AT&T MERLIN 410 User manual

MERLIN
COMMUNICTIONS SYSTEM
SERVICE MANUAL
MODELS 206 AND 410
American Bell
Advanced Information Systems
An AT&T Company

SERVICE MANUAL
MERLIN
✽
COMMUNICATIONS SYSTEM
MODELS 206 AND 410
* Trademark of AT&T Co.
©1983 Western Electric
All Rights Reserved
Printed in U.S.A.
Issue G, August 1983 999-501-135 AB

CONTENTS
INTRODUCTION
HOW TO USE THIS MANUAL
PREINSTALLATION
INTRODUCTION
IMPORTANT TELEPHONE NUMBERS
GETTING STARTED
A. Checking the Floor Plan
B. Checking the Shipment
C. Getting the Tools You Need
CIB CROSS REFERENCE
INSTALLATION
INSTALLING THE CONTROL UNIT
Environmental Requirements
A. Positioning the Control Unit
B. Installing the Cartridges
C. Supplying Power to the Control Unit
D. Connecting the Control Unit to the Network Interface
E. Setting the Control Unit Switches
“Tone-Pulse” Switch
“Ringing” or “Outward Calls” Switches
INSTALLING THE CORDS/CABLES
A. Installing the Voice Terminal Extension Cords
B. Voice Terminal Cabling
Getting Started
Planning and Arranging the Control Unit and Jacks
Installing the Cable
Labeling the Cables
Installing the Jacks at the Control Unit Location
Fastening the Cable(s)
Installing the Jacks at the Voice Terminal Location
C. Installing the Voice Terminals
Getting Started
Assembling the Voice Terminals
TESTING PREPARATION
1
3
3
3
4
4
5
5
11
13
13
14
14
15
15
15
19
19
20
20
20
21
22
23
23
24
25
25
26
26
26
27
28

TESTING THE VOICE TERMINALS
TESTING THE SYSTEM
LABELING THE VOICE TERMINAL INTERCOM NUMBERS
SYSTEM CHANGES
INTRODUCTION
29
30
32
35
35
35
35
36
36
37
37
37
39
TO CHANGE CONTROL UNIT SWITCHES
TO ADD AN OUTSIDE LINE
TO ADD A VOICE TERMINAL
TO ADD A VOICE TERMINAL ACCESSORY
TO MOVE A VOICE TERMINAL LOCATION
TO SWAP VOICE TERMINAL LOCATIONS
TO ADD A CARTRIDGE
QUICK CHECK TESTS
INTRODUCTION
39
QUICK CHECKS TO DETERMINE WHETHER THE TROUBLE IS IN YOUR
SYSTEM
39
SYMPTOM-BASED QUICK CHECKS 41
Symptom List 41
A.Voice Terminal Does Not Ring
B.
C.
D.
E.
Basic Service
Feature Package 1 Service
Cannot Make an Outside Call
Basic Service
Feature Package 1 Service
Trouble with Indicator Lights, Speaker, or Ringing
Some Custom Features Do Not Work
All Voice Terminals Have No Lights and No Dial Tone (Entire System
Down)
44
41
41
41
41
41
42
42
43
GENERAL QUICK CHECKS
44
IF TROUBLE REMAINS
45
MAINTENANCE EXCHANGE PROCEDURES
46
INTRODUCTION

INTRODUCTION
HOW TO USE THIS MANUAL
This Service Manual provides instructions for installing, changing and adding, troubleshoot-
ing, and, if necessary, replacing components on your MERLIN* communications system. It is
intended for use by the person in your company who is responsible for telephone service.
Reading the whole manual is not necessary; you need only read the introduction and those
sections relevant to the task you have to perform.
This manual is divided into five sections:
●Preinstallation: Contains instructions to prepare for the installation of your MERLIN
communications system.
●Installation: Contains instructions for installation and preliminary testing of your
MERLIN communications system.
●System Changes: Provides directions for changing and adding to your MERLIN com-
munications system.
Quick Check Tests: Describes simple tests to identify the source of problems your
●
MERLIN communications system may have.
●Maintenance Exchange Procedures: Describes how American Bell allows you to
exchange faulty equipment for working replacements.
Note: Notices required by the FCC are printed in the User’s Guide inside the front and
back covers. You should be familiar with this information before installing your
new equipment.
Descriptive and operational information is provided in the User’s Guide. Customer Informa-
tion Brochures (CIBs) describe the physical characteristics of each device and provide instal-
lation instructions. One CIB is packaged with each voice terminal or other system com-
ponent. Both the CIB and this manual are required for proper component installation.
* Trademark of AT&T Co.
1

