AT&T Release 2.0 User Manual

AT&T
MERLIN LEGEND™
Communications System
AT&T 555-620-141 Issue 1 October 1992
Release
2.0
Copyright © 1992 AT&T All Rights Reserved Printed in U.S.A.
AT&T 555-620-141
Issue 1
October 1992
Notice
Every effort was made to ensure that the information in this book was complete and accurate at the time of printing. However, information is subject to change.
Federal Communications Commission (FCC) Electromagnetic Interference Information
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.
Canadian Department of Communications (DOC)
Interference Information
This digital apparatus does not exceed the Class A limits for radio noise emissions set out in the radio interference regulations of the Canadian Department of Communications.
Le Présent Appareil Numérique n’émet pas de bruits radioélectriques dépassant les limites applicable aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada.
Trademarks
CONVERSANT, Magic On Hold, and MERLIN are registered trademarks, and AUDIX Voice Power, InnManager, MERLIN Attendant, MERLIN LEGEND, MERLIN MAIL, MERLIN PFC, MLX-10, MLX-10D, MLX-20L, and MLX-28D are trademarks of AT&T in the U.S. and other countries. MS-DOS is a registered trademark of Microsoft Corp.
Mirage, StarSet, Supra, and Supra NC are registered trademarks of Plantronics, Inc.
Support Telephone Number
AT&T provides a toll-free customer Helpline (1-800-628-2888) 24 hours a day (U.S.A. only). Call the Helpline, or your authorized dealer, if you need assistance when installing, programming, or using the system.
Contents
2
1
About This Book
Intended Audience
Conventions
Product Safety Labels
Related Documents
How to Comment on This Document
Introduction to Installation
Overview of the Installation Process
System Forms
Upgrading the Communications System
Installing the Control Unit
Overview
Preparation
Power and Grounding
Unit Loads
Installing the Basic Carrier
Upgrading the Control Unit
Installing Expansion Carriers
Installing the Power Supply
Installing the Processor
Installing the Modules
Connecting the Control Unit to an AC Outlet
1 1 1
2 3 5
1-1 1-2 1-3 1-6
2-1 2-1
2-2 2-6 2-18 2-20 2-22 2-26
2-28 2-39 2-53
2-62
Contents i
Contents
4
3
Powering Up the System
Powering Down the System
Installing Telephones and Adjuncts
Installing the Multi-Function Module
Installing Adjuncts
Installing the Direct Station Selector
Assembling the MLX Telephone
Connecting the Telephones to the Control Unit
Connecting the Control Unit to the
Network Interface
Wiring
Testing Trunks
Labeling Trunks
Installing the Channel Service Unit
2-63 2-64
3-1 3-2 3-12
3-31 3-36 3-43
4-1 4-2 4-14 4-16
4-17
5
ii
Installing the PC, CAT, or Printer
Connecting a PC to the Control Unit
Connecting a CAT to the Control Unit
Connecting a Printer to the Control Unit
Contents
5-1 5-1 5-7 5-8
Contents
8
7
6
Connecting Data Equipment
Data Stations
Modem Pools
Initializing and Testing the System
Initializing the System
Setting the Time and Date
Testing the System
Installing the Control Unit Housing
Installing Applications
Voice Messaging Systems and TTRs
Automated Document Delivery System
Call Accounting System
Call Accounting Terminal
Call Management System
CONVERSANT Intro
InnManager Guest Management System
Integrated Solution III MERLIN Attendant
MERLIN MAIL Voice Messaging System
MERLIN PFC
System Programming and Maintenance (SPM)
6-1 6-2
6-23
7-1 7-1
7-9 7-10 7-32
8-1
8-2 8-4 8-5 8-8 8-11 8-14 8-16 8-18
8-21 8-23 8-27 8-29
Contents iii
Contents
A
B
System Numbering Forms
Form 2a, System Numbering—Station Jacks
Form 2b, System Numbering—Digital Adjuncts
Form 2c, System Numbering—Trunk Jacks
Form 2d, System Numbering—Special Renumbers
Unit Load Calculation Worksheet
Unit Load Worksheet
C Ordering Codes
Ordering Codes
A-1 A-2 A-4 A-5 A-6
B-1 B-2
C-1 C-1
iv
Contents
Figures
2
Installing the Control Unit
Figure 2-1. Figure 2-2.
Figure 2-3. Central Office and AC Grounds Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Removing the Control Unit Housing Figure 2-8. Connecting the Carriers
Figure 2-9.
Figure 2-10. Replacing a Ring Generator Figure 2-11. Installing a Copper Shield in the Power Supply Figure 2-12. Modifying the Processor Board for Key Mode
Figure 2-13. Installing the Feature Module in the Processor Figure 2-14. Installing the Processor into the Carrier Figure 2-15. Installing an Auxiliary Power Unit Figure 2-16. Setting the 400EM Module DIP Switches for
AC Grounding Requirements Measuring the AC Outlet Voltages
Installing 146A and 147A Protectors Marking the Basic Carrier Screw Holes Installing the Housing Clips on the Carrier
Installing a Ring Generator in the Power
Supply
2-7 2-10
2-12 2-17 2-20 2-21 2-23
2-26
2-31 2-34 2-37 2-42 2-44 2-47
2-49
3
E&M Signaling Types 1C and 5
Figure 2-17. Trunk and Telephone Jacks on Each Module
Installing Telephones and Adjuncts
Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Setting the MFM Jumpers
Multi-Function Module Packing List Remove Desk Stand and Module Cover
MFM Locking Tabs
2-54 2-58
3-3 3-5 3-7
3-8
Contents v
Figures
Figure 3-5. Figure 3-6.
Figure 3-7. Figure 3-8. Single-Zone Paging with PagePac 20 Figure 3-9. Single-Zone Paging with Customer-Supplied
Figure 3-10. Single-Zone Paging with Paging Access
Figure 3-11. Single-Zone Paging with Background Music
Figure 3-12. Multizone Paging with Background Music,
Figure 3-13. Installing the Supplemental Alert Adapter Figure 3-14. Connecting One or More DSSS Figure 3-15. Removing the Extension Label Figure 3-16. Labeling the Extension
Removing the Jack Guard Powering up the Telephone after Installing the MFM Routing the Cord(s) through the Cord Channel
Amplifier
Module
and Magic On Hold
Magic On Hold, and Talk-Back
3-9
3-11 3-14 3-21
3-22
3-23
3-25
3-26
3-28 3-33 3-38 3-38
vi
Figure 3-17. Removing the Handset Holder Figure 3-18. Rotating the Handset Holder Figure 3-19. Replacing the Extension Label Figure 3-20. Routing the Cord through the Backplate Figure 3-21. Mounting the Backplate Figure 3-22. Hardware for Connecting up to 24 Telephones
(also included in SYSTIMAX Hardware Kit; see also Figure 3-27)
Figure 3-23. Tools for Connecting up to 24 Telephones
Figure 3-24. Inserting the Conductors into the Connecting
Blocks
Contents
3-39 3-39
3-40
3-41
3-42
3-46
3-47
3-50
Figures
Figure 3-25. Using the D-Impact Tool to Seat the
Conductors
Figure 3-26. Routing the Wires through the Wire Troughs
and D-Rings
Figure 3-27. SYSTIMAX Hardware Kit (See also
Figure 3-22)
Figure 3-28. Attaching the SYSTIMAX Template to the Wall Figure 3-29. Using the SYSTIMAX Template to Place the
Hardware Figure 3-30. Drilling Holes for Each Piece of Hardware Figure 3-31. Using the 788J1 Tool to Seat and Trim the
Conductors
Figure 3-32. Using the Reversed Blade Edge on the 788J1
Impact Tool
Figure 3-33. Connecting Termination Blocks to
Field-Terminated Blocks
Figure 3-34. Connecting Two Voice Pairs to a Telephone
Using a Bridge Adapter (BR-241-B1)
Figure 3-35. Pressing the Wires Over the Slots in the Outlet Figure 3-36. Removing the Connecting Block
3-51
3-52
3-54 3-56
3-57 3-58
3-60
3-61
3-63
3-64 3-66 3-73
4
Connecting the Control Unit to the
Network Interface
Figure 4-1.
Figure 4-2.
Figure 4-3.
Figure 4-4. Using the D-Impact Tool to Seat the
RJ21X Network Interface Connector RJ21X Wiring Field Hardware RJ21X Wiring Field Tools
Conductors
4-5 4-7 4-8
4-10
Contents
vii
Figures
5
Figure 4-5. RJ11 and RJ14 Interfaces Figure 4-6. Connecting the ESF T1 CSU (Rear Panel) Figure 4-7. Figure 4-8.
Figure 4-9. Connecting the T1 Lines to the CSU Figure 4-10. Signal Monitor Unit Figure 4-11. Inserting the Office Repeater into the
ESF T1 CSU Front Panel 551 T1 CSU
551 T1 CSU
Installing the PC, CAT, or Printer
Figure 5-1. Figure 5-2. Connecting the PC (50 Feet or More) Figure 5-3. Connecting the Printer (Within 50 Feet) Figure 5-4. Connecting the Printer (50 Feet or More) Figure 5-5. Connecting the 248B Adapter and the 2012D
Connecting the PC (Within 50 Feet)
Transformer
4-11 4-26 4-30 4-33 4-37
4-38
4-40
5-3 5-5 5-13 5-17
5-20
6
Connecting Data Equipment
Figure 6-1. Figure 6-2.
Figure 6-3. Figure 6-4.
Figure 6-5.
Figure 6-6. Digital Data-Only Equipment Configuration
viii Contents
Data Stations and a Modem Pool Analog Data and Analog Voice Equipment Configuration Analog Data Only Equipment Configuration Analog Data and Digital Voice Equipment Configuration Digital Data and Digital Voice Equipment Configuration
6-1
6-6 6-9
6-11
6-13
6-16
Figures
7
8
A
Figure 6-7. Video Conferencing Connections Figure 6-8. Modem Pool Configurations
6-20
6-26
Initializing and Testing the System
Figure 7-1. Figure 7-2.
Ground-Start Button Installing the Control Unit Housing
7-29 7-32
Installing Applications
Figure 8-1.
Connecting the CAT
8-9
System Numbering Forms
Figure A-1. Figure A-2. Form 2b, System Numbering—Digital Adjuncts A-4 Figure A-3. Form 2c, System Numbering—Trunk Jacks Figure A-4. Form 2d, System Numbering—Special
Form 2a, System Numbering—Station Jacks
Renumbers
A-2
A-5
A-6
Contents ix
x
Contents
Tables
4
3
2
Installing the Control Unit
Table 2-1. Table 2-2. Table 2-3. Table 2-4.
Table 2-5.
Environmental Requirements AC Power Requirements Heavy Lightning Protection Setting the 400EM Module DIP Switches Sample DIP Switches for the 400EM Module
Installing Telephones and Adjuncts
Table 3-1. Table 3-2.
Unsupported Telephones and Adjuncts Insert Labels
Connecting the Control Unit to the
Network Interface
Table 4-1.
Table 4-2. Table 4-3. Table 4-4.
Table 4-5. Table 4-6. Table 4-7. Table 4-8.
Table 4-9. Table 4-10.
Network Interfaces Central Office Network Interface Codes SW1 Default Settings SW2 Default Settings
SW4 Default Settings SW5 Default Settings SW6 Default Settings
SW7 Settings SW2 BER Options Switch Settings in Hybrid/PBX Mode: Network
2-3 2-8 2-16 2-55 2-55
3-30 3-68
4-3 4-4 4-19
4-19 4-20 4-20 4-21 4-21
4-22
and Equipment are ESF Framed lJsing AMI
ZCS Line Code
4-23
Contents xi
Tables
Table 4-11.
Table 4-12.
Table 4-13. Table 4-14. Table 4-15.
Table 4-16. Table 4-17. Table 4-18.
Table 4-19.
Table 4-20.
Table 4-21.
Table 4-22.
Table 4-23.
Table 4-24.
Table 4-25.
Table 4-26.
Table 4-27.
Switch Settings in Hybrid/PBX Mode: Network and Equipment are ESF Framed Using B8ZS Line Code Switch Settings in Hybrid/PBX Mode: Network and Equipment are D4 Framed Artificial Transmit Line Options
100D Module Pin Assignments
Wire-Wrap Connector Pin Assignments
DTE 15-Pin Connector Pin Assignments Network 15-Pin Connector Pin Assignments CSU Front Panel LEDs CSU Front-Panel Controls
CSU Front-Panel Test Jacks
Signal Monitor Unit Switch Settings
Office Repeater Power Mode Option Settings
Office Repeater Artificial Line Options
Signal Monitor Unit Front-Panel LEDs
Signal Monitor Unit Front-Panel Test Jacks
CSU Rear-Panel Pin Assignments
TBI Pin Assignments
.
4-23
4-24 4-25
4-27 4-28 4-29 4-29 4-31 4-32 4-32 4-35 4-36 4-36 4-39 4-39 4-41 4-42
5
xii
Installing the PC, CAT, or Printer
Table 5-1. Table 5-2. Table 5-3.
Contents
AT&T 572 Printer Options
AT&T 475/476 Printer DIP Switch Settings
AT&T CAT Printer DIP Switch Settings
5-21 5-23
5-24
Tables
8
7
6
Connecting Data Equipment
Table 6-1.
Table 6-2. Table 6-3.
Table 6-4. Table 6-5.
Data Station Configurations Data Module Settings
7500B Option Settings for Digital-to-Analog Modem Pool Modem Option Settings for Modem Pools
7500B Option Settings for Analog-to-Digital Modem Pool
Initializing and Testing the System
Table 7-1.
Table 7-2.
Compatibility of SPM Versions during Upgrade 7-4 Programming Compatibility
Installing Applications
Table 8-1. Table 8-2. Table 8-3.
TTRs Required by VMS Voice Channels Required MERLIN MAIL Ports Required
