone
lines. The drawing, right, shows the three types of interfaces and the 2-line
adapter (267C) for the 2-line network interface jack. The table, on page 8, tells
you what to do next depending on the type of network interface you have.
1-Line jack (RJ11-type)
2-Line jack
(RJ19-type)
2-Line adapter
66-Type block with
Multiline connector (RJ21-type)
7

If the Network
Interface
And Do This
has a 1-line jack
each jack is labeled Go on to “Test the Outside Lines,”
(RJ11-type) for
with its telephone page 13.
each outside number
line each jack is not 1. Label each jack with its
labeled with its telephone number from the list
telephone number provided by the local telephone
company.
2. Go on to “Test the Outside
Lines,” page 13.
has 2-line jacks each jack is labeled 1.
Plug a 2-line adapter (267C) into
(RJ14-type) for
with the telephone each jack.
the outside numbers for its two 2. Go on “Test the Outside Lines,”
lines outside lines
page 13.
each jack is not 1. Label each jack with the two
labeled with the telephone numbers for its out-
telephone numbers side lines from the list provided
for its two outside by the local telephone
lines company.
2.
Plug a 2-line adapter (267C) into
each jack.
3. Go on to “Test the Outside
Lines,” page 13.
has a 50-pin
the interface is label-
Go on to the instructions for extend-
connector ed with the telephone ing the network inteface to the jack
(RJ21-type) car-
numbers for the out- field, immediately following this
rying the out- side lines
table.
side lines the interface is not 1. Label the interface with the
labeled with telephone numbers for the out-
telephone numbers side lines.
for the outside lines 2. Go on to the instructions for ex-
tending the network interface to
the jack field, immediately
following this table.
8

EXTEND THE NETWORK INTERFACE TO THE JACK FIELD
You need the following to extend the network interface to the jack field:
●4-line adapter
If you have more than four outside lines, you need two 4-line adapters.
●Jack panel box
●Green-on-white label sheet
●Single-ended 25-pair connectorized cable
The drawing, right, shows a 4-line adapter (Z610A), a 25-pair connectorized
cable, and a jack panel box (Z122C). A drawing of the green-on-white label sheet
appears on page 12. You also need a jacket-stripping tool to slit the jacket on
the 25-pair cable and a cable termination tool to punch the wires down onto
the block(s) on the 4-line adapter(s). Your equipment supplier or technical con-
sultant can help you obtain these items. 4-Line adapter
25-Pair connectorized cable
Jack panel box
9