2
PREINSTALLATION

PREINSTALLATION
INTRODUCTION
If you are installing your own MERLIN communications system, use the instructions in the
“Preinstallation” and “Installation” sections. These instructions are divided as follows:
Getting Started
●
●Installing the Control Unit
Installing the Cords/Cables
●
●
Installing the Telephones (Voice Terminals)
●Testing the Telephones (Voice Terminals)
●
Testing the System
●Labeling the Telephone (Voice Terminal) Intercom Number
Whenever you see a DANGER, Warning, or Caution, please read it carefully. These
terms mean the following:
●DANGER — Possibility of personal injury.
●Warning — Possibility of equipment damage.
●Caution — Possibility of service interruption.
IMPORTANT TELEPHONE NUMBERS
●For questions concerning installation or repair, call the American Bell toll-free
HELP number:
1-800-628-2888
●To order equipment from the National Sales Center, call the American Bell toll-free
SALES number:
1-800-247-1212
3

GETTING STARTED
This section helps you get ready to install your MERLIN communications system. Begin by
checking the floor plan that you prepared with your order, verifying the equipment received,
and getting the tools you need. After you complete each step, check it off in the box on the
left.
A. Checking the Floor Plan
❑Check the floor plan that you prepared when you ordered your system, to make sure
that it agrees with the layout of the installation location. Figure 1 show a typical sys-
tem.
10–BUTTON
VOICE TERMINAL
D8AF TERMINAL
EXTENSION
CORD
LINE
CORDS
D8W MODULAR
TERMINAL CORD
MODEL 206 CONTROL UNIT
NETWORK
INTERFACE
MODULAR
Figure 1
4

Preinstallation (cont’d)
B. Checking the Shipment
❑Open all packages and make sure you have all the items you ordered. Use your copy of
tion” section.
the order form to check your shipment.
For help in identifying items, refer to Figure 2 (Illustrated Parts List). If there are any
discrepancies, call your sales representative or the HELP number provided in the “Introduc-
Note 1:
Note 2:
Note 3:
Do not discard Customer Information Brochures (CIBS) included with items in
your shipment. These instructions may be referred to in this Manual. To avoid
losing the instructions, keep them with the items until you need to use them.
Do not discard the cartons and packaging material. You may have overlooked a
small item, or you may need the cartons and packing to return damaged or defec-
tive items.
Save the extra serial number tags loosely packed with the control unit, voice ter-
minals, and cartridges.
C. Getting the Tools You Need
Get the following tools:
❑ 1.
❑ 2.
❑ 3.
❑ 4.
Hammer
Screwdriver
Drill and appropriate bits, 5/8-inch and smaller (if control unit, voice terminals, or the
extra-alert switch are to be mounted on a wall, or if you must route wiring through
walls).
Stapler and staples appropriate for attaching wiring to baseboard.
5

(6A)
CONTROL UNIT
DOOR
(6106-CU1) (6110-CU1)
2-LINE/6-TERMINAL 4-LINE/10-TERMINAL
CONTROL UNIT
CONTROL UNIT
MOUNTING
HOLES
TEMPLATE
MOUNTING
SCREWS
EXPANSION
BOLTS
MOUNTING
BRACKET
BASE PLATE
(CS 100A) CONTROL UNIT
WALL MOUNTING KIT (61201)
Figure 2 (1 of 6)
6

Preinstallation (cont’d)
(110A) FEATURE
CARTRIDGE (TYPE
I)
(6100-FC1)
(150A) MUSIC-ON-HOLD
CARTRIDGE (TYPE
II)
(6101-MOH)
(170A) EXTRA–ALERT/2-LINE
POWER FAILURE CARTRIDGE
(TYPE III) (6103-EAP)
(7302 H01) 5-BUTTON VOICE
TERMINAL (3160-111)
(151A) MUSIC-ON-HOLD/PAGING
CARTRIDGE (TYPE
II)
(6102-MHP)
(171A) EXTRA–ALERT/4-LINE
POWER FAILURE CARTRIDGE
(TYPE III) (6104-EAP)
(7303 H01) 10-BUTTON VOICE
TERMINAL (3161-172)
(7305 H01) 34-BUTTON VOICE
TERMINAL (3162-412)
Figure 2 (2 of 6)
7