6-4
6-23
6-30 6-31
6-32
7-4
8-3
8-18
8-24
Contents xiii
xiv
Contents
CUSTOMER WARNING
This manual is designed for use
by qualified service technicians
only. Technician qualification includes completion of an AT&T
hands-on instructor-led course covering installation and maintenance for this product. Installation or maintenance of this product by anyone other than a qualified service technician may
void the warranty. Hazardous electrical voltages are present
inside this product.
The exclamation point in an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the
product.
IMPORTANT SAFETY INSTRUCTIONS
When installing telephone equipment, always follow basic safety precautions to reduce the risk of fire, electrical shock, and injury to persons, including:
Read and understand all instructions.
Follow all warnings and instructions marked on or packed with the product.
Never install telephone wiring during a lightning storm.
Never install a telephone jack in a wet location unless the jack is specifically designed for wet locations.
Never touch uninsulated telephone wires or terminals unless the telephone wiring has been disconnected at the network interface.
Use caution when installing or modifying telephone lines.
xv
Use only AT&T-manufactured MERLIN LEGEND™ Communications System circuit modules, carrier assemblies, and power units in the MERLIN LEGEND Communications System (511A) control unit.
Use only AT&T-recommended/approved MERLIN LEGEND Communications System accessories.
If equipment connected to the analog station modules (008, 408,
408 GS/LS) or to the MLX telephone modules (008 MLX, 408 GS/LS­MLX) is to be used for in-range out-of-building (IROB) applications,
IROB protectors are required.
Do not install this product near water, for example, in a wet basement location.
Do not overload wall outlets, as this can result in the risk of fire or
electrical shock.
The MERLIN LEGEND Communications System is equipped with a
three-wire grounding-type plug with a third (grounding) pin. This plug will fit only into a grounding-type power outlet. This is a safety feature.
If you are unable to insert the plug into the outlet, contact an electrician to replace the obsolete outlet. Do not defeat the safety purpose of the grounding plug.
xvi
The MERLIN LEGEND Communications System requires a
supplementary ground.
Do not attach the power supply cord to building surfaces. Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by persons walking on it.
Slots and openings in the module housings are provided for ventilation. To protect this equipment from overheating, do not block these openings.
Never push objects of any kind into this product through module
openings or expansion slots, as they may touch dangerous voltage points or short out parts, which could result in a risk of fire or electrical shock. Never spill liquid of any kind on this product.
Unplug the product from the wall outlet before cleaning. Use a damp
cloth for cleaning. Do not use cleaners or aerosol cleaners.
Customer Support Information
Support Telephone Number
In the U.S.A. only,
24 hours a day. Call the Helpline, or your authorized dealer, if you need assistance when installing, programming, or using your system.
AT&T provides a toll-free customer Helpline (1-800-628-2888)
Outside the U.S.A.,
your system, contact your authorized AT&T dealer.
Federal Communications Commission (FCC) Electromagnetic Interference Information
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.
Canadian Department of Communications (DOC) Interference Information
This digital apparatus does not exceed the Class A limits for radio noise emissions set out in the radio interference regulations of the Canadian Department of Communications.
Le Présent Appareil Numérique n'émet pas de bruits radioelectriques depassant les limites applicable aux appareils numériques de la class A prescrites dans le reglement sur le brouillage radioelectrique edicté par le ministère des Communications du Canada.
if you need assistance when installing, programming, or using
Customer Support Information
xvii
Customer Support Information
FCC Notification and Repair Information
This equipment is registered with the FCC in accordance with Part 68 of its rules. In compliance with those rules, you are advised of the following:
Means of Connection. Connection of this equipment to the telephone network
shall be through a standard network interface jack: USOC RJ11C, RJ14C,
RJ21X. Connection to E&M tie trunks requires a USOC RJ2GX. Connection to
off-premises stations requires a USOC RJ11C or RJ14C. Connection to 1.544­Mbps digital facilities must be through a USOC RJ48C or RJ48X. Connection to DID requires a USOC RJ11C, RJ14C, or RJ21X. These USOCs must be ordered from your telephone company.
This equipment may not be used with party lines or coin telephone lines.
Notification to the Telephone Companies. Before connecting this
equipment, you or your equipment supplier must notify your local telephone company’s business office of the following:
— The telephone number(s) you will be using with this equipment. — The appropriate registration number and ringer equivalence number
(REN), which can be found on the back or bottom of the control unit, as follows:
If this equipment is to be used as Key System, report the number
AS593M-72914-KF-E.
If the system provides both manual and automatic selection of incoming/outgoing access to the network, report the number
AS593M-72682-MF-E.
If there are no directly terminated trunks, or if the only directly terminated facilities are personal lines, report the number AS5USA-65646-PF-E. The REN for all three systems is 1.5A.
— For tie line connection, the facility interface code (FIC) is TL31M and
the service order code (SOC) is 9.0F.
— For connection to off-premises stations, the FIC is OL13C and the SOC
is 9.0F.
— For equipment to be connected to 1.544-Mbps digital service, the FIC
is 04DU9-B for D4 framing format or 04DU9-C for extended framing format, and the SOC is 6.0P.
— For equipment to be connected to DID facilities, the FIC is 02RV2-T
and the SOC is AS.2. — The quantities and USOC numbers of the jacks required. — For each jack, the sequence in which lines are to be connected: the
line types, the FIC, and the REN by position when applicable.
You must also notify your local telephone company if and when this equipment
is permanently disconnected from the line(s).
The REN is used to determine the number of devices that may be connected to the telephone line. Excessive RENs on the line may result in the devices not
xviii
Customer Support Information
Customer Support Information
ringing in response to an incoming call. In most, but not all, areas the sum of the RENs should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total RENs, contact the
telephone company to determine the maximum REN for the calling area.
Installation and Operational Procedures
The manuals for your system contain information about installation and operational procedures.
Repair Instructions.
malfunctioning, the FCC requires that the equipment not be used and that it be disconnected from the network until the problem has been corrected. Repairs to this equipment can be made only by the manufacturers, their authorized agents, or others who may be authorized by the FCC. In the event repairs are needed on this equipment, contact your authorized AT&T dealer or,
U.S.A. only,
contact the National Service Assistance Center (NSAC) at
1-800-628-2888.
Rights of the Local Telephone Company.
the telephone network, the local telephone company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice is not practical, you will be notified as soon as possible. You will also be informed of your right to file a complaint with the FCC.
Your local telephone company may make changes in its facilities, equipment,
operations, or procedures that affect the proper functioning of this equipment.
If they do, you will be notified in advance to give you an opportunity to maintain
uninterrupted telephone service.
Hearing Aid Compatibility.
compatible with inductively coupled hearing aids as prescribed by the FCC.
Automatic Dialers.
MAKING TEST CALLS TO EMERGENCY NUMBERS:
— Remain on the line and briefly explain to the dispatcher the reason for
the call.
— Perform such activities in off-peak hours, such as early morning or late
evening.
Direct Inward Dialing (DID).
a. This equipment returns answer supervision signals to the Public
Switched Telephone Network when: (1) (2) (3)
(4)
If you experience trouble because your equipment is
in the
If this equipment causes harm to
The custom telephone sets for this system are
WHEN PROGRAMMING EMERGENCY NUMBERS AND/OR
answered by the called station answered by the attendant routed to a recorded announcement that can be administered by the customer premises equipment user routed to a dial prompt
Customer Support Information
xix
Customer Support Information
b. This equipment returns answer supervision on all DID calls forwarded
back to the Public Switched Telephone Network. Permissible exceptions are when: (1) a call is unanswered (2) (3)
Allowing this equipment to be operated in such a.manner as not to provide proper answer supervision signaling is in violation of Part 68 rules.
DOC Notification and Repair Information
NOTICE:
equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The DOC does not guarantee the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to connect it to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. In some cases, the company’s inside wiring for single-line individual service may be extended by means of a certified connector assembly (telephone extension cord). The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any repairs or alterations made by the user to this equipment, or any equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment.
The Canadian Department of Communications (DOC) label identifies certified
a busy tone is received a reorder tone is received
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected. This precaution may be particularly important in rural areas.
CAUTION:
contact the appropriate electrical inspection authority or electrician, as appropriate. To prevent overloading, the Load Number (LN) assigned to each terminal device
denotes the percentage of the total load to be connected to a telephone loop used by the device. The termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all the devices does not exceed 100.
xx
Customer Support Information
Users should not attempt to make such connections themselves, but should
DOC Certification No.: 230 4095A CSA Certification No.: LR 56260 Load No.: 6
Customer Support Information
Renseignements sur la notification du ministère des Communications du Canada et la réparation
AVIS: L'étiquette du ministère des Communications du Canada identifie le matériel homologué. Cette étiquette certifie que le matériel est conforme à certaines normes de protection, d'exploitation et de sécurité des réseaux de télécommunications. Le Ministère n'assure toutefois pas que le matériel fonctionnera à la satisfaction de l'utilisateur.
Avant d'installer ce matériel, l'utilisateur doit s'assurer qu'il est permis de le raccorder aux installations de l'entreprise locale de télécommunication. Le matériel doit également être installe en suivant une méthode acceptée de raccordement. Dans certains cas, les fils intérieurs de l'enterprise utilsés pour un service individuel à ligne unique peuvent être prolongés au moyen d'un dispositif homologué de raccordement (cordon prolongateur téléphonique interne.)
L'abonné ne doit pas oublier qu'il est possible que la conformité aux conditions énoncées ci-dessus n'empêchent pas la dégradation du service dans certaines situations. Actuellement, les enreprises de télécommunication ne permettent pas que l'on raccorde leur matériel à de jacks d'abonne, sauf dans les cas précis prévus pas les tarifs particuliers de ces entreprises.
Les réparations de matériel homologué doivent être effectuées par un centre d'entretien canadien autorisé désigne par le fournisseur. La compagnie de télécommunications peut demander à l'utilisateur de débrancher un appareil à la suite de réparations ou de modifications effectuées par l'utilisateur ou à cause de mauvais fonctionnnement.
Pour sa propre protection, l'utilisateur doit s'assurer que tous les fils de mise à la terre de la source d'energie électrique, des lignes téléphoniques et des canalisations d'eau métalliques, s'il y en a, sont raccordés ensemble. Cette précaution est particulièrement importante dans les régions rurales.
AVERTISSEMENT:
même; il doit avoir recors à un service d'inspection des installations électriques, ou à un electricien, selon le cas.
L'indice de charge (IC) assigné à chaque dispositif terminal indique, pour éviter toute surcharge, le pourcentage de la charge totale qui peut être raccordée à un circuit téléphonique bouclé utilisé par ce dispositif. La terminaison du circuit bouclé peut être constituée de n'importe quelle combinaison de dispositifs, pourvu que la somme des indices de charge de l'ensemble des dispositifs ne dépasse pas 100.
No d’homologation: 230 4095A Node certification: CSA LR 56260 L’indice de charge: 6
L'utilisateur ne doit pas tenter de faire ces raccordements lui-
Customer Support Information xxi
Customer Support Information
MERLIN LEGEND D.O.C. Location Label Placement
Ministère des Communications
du Canada emplacement de
l'étiquette
xxii
Customer Support Information
Customer Support Information
Security of Your System—Preventing Toll Fraud
As a customer of a new telephone system, you should be aware that there exists an increasing problem of telephone toll fraud. Telephone toll fraud can occur in many forms, despite the numerous efforts of telephone companies and telephone equipment
manufacturers to control it. Some individuals use electronic devices to prevent or falsify records of these calls. Others charge calls to someone else’s number by illegally using lost or stolen calling cards, billing innocent parties, clipping on to someone else’s line, and breaking into someone else’s telephone equipment physically or electronically. in certain instances, unauthorized individuals make connections to the telephone network through the use of remote access features.
The Remote Access feature of your system, if you choose to use it, permits off­premises callers to access the system from a remote telephone by using an 800 number or a 7- or 10-digit telephone number. The system returns an acknowledgement signaling the user to key in his or her authorization code, which is selected and administered by the system manager. After the authorization code is accepted, the system returns dial tone to the user. If you do not program specific egress restrictions, the user will be able to place any call normally dialed from a telephone associated with the system. Such an off-premises network call is originated at, and will be billed from the system location.
The Remote Access feature, as designed, helps the customer, through proper administration, to minimize the ability of unauthorized persons to gain access to the network. Most commonly, phone numbers and codes are compromised when overheard in a public location, through theft of a wallet or purse containing access information, or through carelessness (writing codes on a piece of paper and improperly discarding it). Additionally, hackers may use a computer to dial an access code and then publish the information to other hackers. Enormous charges can be run up quickly. It is the customer’s responsibility to take the appropriate steps to properly implement the features, evaluate and administer the various restriction levels, protect access codes, and distribute access codes only to individuals who have been fully advised of the sensitive nature of the access information.
Common carriers are required by law to collect their tariffed charges. While these charges are fraudulent charges made by persons with criminal intent, applicable tariffs state that the customer of record is responsible for payment of all long-distance or other network charges. AT&T cannot be responsible for such charges and will not make any allowance or give any credit for charges that result from unauthorized access.
Customer Support Information xxiii
Customer Support Information
To minimize the risk of unauthorized access to your communications system:
Use a nonpublished Remote Access number.
Assign authorization codes randomly to users on a need-to-have basis,
keeping a log of ALL authorized users and assigning one code to one person. Use random sequence authorization codes, which are less likely to be easily
broken.
Deactivate all unassigned codes promptly.
Ensure that Remote Access users are aware of their responsibility to keep the
telephone number and any authorization codes secure. When possible, restrict the off-network capability of off-premises callers, via
use of Call Restrictions and Disallowed List capabilities.
When possible, block out-of-hours calling.
Frequently monitor system call detail reports for quicker detection of any
unauthorized or abnormal calling patterns.
Limit Remote Call Forward to persons on a need-to-have basis.
Limited Warranty and Limitation of Liability
AT&T warrants to you, the customer, that your MERLIN LEGEND Communications System will be in good working order on the date AT&T or its authorized reseller delivers or installs the system, whichever is later (“Warranty Date”). If you notify AT&T or its authorized reseller within one year of the Warranty Date that your system is not in good working order, AT&T will without charge to you repair or replace, at its option, the system components that are not in good working order. Repair or replacement parts may be new or refurbished and will be provided on an exchange basis. If AT&T determines that your system cannot be repaired or replaced, AT&T will remove the system and, at your option, refund the purchase price of your system, or apply the
purchase price towards the purchase of another AT&T system.
Voice Mail Systems
Your Voice Mail system permits callers to leave verbal messages for system users or gain access to the back-up position in an emergency as well as create and distribute voice messages among system users.
The Voice Mail system, through proper administration, can help you reduce the risk of
unauthorized persons gaining access to the network. However, phone numbers and authorization codes can be compromised when overheard in a public location, are lost
through theft of a wallet or purse containing access information, or through
carelessness (writing codes on a piece of paper and improperly discarding them).
Additionally, hackers may use a computer to dial an access code and then publish the
information to other hackers. Substantial charges can accumulate quickly. It is your
xxiv
Customer Support Information
Customer Support Information
responsibility to take appropriate steps to implement the features properly, evaluate
and administer the various restriction levels, protect and carefully distribute access codes.
Under applicable tariffs, you will be responsible for payment of toll charges. AT&T cannot be responsible for such charges and will not make any allowance or give any credit resulting from unauthorized access.
To reduce the risk of unauthorized access through your Voice Mail system, please observe the following procedures:
Employees who have voice mailboxes should be required to use the passwords to protect their mailboxes.
— Have them use random sequence passwords. — Impress upon them the importance of keeping their passwords a
secret.
— Encourage them to change their passwords regularly.
The administrator should remove any unneeded voice mailboxes from the
system immediately. AUDIX Voice Power™ has the ability to limit transfers to subscribers only. You
are strongly urged to limit transfers in this manner. Use the PBX or Key system administration capability to do the following:
— Block direct access to outgoing lines and force the use of account
codes/authorization codes.
— Disallow trunk-to-trunk transfer unless required. — Assign toll restriction levels to all AUDIX Voice Power ports. — If you do not need to use the Outcalling feature, completely restrict the
outward calling capability of the AUDIX Voice Power ports.
Monitor SMDR reports or Call Accounting System reports for outgoing calls that
might be originated by AUDIX Voice Power ports.
.
Remote Administration and Maintenance
The Remote Administration and Maintenance feature of your telecommunications
system, if you choose to use it, permits users to change the system features and capabilities from a remote location.
The Remote Administration and Maintenance feature, through proper administration,
can help you reduce the risk of unauthorized persons gaining access to the network. However, telephone numbers and authorization codes can be compromised when overheard in a public location, are lost through theft of a wallet or purse containing access information, or through carelessness (writing codes on a piece of paper and improperly discarding them). Additionally, hackers may use a computer to dial an access code and then publish the information to other hackers. Substantial charges
Customer Support Information xxv
Customer Support Information
can accumulate quickly. It is your responsibility to take appropriate steps to implement the features properly, evaluate and administer the various restriction levels, and protect and carefully distribute access codes.
Under applicable tariffs, you will be responsible for payment of toll charges. AT&T cannot be responsible for such charges and will not make any allowance or give any credit resulting from unauthorized access.
To reduce the risk of unauthorized access through Remote Administration and Maintenance, please observe the following procedures:
The System Administration and Maintenance capability of a PBX or Key system
is protected by a password.
— Change the default password immediately. — Continue to change the password regularly.
— Only give the password to people who need it and impress upon them
the need to keep it secret.
— If anyone who knows the password leaves the company, change the
password immediately.
If you have a special telephone line connected to your PBX or Key system for
Remote Administration and Maintenance, you should do one of the following:
— Unplug the line when it is not being used. — Install a switch in the line to turn it off when it is not being used. — Keep the Remote Administration and Maintenance telephone number
secret. Only give it to people who need to know it, and impress upon them the need to keep it a secret. Do not write the telephone number
on the PBX or Key system, the connecting equipment, or anywhere else in the system room.
If your Remote Administration and Maintenance feature requires that someone
in your office transfer the caller to the Remote Administration and Maintenance extension, you should impress upon your employees the importance of only transferring authorized individuals to that extension.
xxvi
Customer Support Information