(10A) 5-BUTTON AND 10-BUTTON
VOICE TERMINAL DESK STAND
(14A) 5-BUTTON VOICE TERMINAL (201A) 10-BUTTON VOICE
(32004)
DESK STAND AND WALL MOUNT TERMINAL WALL MOUNT
(32000) (32001)
(11A) 10-BUTTON VOICE TERMINAL (11C) 34-BUTTON VOICE TERMINAL (203A) 34-BUTTON VOICE
ADJUSTABLE DESK STAND ADJUSTABLE DESK STAND TERMINAL WALL MOUNT
(32002) (32003) (32006)
Figure 2 (3 of 6)
8

(CS 500DM) POWER FAILURE
ROTARY TELEPHONE (61209)
(502A) HEADSET ADAPTER
(3164-HFA)
Preinstallation (cont’d)
(CS 2500DMG) POWER FAILURE
“TOUCH-TONE” TELEPHONE (61210)
(S102A) HANDS-FREE UNIT (335A) AUXILIARY POWER UNIT
(3163-HFU) (3165-APU)
Figure 2 (4 of 6)
9

(349A) ACOUSTIC COUPLER
ADAPTER (R)
(D8W) MODULAR TERMINAL CORD
(7, 14 AND 25 FT)
(32807, 32814 AND 32825)
(346A) ACOUSTIC COUPLER
ADAPTER (N) (31710)
(DIW) VOICE TERMINAL
CABLING (32910)
ADHESIVE-BACKED CABLE CLIP
(D4CH) MODULAR LINE CORD (D8AF) TERMINAL EXTENSION CORD
(7, 14 AND 25 FT) (14, 25, 50, 75 AND 100 FT)
(61407, 61414 AND 61425)
(32914, 32925, 32950, 32975
(267C) TWO-LINE ADAPTER
(61400)
AND 32900)
267A
D4CE CORD
(267A ADAPTER/D4CE-50 CORD)
NETWORK BRIDGING ADAPTER KIT (61401)
Figure 2 (5 of 6)
10

Preinstallation (cont’d)
(103A) CUSTOMER–INSTALLABLE
JACK (32601)
(452A) EXTRA–ALERT CONTROL
SWITCH (32630)
(D181233) LINE–POWERED EXTRA–
ALERT E1CM RINGER (61211)
Figure 2 (6 of 6)
CIB CROSS REFERENCE
The following table provides a cross reference between the Customer Information Brochure
(CIB) number, Apparatus Code, Description, and Price Element Code (PEC) for components
used in the MERLIN communications system, Models 206 and 410.
11

CIB
NUMBER
2822H1
2851
2852
2853
2854
2855
2856
2858
2863
2864
2865
2866
2867
2869
2870
2871
2872
2873
2885
2886
2887
2888
2893
2903
2923
2924
APPARATUS
CODE
953A
CS 100A
7302 H01
7303 H01
10A
11A
201A
103A
267C
S102A
7305 H01
335A
502A
110A
150A
151A
170A
171A
14A
11C
203A
267A/D4CE-50
452A-50
349A
346A
D181233
DESCRIPTION
Tool
Control Unit Wall Mounting Kit
5-Button Voice Terminal
10-Button Voice Terminal
5- and 10-Button Voice Terminal Fixed Desk Stand
10-Button Voice Terminal Adjustable Desk Stand
10-Button Voice Terminal Wall Mount
Customer-Installable Jack
Two-Line Adapter
Hands-Free Unit
34-Button Voice Terminal
Auxiliary Power Unit
Headset Adapter
Feature Cartridge (Type I)
Music-on-Hold Cartridge (Type II)
Music-on-Hold/Paging Cartridge (Type II)
Extra-Alert/2-Line Power Failure Cartridge (Type III)
Extra-Alert/4-Line Power Failure Cartridge (Type III)
5-Button Voice Terminal Fixed Desk Stand and
Wall Mount
34-Button Voice Terminal Adjustable Desk Stand
34-Button Voice Terminal Wall Mount
Line Bridging Adapter Kit (Adapter/Cord)
Extra-Alert Control Switch
Acoustic Coupler Adapter
Acoustic Coupler Adapter
Line-Powered Extra-Alert E1CM Ringer and Parts
PEC
61201
3160-111
3161-172
32004
32002
32001
32601
61400
3163-HFU
3162-412
3165-APU
3164-HFA
6100-FC1
6101-MOH
6102-MHP
6103-EAP
6104-EAP
32000
32003
32006
61401
32630
—
31710
61211
12
INSTALLATION