About This Book

The Installation guide contains information on installing and upgrading the MERLIN LEGEND
TM
Communications System.

Intended Audience

This book is intended for qualified technicians who install and upgrade the system.

Conventions

The following typographical conventions are used in this book:
Bold type is used for telephone buttons.
Press
Italic type is used for emphasis and as a substitute for information for
which you must supply a specific value.
Drop
to delete the current entry.
Dial feature code; dial ✱ ext. no.
Conventions 1
About This Book
Constant width type is used for information on telephone display
screens or on a PC screen.
Select
Bold constant width type indicates
Sys Program.
nformation that you enter
exactly as shown.
Type
install;
Keys on the PC are shown in boxes.
Press
When two keys are to be pressed at the same time, the keys are
[F7]
.
dial
#55.
connected by a hyphen.
Press
[Alt]
-
[P]
.

Product Safety Labels

Throughout these documents, hazardous situations are indicated by an exclamation point inside a triangle and the-word “caution” or “warning.”
WARNING:
Warning indicates the presence of a hazard that could cause death or severe personal injury if the hazard is not avoided.
CAUTION:
Caution indicates the presence of a hazard that could cause minor
personal injury or property damage if the hazard is not avoided.
2
Product Safety Labels
About This Book

Related Documents

The books listed below comprise the entire MERLIN LEGEND
Communications System family of documentation. These documents are
listed by their abbreviated titles. For example, MERLIN LEGEND, Release 2.0
Communications System Installation is referred ‘to as installation.
To order these books, call the Customer Information Center (CIC). Check the
inside front cover for the telephone number.
NOTE:
For any application that runs on the system, you can also order
documentation from the CIC. If you do not know the exact title or number,
they can provide
you with a list of all documentation for each application.
Document No.
555-620-114
555-620-110
555-620-115
555-620-116
555-620-111
555-620-112
555-620-113
555-620-122
555-620-123
555-620-150
555-620-152
555-620-124
555-620-125
555-620-151
Title
System Documents
System Overview Feature Reference Equipment and Operations Reference Pocket Reference
System Programming
System Planning
System Planning Forms
Telephone User Support
MLX-10D™, MLX-28D™, and MLX-20L™
Display Telephones User’s Guide
MLX-10D, MLX-28D, and MLX-20L Display Telephones Quick Reference
MLX-10D Telephone Tray Cards (6 cards) MLX-28D and MLX-20L Telephone Tray Cards (5 cards)
MLX-10™ Non-Display Telephone User’s Guide
MLX-10 Non-Display Telephone Quick Reference
MLX-10 (non-display) Telephone Tray Cards (6 cards)
Related Documents 3
About This Book
Document No.
555-620-120 555-620-121 555-620-128 555-620-126 555-620-127
555-620-134 555-620-135 555-620-132
555-620-133 555-620-136 555-620-137
555-620-130 555-620-131 555-620-129
Title
Analog Multiline Telephones User’s Guide
Analog Multiline Telephones Quick Reference
MLC-5 Cordless Telephone Quick Reference
Single-Line Telephones User’s Guide
Single-Line Telephones Quick Reference
System Operator Support
MLX Direct-Line Consoles Operator’s Guide
MLX Direct-Line Consoles Quick Reference
Analog Direct-Line Consoles Operator’s Guide
Analog Direct-Line Consoles Quick Reference
MLX Queued Call Console Operator’s Guide
MLX Queued Call Console Quick Reference
Miscellaneous User Support
Calling Group Supervisor’s Guide
Calling Group Supervisor’s Quick Reference
Data User’s Guide
555-620-140
555-620-141 555-620-142 555-620-143 555-620-144
Documentation for Qualified Technicians
Installation, Programming, & Maintenance (lP&M) Binder
(consists of 555-620-141, 555-620-142, 555-620-143, and 555-620-144)
Installation System Programming & Maintenance (SPM) Maintenance and Troubleshooting Programming Summary
Related Documents
4
About This Book

How to Comment on This Document

We welcome your comments, both good and bad. Please use the feedback form on the next page to let us know how we can continue to serve you.
If the feedback form is not included in this section, write directly to the
following address: A. Sherwood
AT&T 99 Jefferson Road
Room 2A25 Parsippany, NJ 07054
How to Comment on This Document 5

Introduction to Installation

1
Installation of the MERLIN LEGEND Communications System, involves the following:
installing the control unit
installing the telephones
connecting the system wiring
installing optional equipment
Optional equipment, such as a data module, printer, and various adjuncts may be connected to the control unit. This chapter provides an overview of
the entire installation process, which varies from customer to customer.
Introduction to Installation 1-1
Introduction to Installation

Overview of the Installation Process

The following is a comprehensive list of everything that the system could include. When installing your customer’s system, try to adhere to this order as much as possible.
1.
Install the control unit (required).
See Chapter 2.
2.
Connect power accessories to the control unit (optional). See Chapter 2.
Install the telephones (required) and adjuncts (optional).
3. See Chapter 3.
4.
Connect the telephones to the control unit (required). See Chapter 3.
5.
Connect the control unit to the network interface (required). See Chapter 4.
6.
Connect the channel service unit to the 100D module on the control unit (required only with the 100D module). See Chapter 4.
7.
Connect the printer and PC to the control unit (optional). See Chapter 5.
Connect data equipment to the control unit (optional).
8. See Chapter 6.
Initialize and test the system (required).
9. See Chapter 7.
10. Install the control unit housing (required). See Chapter 7.
11. Install applications (optional). See Chapter 8.
.
1-2
Overview of the Installation Process
Introduction to Installation

Tools and Equipment

A list of required tools and equipment is provided just before each procedure throughout this guide.

System Forms

Throughout this guide, the installation procedures refer to system forms.
These forms indicate information that is specific to your customer’s system. The forms that you need should be included with the system programming
diskette, which contains all of the programming specifically for your customer’s system.
If you find that you do not have a fully completed set of planning forms for
your customer’s system, contact your technical support organization or the
Customer Service Center (CSC). See the inside of the front cover for
telephone numbers.

Using the System Forms

Not all of the system forms are necessary for each system. The following sections list the forms according to the following categories:
Installing the control unit
Installing telephones and adjuncts
Connecting the network interface
Connecting data equipment
Programming the system
System Forms
1-3
Introduction to Installation
Installing the Control Unit
Form 1, System Planning (the Control Unit Diagram on the back)
Form 3c, Incoming Trunks—Tie
Some of the procedures in Chapter 2 refer to the Control Unit Diagram, which is the second side of Form 1, System Planning.
If you are installing a 400EM module in the control unit, you need Form 3c, Incoming Trunks—Tie to determine the switch settings prior to installing the
module in the control unit.
Installing Telephones and Adjuncts
The following forms indicate the telephones and adjuncts that are to be installed, as described in Chapter 3.
Form 2a, System Numbering—Station Jacks
Form 2b,
Form 4b,
Form 4d,
Form 4e,
Form 4f, Tip/Ring Equipment
Form 5a, Direct-Line Console (DLC)—Analog
Form 5b, Direct-Line Console (DLC)—Digital
Form 5c, MFM Adjunct—DLC
Form 5d, Queued Call Console (QCC)
System Numbering—Digital Adjuncts Analog Multiline Telephone MLX Telephone MFM Adjunct—MLX Telephone
Connecting the Network Interface
The following forms indicate the trunks that are to be connected to the control
unit. Information regarding the channel service unit is indicated as well. This information is needed to perform the procedures in Chapter 4.
-
1-4 System Forms
Introduction to Installation
Form 2c, System Numbering—Trunk Jacks
Form 3a, Incoming Trunks—Remote Access
Form 3b, Incoming Trunks—DS1 Connectivity
Form 3d, Incoming Trunks—DID
(100D Module)
Connecting Data Equipment
The following forms indicate the data equipment needed to setup data
stations and modem pools, as described in Chapter 6:
Data Form 1a,
Data Form 1b,
Data Form 2a,
Data Form 2b,
Data Form 3, Data Hunt Groups
Modem Pool—Analog to Digital Modem Pool—Digital to Analog Analog Data Station Digital Data Station
Programming the System
If you have a system programming diskette that was created using SPM, you do not need to program the system. Use that diskette to restore the system as described in Chapter 7. If you did not receive this diskette and it is your responsibility to program the system, see the System Programming guide for
instructions. Each programming procedure indicates the appropriate form.
System Forms
1-5
Introduction to Installation

Upgrading the Communications System

If you are upgrading to Release 2.0 from Release 1.0, 1.1, or from the MERLIN® II Communications System, see Chapter 7 for the upgrade procedure.
NOTE:
You cannot upgrade the system software from the MERLIN II Communications System. You can upgrade only the hardware.
1-6
Upgrading the Communications System

Installing the Control Unit

2
If you have not read Chapter 1, do so before continuing with any instructions
in this chapter.

Overview

Installing the control unit involves the following, which this chapter describes in detail:
1. Installing the backboard
2. Meeting the power and grounding requirements
3. Checking the total unit load
4. Installing the basic carrier
5. Installing any expansion carriers specified for the system
6. Installing the power supply
7. Installing the processor
8. Installing the trunk/station modules These are referred to as modules throughout this guide.
Overview 2-1
Installing the Control Unit
9. Connecting the control unit to AC power
10. Powering up the system
11. Powering down the system
Be sure to follow these procedures in the order specified.

Preparation

The control unit must be installed on a backboard, which may already be installed. If so, skip to the section, “Power and Grounding.”
If backboard installation is your responsibility, follow the procedures in this
section.

Environment

The placement of the control unit requires careful consideration. Make sure you install the backboard in an area that meets all of the environmental
requirements listed in Table 2-1.
2-2
Preparation
Installing the Control Unit
Table 2-1. Environmental Requirements
Operating
Temperatures
Humidity Airborne
Contamination
40° - 104°F (4° - 40°C) Optimum temperature: 60°F (15.6°C)
20%-80%
Do not expose the control unit to moisture, corrosive gases, dust, chemicals, spray paint, or similar material.
Ventilation Allow at least 1 inch (2.54 cm) on the right and left sides of
the control unit and 12 inches (31 cm) above and below to
prevent overheating. Do not place the control unit near extreme heat (for
example: furnaces, heaters, attics, or direct sunlight).
Electrical Fields
Heat Dissipation
Do not expose the control unit to devices that generate electrical currents causing interference (such as arc welders or motors).
Basic carrier: 500 BTU/hr
Basic carrier with one expansion carrier: 1000 BTU/hr
Basic carrier with two expansion carriers: 1500 BTU/hr
WARNING:
Do not install the control unit outdoors.
Electrical Noise/Radio-Frequency Interference (RFI)
In most cases, electrical noise is introduced to the system through trunk or telephone cables. However, electromagnetic fields near the control unit may also induce noise in the system. Therefore, the control unit and cable runs should not be placed in areas where a high electromagnetic field strength exists.
Preparation 2-3
Installing the Control Unit
Radio transmitters (AM or FM), television stations, induction heaters, motors (with commutators) of 0.25 horsepower (200 watts) or greater, and similar equipment are leading causes of interference. Small tools with universal motors are generally not a problem when they operate on separate power
lines. Motors without commutators generally do not cause interference. Field strengths below 1.0 volt per meter are unlikely to cause interference.
The field strength produced by radio transmitters can be estimated by dividing the square root of the emitted power in kilowatts by the distance from the antenna in kilometers. This yields the approximate field strength in volts per meter and is relatively accurate for distances greater than about half a
wavelength (492 ft, or 150 m, for a frequency of 1000 Hz). See the Customer
Support Information in the beginning of this guide for FCC Part 15 radio
frequency regulations.

Control Unit Requirements

Dimensions
— Basic carrier: 14” W x 23” H x 12” D — Basic carrier and one expansion carrier:
25” W x 23” H x 12” D
— Basic carrier and two expansion carriers:
37” W x 23” H x 12” D
Location
— Within 5 ft
controlled
— Within 25 ft (762 cm) of the network interface—or use an off-
premises range extender (OPRE)
— Within 1000 cable feet (305 m) of telephones— or use an OPRE
(for basic telephones)
(152 cm) of AC power outlet that is not switch-
2-4
Preparation
Installing the Control Unit

Backboard Requirements

The backboard should be wide enough to accommodate additional carriers if system growth is anticipated. In addition to the basic carrier, two expansion carriers can be added.
To accommodate the maximum control unit size, make sure the backboard meets the following requirements:
Dimensions
— with SYSTIMAX wiring: 7’ W x 4’ H x 3/4” D — without SYSTIMAX wiring: 6’ W x 3’ H x 3/4” D
Material
— 3/4” plywood — Check with local building code enforcement agency to see if
fire-retardant material is required.
— Make sure that the material meets local building code
requirements.

Installing the Backboard

When you are certain that the backboard and its location meet the
requirements indicated in this section, attach the backboard to the wall, allowing enough room on either side of the control unit for necessary wiring fields and future addition of expansion carriers.
Use the following mounting hardware:
For a wood mounting surface, use woodscrews.
For brick, cinder block, or concrete, use masonry anchors.
For plaster or plasterboard, use toggle bolts.
For sheet-metal, use sheet-metal screws and attach them to the
structural members.
Preparation
2-5
Installing the Control Unit
NOTE:
The combined pullout force of the backboard should be at least 650 pounds (295 kilograms).

Power and Grounding

Proper power and grounding are essential for correct and safe functioning of the system.
Use
this section to verify that all power and grounding requirements are met.
CAUTION:
If any of these requirements are not met, have the customer contact a licensed electrician. Do not install the system until all requirements are met.
The load center of appropriate current rating must be equipped with
circuit breaker(s) labeled
Each breaker must protect one dedicated quad AC outlet or two
120 VAC, 15 amps.
dedicated duplex AC outlets.
All AC outlets must be connected to the same load center and must
have the ground wire connected to the single-point ground bar on the
first AC outlet (see Figure 2-1).
One outlet must have an attached ground bar connected by a #6 AWG copper wire to an approved ground. This ground bar is the system’s single-point ground (see Figure 2-1).
2-6
Power and Grounding
Installing the Control Unit
From AC Load Center (2 separately fused 15 A circuits)
HUBBELL Receptacles
(5262 15 A
or equivalent)
TYPICL AC GROUNDING
Ground
(#14 AWG)
4" Box (RACO 230
or equivalent)
Single-Point
Ground
Ground Bar
Mounted on a 4" Box
(Square "D" PK9GTA or
approved equivalent)
Building Ground (#6 AWG Copper)
#12 or #14 AWG Copper
Wire to EAch Power Supply
Grounding Screw
(RACO 807
or equivalent)
Approved
Figure 2-1. AC Grounding Requirements
Each carrier requires one outlet receptacle.
Additional AC outlets may be required for auxiliary equipment.
If a printer or a PC is to be installed with the system, it must be
plugged into the same AC branch as the power supply of the basic carrier.
If the printer or PC is 50 ft (15 m) or more from the control unit or is plugged into a different AC circuit, asynchronous data units (ADUs) must be installed as well. Complete installation instructions are provided in Chapter 5.
4" Cover
Power and Grounding
2-7
Installing the Control Unit
The AC power requirements indicated in the next section, “AC Outlet
Tests” must be met.
CAUTION:
The AC outlet for the control unit cannot be switch-controlled. Plugging the control unit into such an outiet invites accidental disconnection of the system. The AC outlet must be properly wired as described in the next section, “AC Outlet Tests.”

AC Outlet Tests

If the AC outlet tests indicate that any of the power requirements in Table 2-2 are not met, your customer must contact a licensed electrician. Do not install
the system until all requirements are met.
Table 2-2. AC Power Requirements
Parameter
Nominal voltage Voltage range
Frequency Maximum current Power consumption
117
110-125
60±5% 3 per power supply
225 per power supply
Value
Unit
VAC VAC Hz amps watts
2-8
Power and Grounding
Installing the Control Unit
If the AC outlet tests reveal any of the following conditions, they must be corrected before you install the system:
open ground
hot and neutral
open hot
open neutral
hot and ground
reversed
reversed
WARNING:
Hazardous voltages are present during the following tests. Follow all instructions carefully when working with AC power line voltages.

Using an Ideal 61-035 Circuit Tester (or Equivalent)

1.
Plug the circuit tester -into the outlet to be tested.
If the circuit is properly grounded, the yellow and white lights on the
tester turn on.
A
2.
Using a
1.
2.
Unplug the circuit tester.
Volt-Ohm Milliammeter (VOM)
Set the VOM to the scale on which you can read 130 VAC. Measure the AC outlet voltages (see Figure 2-2).
Power and Grounding 2-9
Installing the Control Unit
110 - 125
Volts
Figure 2-2.
Neutral
Less than
2.5 Volts
Phase (HOT)
Ground
110 - 125
Volts
Measuring the AC Outlet Voltages
Phase to ground should be 110 to 125 VAC.
Neutral to ground should be less than 1 VAC.
Phase to neutral should be 110 to 125 VAC.
WARNING:
If the voltage readings do not measure the values required,
the AC outlet is improperly wired: do not install the system. Advise the customer to have a licensed electrician correct the problem.
2-10
Power and Grounding
Installing the Control Unit

Grounding Requirements

Proper grounding of the installation site safeguards system functioning by protecting the system from the following:
lightning
power surges
power crosses on central office trunks
electrostatic discharge (ESD)
When installing the control unit, make sure that you meet the following grounding requirements:
The control unit, the central office trunk protector, and the AC power
service panel should be as close to each other as possible. Because equipment can be located throughout a building, the National
Electrical Code requires that the ground point for the central office
trunk protector be bonded to the AC power ground as shown in
Figure 2-3.
The AC outlet and the single-point ground bar must be properly
grounded as shown earlier in Figure 2-1.
Each power supply in the control unit must be connected to the single-point ground bar by a #12 AWG or a #14 AWG solid copper wire. Figures 2-1 and 2-3 show this connection.
This wire run should be as short as possible, preferably within 5 ft
(152 cm), not to exceed 10 ft (305 cm). This procedure is described later in this chapter under “Providing the Proper Grounding.”
The AC outlet must be connected to the 147A protector with #12 AWG
or a #14 AWG solid copper wire.
Power and Grounding
2-11
Installing the Control Unit
To Central Office or Serving Facility
CO
Lines
CO
Line
Protector
Network Interface
Power Supply
DIW or 25-Pair Cable
Coupled Bonding Conductor (optional)
CO
Wiring
Field
D2R Cords
Commercial
Power
Ground
Wire
Earth
Ground
#6 AWG
Bond Wire
Plug
Power
Ground
Rod
Outlet
Figure 2-3. Central Office and AC Grounds
2-12
Power and Grounding
AC
Single ­Point Ground Bar
Shield Ground
B W
GND (Green)
Power Service
Installing the Control Unit
WARNING:
Improper ground can cause equipment failures, service outages, and electrical shock. Verify that the AC power uses an approved ground for its primary ground, that all voltage-limiting devices are grounded to an approved ground, and that the ground is one of the approved grounds listed below.
Approved Grounds
The following is a list of approved grounds, starting with the most preferred:
building steel
acceptable water pipe—must be a metal, underground water pipe at
least ½-inch (30.4 cm) in diameter, and in direct contact with the earth for at least 10 ft (3 m).
It must be electrically continuous so that the protector ground is connected. (Check for insulated joints, plastic pipe, and plastic water meters that might interrupt electrical continuity.)
A metallic underground water pipe must be supplemented by the metal frame of the building, a concrete-encased ground, or a ground ring. If these grounds are not available, the water pipe ground can be supplemented by one of the following types of grounds:
other local metal underground systems or structures—local underground structures such as tanks and piping systems
— rod and pipe electrodes—a 5/8 -inch (1.6-cm) solid rod or
¾-inch (1.9-cm) conduit or pipe electrode driven to a minimum depth of 8 ft (244 cm)
— plate electrode—a minimum of 2 square ft (61 square cm) of
metallic surface exposed to the exterior soil
Power and Grounding
2-13
Installing the Control Unit
concrete-encased ground—must be an electrode, consisting of one of
the following:
at least 20 ft (6.1 m) of one or more steel reinforcing rods, each being at least ½-inch (1.27 cm) in diameter
— 20 ft (6.1 m) of bare copper conductor not smaller than
#4 AWG, encased in 2 inches (5 cm) of concrete.
— This electrode must be located within and near the bottom of a
concrete foundation or footing that is in direct contact with the earth.
— ground ring-consists of at least 20 ft (6.1 m) of bare copper
conductor not smaller than #2 AWG encircling the building. The ground ring must be in direct contact with the earth and
buried at least 2.5 ft (77 cm) below the earth’s surface.
WARNING:
Do not use metal underground gas piping system—this is a
safety risk.
Central Office Trunk Protection
The telephone company is responsible for providing the following protection of central office trunks at the entrance to the site:
carbon blocks or gas discharge tubes connected to an approved
ground
adequate bonding of the central office trunk protector ground and the
power company ground
2-14
Power and Grounding
Installing the Control Unit
CAUTION:
Check these requirements with a simple, visual inspection; if you cannot verify that the central office grounding requirements are met, contact the central office. Do not connect the centrai office trunks until you are ceflain that these requirements are met.
Heavy Lightning Protection
For most surges, adequate protection is provided by meeting the requirements listed in the previous section, “Grounding Requirements.”
Additional protection is required when the customer is located in a heavy lightning area:
Connect a 147A protector to the system to limit surges from the AC lines and central office trunks.
One 147A protector provides protection for four central office trunks.
Connect a 146A protector to the 147A to provide protection for another
four trunks. You can connect as many as three 146A protectors to a 147A, which
allows a maximum of 16 central office trunks on one 147A protector.
For more than 16 trunks, add another 147A protector and continue
adding 146As as needed. See Table 2-3 for various configurations. See Figure 2-4 for a typical 147A protector installation.
Power and Grounding
2-15
Installing the Control Unit
Table 2-3. Heavy Lightning Protection
If you have this number of central office trunks . .
1-4 5-8 9-12
13-16
17-20
21-24
Connect these protectors
.
147A 147A and a 146A 147A and two 146As 147A and three 146As
Two 147As and three 146As See the note below.
Two 147As and four 146As See the note below.
NOTE:
When you use the additional 147A, you can connect the 146As in any combination, up to a maximum of three 146As per 147A. For example, if you have only enough wall space for two 146As and a 147A, put two
146As with the first 147A, and then put the third 146A with the additional 147A.
2-16
Power and Grounding
Installing the Control Unit
Connect telecommunications
equipment only to these outlets.
CONTROL UNIT
TEL CO LINE
CONTROL UNIT
TEL CO LINE
Status Indicator Light
Ground
Strap
Maximum load 12.5A
AC Surge Protector
147A Protector
146A Protector
Ground Strap
CONTROL UNIT
TEL CO LINE
CONTROL UNIT
TEL CO LINE
Central Office
Cross-Connect
Field
To
To
Control Unit
AC
Outlet
Power Strip
Ground
Wires
12 or 14
AWG
Figure 2-4. Installing 146A and 147A Protectors
For more detailed installation instructions, see the documentation packaged
with the protectors.
Power and Grounding
2-17
Installing the Control Unit

Unit Loads

A unit load is a measure of power (1.9 watts) used to determine the electrical load that the following components have on each carrier’s power supply:
telephones and adjuncts
Only the telephones and adjuncts that connect to the analog and digital ports on the control unit require unit load calculation. Do not
include any equipment with its own power supply in the unit load
calculation.
800 DID modules

Checking Unit Loads

In the event of maintenance or equipment changes, recalculate the unit loads
for each carrier resulting in a different configuration.
Use the worksheet in Appendix B.
General Rule: If you can distribute the 800 DID modules and telephone modules equally
across the carriers, you will prevent unnecessary drain on
any one carrier. Also, depending
provide the rules
Unit Loads for
on the system’s mode, the rules vary. The next two sections
for calculating unit loads in various modes.
the Hvbrid/PBX Mode
The power supply (model 391A1) generally supports six modules of any type
in a Hybrid/PBX system—
without requiring an auxiliary power unit.
If, however, both of the following conditions are true, the unit loads on a carrier can exceed the 54-unit maximum, and therefore require auxiliary power:
all six carrier slots are occupied by MLX telephone or analog multiline
telephone modules
2-18 Unit Loads
Installing the Control Unit
the carrier has a total of more than 45 MLX-20L telephones or 34-
button analog multiline telephones installed
Unit Loads for Key or Behind Switch Mode
In a Key or Behind Switch system with four or fewer modules, no calculation is needed. The power supply (model 391A1) generally supports four modules of any type in Key or Behind Switch mode.