INSTALLATION
INSTALLING THE CONTROL UNIT
This section explains how to position the control unit, install the cartridges, supply power to
the control unit, connect the control unit to the network interface, and set the control unit
switches (Figure 3).
D4CH MODULAR
LINE CORDS
TWO–
LINE
ADAPTER
AC
LOCAL TELEPHONE
EXCHANGE SERVICE
COMPANY
NETWORK
INTERFACE LOCAL
TELEPHONE
EXCHANGE
SERVICE
COMPANY
LINES
AC
OUTLET POWER
CORD
Figure 3
13

Enviromental Requirements
The control has the following requirements:
1. Operating temperatures 40-104 degres Fahrenheit (4-40 degrees Centigrade).
2.
Humidity (not to exceed 80 percent).
3.
Dissipation of power (20 watts during normal operation).
4.
Ventilation (a minimum of 1/2 inch of space is required on all sides; also keep away
from extreme heat such as furnaces, heaters, attics, and direct sunlight).
5. Exposure (avoid exposure to moisture, corrosive gasses, dust, chemicals, or other simi-
lar materials).
A. Positioning the Control Unit
Determine where the control unit is to be located. Its dimensions are 9-3/8 inches high, 14-
1/4 inches wide, and 9-7/8 inches deep. The control unit weighs 11 pounds.
❑ 1.
If you choose a horizontal surface such as a shelf or cabinet, place the control unit in
the desired location.
If you choose to mount the unit on a wall, find the CS 100A Control Unit Wall Mount-
ing Kit in the shipment and follow the instructions packed with it.
❑ 2.
If the installation includes an auxiliary power unit (335A Power Unit), find it in the
shipment. Install it following the instructions packed with it.
Note 1: A Model 206 system can have a maximum of six voice terminals. An auxiliary
power unit is required when the system has a total of nine or more voice ter-
minals and accessories (for example, five terminals and four hands-free units).
Note 2: A Model 410 system can have a maximum of ten voice terminals. An auxiliary
power unit is required when Model 410 has a total of fifteen or more voice ter-
minals and accessories (for example, ten terminals and six hands-free units).
14

Installation (cont’d)
B. Installing the Cartridges
Find the optional cartridge(s) you ordered in your shipment. The possible cartridges
❑ 1. are:
Feature Package 1 Cartridge (Type I )
Music-on-Hold Cartridge (Type II)
Music-on-Hold/Paging Cartridge (Type II)
Extra-Alert/2-Line Power Failure Transfer Cartridge (Type III)
Extra-Alert/4-Line Power Failure Transfer Cartridge (Type III) (Model 410 only)
●
●
●
●
●
Two cartridges of the same type (I, II, III) cannot be used simultaneously.
If you have any cartridges to install, unplug the power cord of the control unit.
❑ 2.
Warning: Do not insert or remove cartridges with power on.
❑ 3.
Install the cartridge(s) following the instructions packed with each cartridge. If a
Feature Package 1 cartridge is installed, be certain that the “Ringing” switch label is
covered by the “Outward Calls” label, shipped with the cartridge.
C. Supplying Power to the Control Unit
DANGER: Any electrical outlet should be installed by a licensed electri-
cian. The requirements are: 117-volt, 60-Hz, 3-prong outlet
that provides a separate ground, separately fused at 15 amps,
and not controlled by a light switch.
Caution: Do not use an extension cord to supply power to the control
unit.
❑ 1.
Plug the power cord into the ac outlet. The green “Power” light in the upper left
corner of the control unit should be on; the red “Warning” light should come on
momentarily to show that it is working and then go off. If the green “Power” light
does not come on, check the outlet. If the outlet is working properly and the green
light remains off, call the HELP number (1-800-628-2888).
❑ 2.
If the red “Warning” light does not light momentarily or if it remains on, call the
HELP number (1-800-628-2888).
D. Connecting the Control Unit to the Network Interface
❑ 1.
Locate the network interface (that is, the place where the local telephone exchange
service company lines enter the building). The interface may look like one of the fol-
lowing (Figure 4):
15

625–TYPE CONNECTING BLOCK
(NOTICE DOES NOT
APPLY TO “MERLIN”
INSTALLATION)
625–TYPE CONNECTING BLOCK
625–TYPE CONNECTING BLOCK
(FLUSH MOUNTED)
630–TYPE CONNECTING BLOCK
(FLUSH MOUNTED)
Figure 4
❑ 2. If there is a separate network interface for each local telephone exchange service
company line or if your system has only one line coming in, go to the next step. Oth-
erwise, plug the (267C) two-line adapter into the jack on the network interface as
shown in Figure 5.
Figure 5
16