Auxiliary Power Units

The power supply provides 54 unit loads to each carrier. If the unit load requirement for a carrier exceeds 54, an auxiliary power unit is needed to
allow that carrier to support an additional 27 unit loads.
CAUTION:
Running the system with more than 54 unit loads per carrier may not appear to do harm. However, this can cause the system to
malfunction, thereby creating “no trouble found” situations, such as
malfunctioning LEDs on multiline telephones, or power unit failure.
Any station connected to the modules in the last two slots receives power from the auxiliary power unit instead of from the power supply.
If an auxiliary power unit is required, complete instructions are provided later in this chapter, as the fourth step under “Installing the Processor.”
Unit Loads
2-19
Installing the Control Unit

Installing the Basic Carrier

Begin this procedure only if you have met all of the requirements discussed earlier in this chapter.
NOTE:
If you are upgrading a system, the basic carrier (and possibly one or two expansion carriers) is already installed. Do not remove any of these carriers; skip to the next section, “Upgrading the Control Unit.”
Following the instructions given below, mount the basic carrier onto the plywood, leaving 5 inches (12.7 cm) of plywood to the left. This allows easy access to the installation and removal of the system cover, while allowing enough room for system expansion (up to a total of three carriers and 5 inches (12.7 cm) of plywood to the right of the third carrier).
1. Mark the screw hole locations on the backboard using the basic carrier as a guide. See Figure 2-5.
Make sure the carrier is level before marking the holes.
Mounting Surface
Mounting Screw
Background
Basic Carrier
Figure 2-5. Marking the Basic Carrier Screw Holes
2-20
Installing the Basic Carrier
Installing the Control Unit
2. Remove the carrier from the backboard and drill a pilot hole in the center of each of the four screw-hole marks.
3. Anchor the screws approximately halfway into the backboard.
4. Place the housing clips around the molding for the screws on the back of the carrier. See Figure 2-6.
NOTE:
Install all four housing clips if the system has only one carrier. If an expansion carrier is to be added, install the housing clips only
on the left side of the basic carrier.
Figure 2-6. Installing the Housing Clips on the Carrier
5. Position the carrier on the screws and slide the carrier to the left.
6. Check to see that the carrier is level and that the housing clips extend as far as possible from the sides of the carrier.
7. Tighten the screws.
Installing the Basic Carrier
2-21
Installing the Control Unit

Upgrading the Control Unit

When upgrading, do the following:
1. Remove the control unit housing: a. Disconnect AC power from each auxiliary power unit at the wall
outlet.
b. Disconnect AC power from each carrier by disconnecting the
power cord at the wall outlet.
c. If the existing control unit is a MERLIN II Communications
System, remove the housing as follows. See Figure 2-7.
i.
Remove the front housing from each carrier by pulling the bottom-front towards you. When it releases, remove it by lifting up as shown in Figure 2-7.
ii.
Remove the top from each carrier. in the system by pushing it straight up from the front.
iii. Discard the MERLIN II Communications System housing.
d. If the existing control unit is a MERLIN LEGEND Communications
System, remove the housing as follows. See Figure 2-7.
i.
From both sides of the control unit, pry the clips from the housing, using a screwdriver if difficult to reach.
ii. When the clips are freed from the housing, carefully pull
the housing towards you.
NOTE:
If the system has more than one carrier, make sure you hold the housing only from the basic carrier side. Otherwise, the housing may disassemble.
iii. Do not discard the housing, unless new housing is
provided. You will reassemble the housing when installation of the entire system is complete, as described in Chapter 7.
2-22
Upgrading the Control Unit
Installing the Control Unit
MERLIN II
Communications System
MERLIN LEGEND
Communications System
Figure 2-7. Removing the Control Unit Housing
2. Do not remove any of the existing carriers.
3. Power down the system as described later in this chapter, under “Powering Down the System.”
Upgrading the Control Unit
2-23
lnstalling the Control Unit
.
4. See the Control Unit Diagram on Form 1, System Planning. If you will be adding an expansion carrier, remove the rightmost
module from the control unit and put it aside.
CAUTION:
If you remove the cords from the module, make sure they are
labeled first.
5. If housing clips are already installed on the existing control unit, remove them:
Remove the rightmost module from the control unit. See
a.
“Removing a Module” later in this chapter for instructions. Using a flat-blade screwdriver, unscrew the upper-right corner of
b.
the carrier only far enough to free the clip.
Pull the top-right corner of the carrier toward you while grasping
c.
the housing clip and pushing it away from you (to free it from the carrier).
When the clip is free enough to clear the screw molding on the
back of the carrier, slide the clip out and discard it.
d.
Compare the Control Unit Diagram with the existing control unit.
If you will be installing an additional expansion carrier in this upgrade, do not replace the clip on the right side until the last
expansion carrier is installed. If no more carriers are to be
installed, replace the clip now, making sure the clip is as far to
the right as possible.
e.
Secure the screw, and then repeat Steps b, c, and d for the lower-right corner of the carrier.
2-24
Upgrading the Control Unit
lnstalling the Control Unit
6. Remove the power supply as follows: a. Press upon the tab at the bottom rear of the power supply. b. While the tab is unlocked, pull the power supply towards you,
and
then lift it straight up.
WARNING:
Beware of hazardous voltages; whenever the carrier connections are exposed, use extreme caution; do not
touch them directly or with any type of tool. Follow all
procedures carefully.
7. Remove the clips from the left side of the control unit in the same way; however, make sure you replace the clips before securing the screws
again.
8. If not already installed, install the new clips on the left side of the
control unit:
a. Using a flat-blade screwdriver, unscrew the upper-left corner of
the carrier only enough to slide a new clip behind the screw molding on the back of the carrier.
b. With the clip in place, secure the screw, making sure the clip is
as far to the left as possible.
c. Repeat Steps a and b for the lower-left corner.
9. Reinstall the power supply by hooking it onto the rod at the top of the carrier, and then swinging it down into place.
10. Push the power supply firmly until you hear it lock.
11. To install any expansion carriers, see the next section, “Installing
Expansion Carriers.”
12. To install or replace any modules, see “Installing the Modules,” later in this chapter.
Upgrading the Control Unit 2-25
Installing the Control Unit

Installing Expansion Carriers

If one or more expansion carriers is indicated for the system, follow this procedure to mount each one (see Figure 2-8).
1. If you are adding an expansion carrier to an existing system, see the previous section before continuing.
2. Locate the breakaway plastic tab on the right side of the previously mounted carrier. Using a flat-blade screwdriver, gently pry the tab open to expose the card extenders and connectors on the carriers.
BASIC CARRIER
CONNECTOR
CARD EXTENDER (under the breakaway tab)
BACKBOARD
EXPANSION CARRIER
Figure 2-8. Connecting the Carriers
3. Align the connector of the expansion carrier with the card extender on
the previously mounted carrier and slide the connector onto the extender.
2-26
4. Mark the screw hole locations on the backboard using the expansion
carrier as a guide. Make sure the carrier is level before marking the holes.
Installing Expansion Carriers
Installing the Control Unit
5.
Disconnect the expansion carrier connector from the previously
mounted carrier and put the expansion carrier aside.
6.
Drill a pilot hole in the center of each of the four screw-hole marks. Anchor the screws approximately halfway into the backboard.
7. If this is the last carrier in the system, place the control unit housing
8.
clips around the right-hand molding for the screws on the back of the carrier.
If not, skip this step.
Position the expansion carrier on the screws and slide it to the left,
9.
thereby reconnecting the expansion carrier card extender to the previous carrier’s connector.
10.
Make sure the connection is secure.
11.
Check to see that the carrier is level and that the housing clips extend as far as possible from the right side of the carrier.
Tighten the screws.
12.
Installing Expansion Carriers
2-27
Installing the Control Unit

Installing the Power Supply

WARNING:
Do not attach any cables or power cords to the power supply
until it is installed in the carrier.
Do not power up the control unit until all of the modules and power equipment are installed.
Once they are installed, follow the procedures under
“Powering Up the System” later in this chapter. Failure to
comply with these procedures can result in shock hazard or damage to the equipment.
If a ring generator is specified in the system forms (Control
Unit Diagram), install it in the power supply before putting the power supply in the carrier. The detailed procedure is provided in the section “Step 2a: Installing a Ring Generator,”
later in this chapter.
For expansion carriers only, a copper shield must be installed on the power supply before installing it in the carrier. The detailed procedure is provided in the section, see
“Step 3: Installing a Copper Shield.” To prevent damage from electrostatic discharge (ESD), avoid
touching leads, connectors, pins, and other components.
Use a properly grounded wrist strap.
Remove the protective cover from the gold-finger connector
(on the back of the power supply) before inserting it into the carrier.
2-28
Installing the Power Supply
Installing the Control Unit
Installing the power supply can involve as many as four steps, depending on the system configuration. The following procedure includes steps that require detailed explanation. The detailed procedures for those steps immediately follow this high-level procedure.
1. Make sure all power to the control unit is turned off. See “Step 1: Turn Off the Power.”
2. Install a ring generator in the power supply if an 012 basic telephone or 008 OPT module is connected to the same carrier. See “Step 2a:
Installing a Ring Generator.”
NOTE:
Place all 012 modules and 008 OPT modules in one carrier
whenever possible.
3. Add a copper-foil shield to any power supply that is to be installed in an expansion carrier. See “Step 3: Installing a Copper Shield.”
4. Install the power supply in the leftmost slot of each carrier. See
“Step 4: Installing the Power Supply into the Carrier.

Step 1: Turn off the Power

a. Make sure that each power supply is turned off.
b. Make sure all power cords and auxiliary units are disconnected.
Installing the Power Supply
2-29
Installing the Control Unit

Step 2a: Installing a Ring Generator

If a ring generator (the 129B frequency generator) is indicated on the Control Unit Diagram it must be installed in the power supply before installing the power supply into the carrier.
NOTE:
This procedure is part of a larger procedure for installing the power supply. If you have not already read the beginning of this section,
“Installing the Power Supply,” do so before continuing.
If you are replacing a ring generator, skip to the next section, “Step
2b: Replacing a Ring Generator.”
WARNING:
Hazardous electrical voltages may be present if the following steps are not performed correctly.
Follow these steps to install a ring generator (see Figure 2-9 throughout this procedure):
a. Make sure each power supply is turned off, including the module in the
control unit and any auxiliary power units.
b. Unplug the power supply cord from the AC outlet (or from the auxiliary
power unit) and then from the power supply.
NOTE:
At this point, all cords should be removed from the power supply.
c. Remove the power supply from the carrier. d. Place the power supply on its left side and remove the five screws.
2-30
Installing the Power Supply
Installing the Control Unit
WIRE CLIP
P2
P1
RING GENERATOR
P202
P101
WIRE MANAGER: MAKE SURE THE MODIFICATION LABEL IS ATTACHED WHEN FINISHED: "EQUIPPED WITH 129B FREQ GEN"
Figure 2-9. Installing a Ring Generator in the Power Supply
e. Carefully turn the module over on its right side and then remove the top
of the power supply housing.
f.
Position the ring generator as shown in Figure 2-9 and align the screw holes.
Installing the Power Supply
2-31
Installing the Control Unit
.
NOTE:
Make sure the
of the power supply housing as the
board.
Secure the ring generator using the four screws, one in each corner.
g.
h.
Connect one end of the ring generator’s cable with the 3-pin connectors to the header labeled
board.
NOTE:
This cable connector, as with all four cable connectors, is “keyed” so that you cannot attach it to the header if it is turned the wrong way.
P1
header on the ring generator is on the same side
P101
P101
header on the circuit
on the power supply circuit
i.
Connect the other end of the cable to the header labeled ring generator.
NOTE:
The cable headers, the housing, so that the cables do not cross each other.
Connect one end of the 4-pin cable to the header labeled
j.
power supply circuit board.
k.
Connect the other end of the cable to the header labeled ring generator.
l.
Use the clips provided with the ring generator to attach the cables to
the inside edge of the plastic housing.
m.
Replace the top of the module housing.
P1
and
P101,
should be on the same side of
P1
P202
P2
on the
on the
on the
2-32
Installing the Power Supply
Installing the Control Unit
NOTE:
Take time to ensure that the on/off faceplate on the front of the
power supply housing is aligned and inside the top cover.
n.
Carefully, taking time to make sure the on/off faceplate stays aligned, turn the module over and replace the five screws on the housing.
Fasten the modification label
o.
the wire manager (on the front of the power supply as shown in Figure 2-9).
Equipped with 129B Freq Gen

Step 2b: Replacing a Ring Generator

WARNING:
Hazardous electrical voltages may be present if the following steps
are not performed correctiy.
Follow these steps to replace a ring generator (see Figure 2-10 throughout this procedure):
a. Make sure each power supply is turned off, including the module in the
control unit and any auxiliary power units.
b. Unplug the power supply cord from the AC outlet (or from the auxiliary
power unit) and then from the power supply,
to
NOTE:
At this point, all cords should be removed from the power supply.
c. Remove the power supply from the carrier. d. Place the power supply on its left side and remove the five screws. e. Carefully turn the module over on its right side and then remove the top
of the power supply housing.
Installing the Power Supply
2-33
Installing the Control Unit
Steps a through e: Open the power supply
Step f: Detach cable from wire clip
Step g: Disconnect the P202 header (pry the clip away from the header and pull the header straight up)
P202
WIRE CLIP
P2
RING GENERATOR
Step i: Remove the four screws (one in each corner of the ring generator)
P1
Step f: Detach cable from wire clip
Grip here
P101
Step h: Disconnect the P101 header (grip the sides and pull forcefully)
Grip here
Step t: Wire manager: make sure the modification label is attached when finished; "Equipped with 129B Freq Gen"
Figure 2-10. Replacing a Ring Generator
f. Detach the cables from the inside edge of the plastic housing by
removing them from the clips.
2-34
Installing the Power Supply
Installing the Control Unit
Disconnect the 4-pin cable from the header labeled P202 on the left
g.
side of the power supply circuit board.
As shown in Figure 2-10, you may need to pry back the clip to free the
cable.
h.
Disconnect the other cable from the header labeled P101 on the right side of the power supply circuit board.
As shown in Figure 2-10, you need to grip this cable firmly and pull forcefully.
i.
Remove the four screws from the ring generator as shown in
Figure 2-10. Remove the ring generator.
j. k.
Position the replacement ring generator as shown in Figure 2-10 and align the screw holes.
P1
Make sure the
the power supply housing as the
l.
Replace the four screws and fasten them to secure the ring generator.
m.
Connect one end of the new ring generator’s cable with the 3-pin connectors to the header labeled P101 on the power supply circuit board.
This cable connector, as with all four of the cable connectors, is “keyed” so that you cannot attach it to the header if it is turned the
wrong way.
header on the ring generator is on the same side of
P101
header on the circuit board.
Installing the Power Supply
2-35
Installing
n.
o.
the
Control Unit
Connect the other end of the cable to the header labeled
ring generator.
P1
on the
NOTE:
The cable headers, the housing, so that the cables are not crossing each other.
Connect one end of the new 4-pin cable to the header labeled
the power supply circuit board.
P1
and
P101,
should be on the same side of
P202
on
Connect the other end of the cable to the header labeled
p.
ring generator.
Attach the cables to the clips on the inside edge of the plastic housing.
q.
r.
Replace the top of the module housing.
P2
on the
NOTE:
Take time to ensure that the on/off faceplate on the front of the
power supply housing is aligned and inside the top cover.
s.
Carefully, taking time to make sure the on/off faceplate stays aligned,
turn the module over and replace the five screws. Verify that the modification label
t.
adhered to the wire manager (on the front of the power supply shown in Figure 2-10).
If not, adhere the label supplied with the new ring generator.
Reinstall the power supply by hooking the top into the carrier and then
u.
swinging it down into place. Push the lower end firmly until the locking tab clicks.
Equipped with 129B Freq Gen
is
2-36
v.
Reconnect the cords to the power supply and then the auxiliary power units (if any were connected before).
w.
Connect the cord(s) to AC power when ready to power up the system.
Installing the Power Supply
Installing the Control Unit

Step 3: lnstalling a Copper Shield

Each expansion carrier requires a power supply.
The added power supply can cause excessive noise in the module occupying the next slot. To eliminate this noise, install a copper foil shield to the power supply as indicated in this procedure. These shields and their labels are packaged in the power unit shielding kit included with the expansion carrier.
See Figure 2-11.
Upper Copper
Foil Shield
Lower Copper Foil Shield
Power Unit Information
Label
UL Label
or
CSA Label
Figure 2-11. Installing a Copper Shield in the Power Supply
Installing the Power Supply
2-37
Installing the Control Unit
NOTE:
This procedure is part of a larger procedure for installing the power supply. If you have not already read the beginning of this section, “Installing the Power Supply,” do so before continuing.
Make sure all power is off as indicated in the beginning of this section,
a.
“Installing the Power Supply.” Lay the power supply on a flat surface with the right side up (as viewed
b.
from the front edge). Wipe the module free of any dust or dirt.
c.
Peel the backing paper from the smaller copper-foil shield to expose
d.
the adhesive.
NOTE:
Check the position of the foil shield before sticking it to the side of the module. Once in place, the foil is difficult to remove.
Position the foil on the upper part of the module. Work out any air
e.
bubbles as you press the foil firmly in place.
Peel the backing paper from the larger copper-foil shield to expose its
f.
adhesive.
Position the foil on the lower part of the module.
g.
— The shields should meet. — They should not overlap or have any space between them. — Tuck the foil shield tightly along the ledge (or crease) of the
housing. Work out any air bubbles as you press the foil firmly in place.
With the copper-foil shield in place, put the power unit information label
h
on the lower piece of foil.
2-38
Attach the UL or CSA label on the power supply below the copper-foil
i.
shield.
Installing the Power Supply
Installing the Control Unit

Step 4: Installing the Power Supply into the Carrier

a. Lower the module hook onto the rod. b. Make sure the connector on the module mates properly with the
connector on the carrier.
c. Push the module into the carrier until it locks into place.
CAUTION:
Do not connect the power cord until the entire control unit is assembled.

Installing the Processor

Installing the processor requires the following steps:
1. If both of the following conditions are true, open the processor and modify the board as indicated in “Step 1: Modifying the Processor for
Key Mode.”
Form 1, System Planning, indicates Key mode
Form 2c, System Numbering—Trunk Jacks, does not have any
GS trunks indicated in the
Incoming Trunk Type
column
Installing the Processor
2-39
Installing the Control Unit
NOTE:
On initialization of a Release 1.0 system, all loop-start and ground­start trunks default to loop-start. In Releases 1.1 and 2.0, if the system is programmed for Key mode, the strap is checked on initialization. If the strap is set (Key-only operation), all trunks revert to loop-start. If the strap is not set, any programmed designation of ground-start trunks is retained.
The ground-start pool never has trunks assigned to it automatically, but must be programmed after the ground-start ports are designated. In Releases 1.1 and 2.0, ground-start trunks are assigned to the ground-start pool on initialization, except in a system strapped for Key mode operation.
2. Install the feature module in the processor as indicated in “Step 2a: Installing the Feature Module.”
3. Insert the processor into the carrier as indicated in “Step 3: Installing the Processor in the Carrier.”
CAUTION:
To prevent damage from electrostatic discharge (ESD), avoid
touching leads, connectors, pins, and other components when
handling the circuit board. Use a properly grounded wrist strap.
4. Install or replace the auxiliary power unit as described in “Step 4a:
Installing the Auxiliary Power Unit” or “Step 4b: Replacing an Auxiliary
Power Unit.”
5. Provide the proper grounding as described in “Step 5: Providing the Proper Grounding.”
2-40
Installing the Processor
Installing the Control Unit

Step 1: Modifying the Processor for Key Mode

CAUTION:
This procedure is part of a larger procedure for installing the
processor. If you have not already read the beginning of this section, “Installing the Processor,” do so before continuing.
This procedure must be performed for KF registration with the
FCC.
This procedure prevents the system from being programmed
as a Hybrid/PBX system. Do this only if the system is programmed for Key mode and GS trunks are not indicated on Form 2c, System Numbering—Trunk Jacks.
Otherwise, skip to the next section, “Step 2a: Installing the
Feature Module.”
a. Remove the processor from its package. b. Put the processor on a flat surface. c. If the feature module is installed, remove it as indicated later, under
“Step 2b: Replacing the Feature Module.”
CAUTION:
Do not touch the HDR3 header on the processor board, which is exposed when the feature module is not instal!ed in the processor. If the HDR3 header is removed, the system programming may be deleted and have to be restored.
See Figure 2-12.
Installing the Processor
2-41
Installing the Control Unit
HDR4 SHUNT
Figure 2-12. Modifying the Processor Board for Key Mode
on the exposed portion of the processor board, find the header
d.
marked
A shunt is attached to one of the pins on the HDR4 header.
e.
Remove the shunt from the single header pin; then reinsert it so that it
f.
HDR4;
it is in the upper-left area.
covers both pins on the header.
g.
Take the
KF
label from the Jack Numbering Labels Sheet that is packed with the feature module; fasten it to the wire manager at the base of the module.
HDR3
Do not touch
HDR3
2-42
Installing the Processor
Installing the Control Unit

Step 2a: Installing the Feature Module

This procedure is part of a larger procedure for installing the processor. If you have not already read the beginning of this section, “Installing the Processor,” do so before continuing.
Upgrades: If you are upgrading an existing system, skip to “Step 2b: Replacing the Feature Module.”
Before you install the processor in the carrier, you must install the feature module in the processor:
a.
Unpack the feature module. Fasten the round feature module label to the front of the processor
b.
housing. Put the processor on a flat surface as shown in Figure 2-13.
c.
Align the connectors on the feature module with the connectors in the
d.
processor as shown in Figure 2-13. When you are sure that the feature module is properly seated, press it
e.
firmly into place.
Installing the Processor
2-43
Installing the Control Unit
Figure 2-13. Installing the Feature Module in the Processor
2-44
Installing the Processor
Installing the Control Unit
.

Step 2b: Replacing the Feature Module

It may become necessary at some point to replace the feature module
because of upgrades or malfunctions.
CAUTION:
Make sure that you have a backup of the system programming before replacing the feature module. (When the feature module is
replaced, system programming is lost.) See Chapter 7 for information on the backup procedure.
Follow this procedure to replace the feature module in a fully installed system:
a. Turn off the system (see “Powering Down the System” later in this
chapter). Make sure the switch on the power supply is turned off.
b. Remove the processor from the carrier:
i.
Press upon the tab on the bottom-rear of the module. ii. Pull the bottom of the module away from the carrier. iii. Lift upward to disengage the module from the rod on the top of
the carrier.
c. Put the processor on a flat surface. d. Grasp both metal rings on the outside of the feature module and pull
straight up.
CAUTION:
Grasping onfy one of the rings may cause damage to
components on the processor circuit board or feature module.
Installing the Processor
2-45
Installing the Control Unit
e. Check the HDR4 header on the processor circuit board for proper
mode operation (see “Step 1: Modifying the Processor for Key Mode” earlier in this chapter).
f. Align the connectors on the new feature module with the connectors in
the processor (see Figure 2-13). g. Firmly press the new feature module into the processor. h. Insert the processor back into the carrier as described in
section, “Step 3: Installing the Processor in the Carrier.”
the next

Step 3: Installing the Processor in the Carrier

This procedure is part of a larger procedure for installing the processor. If
you have not already read the beginning of this section, “Installing the
Processor,” do so before continuing.
To install the processor in the carrier, follow this procedure (see Figure 2-14).
a. Remove the protective cover from the gold-finger connector (on the
back of the processor). b. Lower the top of the processor onto the carrier in Slot 0 (the first slot
next to the power supply).
2-46
Installing the Processor
Installing the Control Unit
Figure 2-14. Installing the Processor into the Carrier
c. Make sure that the connector on the module mates properly with the
connector on the carrier as you swing the processor down into place.
Installing the Processor
2-47
Installing the Control Unit
d. Push firmly until the processor snaps into place.
The processor should be securely attached to the carrier and locked in place by the locking tab on the bottom-rear of the processor.
CAUTION:
To avoid damage, do not force the module. If the module does not insert easily, press the bottom-rear locking tab, remove the module, and inspect the module and carrier for damage or obstruction.
If there is no damage and no obstruction, reinsert the module.
A damaged carrier or module must be replaced.
See Figure 2-14 for the botlom-rear locking tab. This tab is used on ail modules.

Step 4a: Installing the Auxiliary Power Unit

The Control Unit Diagram on the back of System Form 1, System Planning,
indicates whether an auxiliary power unit is required for the carrier that you
are installing. (see Figure 2-15).
NOTE:
Use the 9024 auxiliary power unit for new installations.
You can continue to use a previously installed 335A auxiliary
power unit provided no new telephones or modules are added to
the carrier.
To replace an auxiliary power unit, skip to the next section,
“Step 4b: Replacing an Auxiliary Power Unit.”
2-48
Installing the Processor
Installing the Control Unit
Auxiliary
Power
Unit
AUX J2 DC
POWER
OUTPUT
Auxiliary
Power
Input
AC
Input
Control
Unit
AC Power
Cord
AC
Outlet
Figure 2-15. Installing an Auxiliary Power Unit
a. Make sure that the switch on the power supply is turned off. b. Mount the auxiliary power unit on a surface (preferably the backboard)
within 2 ft (61 cm) of the control unit.
c. Connect the power unit line cord into the jack labeled
AUX POWER INPUT
on the power supply.
Installing the Processor
2-49
Installing the Control Unit
d. Connect the other end of the line cord into the jack labeled
J2 DC OUTPUT
CAUTION:
on the auxiliary power unit.
Do not plug the power supply or the auxiliary power unit into the AC outlet until you are ready to turn on the
system, as described in “Powering Up the System”
later in this chapter.
If the system is backed up by an Uninterruptible Power
Supply (UPS), connect the auxiliary power to the UPS.
Do not attach the power cord(s) to any building surfaces.
Use only the power unit line cord supplied with the auxiliary power unit. An incorrect cord will damage the
power supply and may damage modules.
2-50 Installing the Processor
Installing the Control Unit

Step 4b: Replacing an Auxiliary Power Unit

See Figure 2-15 throughout this procedure.
Make sure that the switch on the power supply is turned off.
a. b.
Unplug both the power supply and the auxiliary unit from the outlet. Disconnect the cord from the jack labeled
c.
AUX POWER INPUT
power supply. Remove the auxiliary power unit (with the two cords still attached).
d.
Mount the replacement auxiliary power unit in place of the old one.
e.
f.
Connect the cord into the jack labeled
J2 DC OUTPUT
on the
replacement auxiliary power unit. Connect the other end into the jack labeled
9.
AUX POWER INPUT
power supply.
CAUTION:
Do not plug the power supply or the auxiliary power
unit into the AC outlet until you are ready to turn on the system, as described later in this chapter under
“Powering Up the System.”
Do not attach the power cord(s) to any building
surfaces.
on the
on the
Installing the Processor
2-51
Installing the Control Unit

Step 5: Providing the Proper Grounding

As discussed earlier under “Power and Grounding,” the power supply on
each carrier (basic and expansion) must be grounded.
WARNING:
Grounding circuit continuity is vital for safe operation. There is a risk
of electric shock if the system is not properly grounded.
Follow these steps to properly ground the control unit power supplies (see Figures 2-1 and 2-3):
a. Attach a #12 AWG or #14 AWG solid copper ground wire to the
grounding screw on each power supply.
b. Connect the other end of each ground wire to the terminals of the
single-point ground bar on the AC outlet box.
2-52
Installing the Processor
Installing the Control Unit

Installing the Modules

CAUTION:
To prevent damage from electrostatic discharge (ESD), avoid
touching leads, connectors, pins, and other components. Use a
properly grounded wrist strap.

Guidelines for Installing Modules

By installing the modules as indicated on the Control Unit Diagram of Form 1, System Planning, you should meet the following guidelines:
Do not leave empty slots between modules. The system will ignore
modules installed beyond any empty slot.
Whenever possible, place all 012 modules and 008 OPT modules in
the same carrier so that the same ring generator can support them.
Make sure you install each module in the slot assigned; if installed in
the wrong slot, the system will not function properly.
If a phantom module (a programmed empty slot) is indicated on the
Control Unit Diagram, make sure the slot remains empty, and do not install any modules to the right. The system will ignore any modules installed to the right of an empty slot.
Installing the Modules
2-53
Installing the Control Unit
Switches
1 through 5
control
Port 4
(E&M
unprotected)
Switches
6 through 10
control
Port 3 (E&M
protected)
Switches
1 through 5
control
Port 2
(E&M
simplex)
Switches
6 through 10
control
Port 1
(E&M
protected)
Figure 2-16. Setting the 400EM Module DIP Switches for E&M Signaling Types 1C and 5
2-54
Installing the Modules
Installing the Control Unit
Table 2-4. Setting the 400EM Module DIP Switches
E&M Signaling Type
Ports
(As numbered in
Figure 2-15)
DIP
Switch
Position
1S (Default)
Unprotected -
E&M Mode
1C
Protected
E&M Mode
5
Simplex
Mode
1
2
2 4
1 3
Example: If ports 1 through 4 are programmed per column 2 of Table 2-5, set
the DIP switches as indicated in column 3:
Table 2-5. Sample DIP Switches for the 400EM Module
Ports
E&M Signal
3 4 5 6 7 8 9
10
Switches
OFF OFF OFF
OFF OFF OFF ON
ON
ON OFF
ON ON
OFF NA
OFF ON OFF OFF ON OFF OFF OFF ON OFF
OFF
NA
ON
NA NA
ON
1 and 2
3 and 4
1C 1S
Set all switches to
Default: no action required
OFF
Installing the Modules
2-55
Installing the Control Unit

Procedure

See the Control Unit Diagram on the back of System Form 1, System Planning, to determine the order of modules.
Once you have installed the power supply and the processor in the basic carrier, use the remaining slots for the modules as follows:
Basic carrier: slots 1 through 5
First expansion carrier: slots 6 through 11
Second expansion carrier: slots 12 through 17
Follow this procedure to install the modules, starting from Slot 1 (the first open
slot next to the processor).
1.
For each 400EM module trunk jack (numbered as ports 1 through 4 in Figure 2-16, check the System Planning Form 3d (Outside Trunks— Tie). If the
E&M Signal
logical ID, set the DIP switches on the front of the 400EM module, as
shown in Table 2-4 and Figure 2-14.
column indicates
1C
or 5 for a particular
NOTE:
The default E&M signal, the DIP switches.
Remove the protective cover from each module’s gold-finger
2. connector.
3.
Lower the module onto the rod on the top of the carrier in the
appropriate slot as shown in Figure 2-14.
4.
Be sure that the connector on the module mates properly with the connector on the carrier.
1S,
does not require any adjustments in
2-56
Installing the Modules
Installing the Control Unit
5. Swing the module into the slot and firmly push the module into the carrier until it locks into place.
CAUTION:
To avoid damage, do not force the module. If the module
does not insert easily, press the bottom-rear locking tab, remove the module, and inspect the module and carrier for damage or obstruction.
If there is no damage and no obstruction, reinsert the module.
A damaged carrier or module must be replaced.
6. After all modules have been installed, label all jacks with the numbered labels provided with the feature module:
Trunk labels: green numbers on off-white
Telephone labels: blue numbers on off-white
See Figure 2-17 for the locations of trunk jacks and telephone jacks on each module, and label them as described in the procedure that
follows.
Installing the Modules 2-57
Installing the Control Unit
PFT Jack
Trunk Jacks
PFT
Telephone
Figure 2-17. Trunk and Telephone Jacks on Each Module
a. Label each trunk jack on the modules sequentially, 1 through 80.
Begin with the module in slot 1, numbering from bottom to top on each module and working from left to right across the carrier(s).
NOTE:
The 100D module has 24 numbers
jack.
assigned to the trunk
2-58
Installing the Modules
Installing the Control Unit
b. Label each telephone jack sequentially, 1 through 144. Begin
with the module in slot 1, numbering from bottom to top on each module and working from left to right across the carrier.
CAUTION:
The 008 OPT module is assigned 12 Logical IDs, and the last four numbers are not assigned to jacks. For example, if the previous module (on the left) is labeled with Logical IDs 1 through 8, label the 008 OPT jacks with Logical IDs 9 through 16. Skip numbers
17 through 20. When you label the next module (on the right), label the
first jack as Logical ID 21.

Removing a Module

Follow this procedure to remove a module:
1. Follow the procedure in the last section of this chapter, “Powering Down the System.”
2. Push up firmly on the tab at the bottom rear of the module.
3. While holding up the tab, swing the bottom of the module toward you, away from the carrier.
4. Lift up the module to disengage it from the rod on the top of the carrier.
Installing the Modules
2-59
lnstalling the Control Unit
Replacing Modules
Modules can be removed and inserted (separately or at the same time) without affecting normal call processing. Leave the system power on.
CAUTION:
This section does not apply to the processor or power supply.
Although the system is designed for modules to be removed
and replaced without affecting call processing, partially
inserting and removing a module can cause a cold start.
Adding a 100D module or changing any of its DS1
parameters requires that the system be idle.
When replacing a module, be sure to use the same module
type. For example, do not put an 008 MLX module in place of 400 GS/LS/TTR. If a module is replaced with another type of module, or if a module is added to the system without powering down the system first, a cold start occurs.
If you move any module to a different slot, be sure to
renumber the modules by selecting
Board Renumber
from
System Programming. See the “System Programming” guide for information on
Board Renumber.
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Installing the Modules
Installing the Control Unit
.
Follow these steps to replace a module:
1.
Busy-out or reset the module. (Busy-out is recommended.)
2.
Label all cords (if they haven’t been labeled already) and then unplug
them from the module.
For information on labeling trunk and extension cords, see Chapters 3
and 4.
For instructions on checking poorly labeled wiring, see “Checking Poorly Labeled Wiring” in Chapter 3.
Run a demand test by entering the test mode.
3.
4.
Remove the module as described previously, under “Removing a Module.”
Inspect the module for visible damage.
5. Insert the new module as shown in Figure 2-14.
6.
7.
Restore the module as described in Chapter 7.
Plug-in the trunk and extension cords.
8.
Attach a tag, error printout, and any information that will help identify
9.
any visible problems or failure symptoms.
Installing the Modules
2-61
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