Comdial DX-120 Technical Manual

Installation and Maintenance Manual

Technical Manual - Volume I

DX-120 Installation and Maintenance Manual

Technical Manual - Volume I

Copyright © January, 2007 Vertical Communications, Inc.

All rights reserved. Unauthorized use of this document is prohibited.

Vertical Communications, Inc.

106 Cattlemen Road, Sarasota, FL 34243

[phone] or (800) 266-34 25

-Notice-

Vertical Communications, the Vertical Communications logo and combinations thereof,

and Corporate Office are trademarks ofVertical Communications, Inc. Artisoft, TeleVantage, InstantOffice,

Comdial and Vertical Networks are registered trademarks of Artisoft, Inc.

All other brand and product names are used for identification only

and are the property of their respective holders.

.

DISCLAIMER

This manual has been developed by Vertical Communications, Inc. (the “Company”) and
is intended for the use of its customers, potential customer s, and service personnel. The
information in this manual is subject to change without notice. While every effort has been
made to eliminate errors, the Company disclaims liability for any difficulties arising from
the interpretation of the information contained herein.

The information contained herein does not purport to cover all details or variations in
equipment or to provide for every possible contingency to be met in connection with instal­lation, operation, or maintenance. Should further information be desired, or should p artic­ular problems arise which are not covered sufficiently for the purchaser’s purposes,
contact V ertical Communications, Inc.

DX-120 Installation and Maintenance Manual

TABLE OF CONTENTS

SAFETY AND REGULATORY CONSIDERATIONS

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Protecting Against Static Electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

REGULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Complying with Underwriters Laboratories Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

FCC and Industry Canada (IC) Rules and Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SECTION 1 - INTRODUCTION

USING THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Locating Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

System Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Key Service Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

CPM (Central Processor Module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

408M (KSU1 Component) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

408E (KSU II Component) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

APM4 (Analog Port Module - 4 Circuits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

DPM8 (Digital Port Module - 8 Circuits). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

DPM16 (Digital Port Module - 16 Circuits). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

COM4 (Central Office Module - 4 Circuits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

MDM (Modem Module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

AAM (Automated Attendant Module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

T1 Card (T1 Module) Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

ISDN Card (T1/PRI Module) Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DET (Digital Executive Telephone) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

DSS (Direct Station Selection) Console. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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Table of Contents (continued on next page)

TABLE OF CONTENTS DX-120 Installation and Maintenance Manual

Table of Contents (continued)

SECTION 2 - INSTALLATION

INSTALLING THE DX-120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Site Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Tools and Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Preparing the Main Distribution Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

KSU Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Typical MDF Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

KSU Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Adding an APM4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Adding a COM4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Adding an MDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Adding an AAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Adding a KSU2 Second Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Adding a Music Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Adding an External Pager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Add a Loud Bell Control or Gate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Adding a DPM16 (Digital Port Module – 16 port). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Adding a T1 or ISDN (T1/PRI) Card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Connecting a Serial Cable for PC-DBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Connecting a Serial Cable for SMDR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Power-up Initialization (Cold Start). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

SECTION 3 - MAINTENANCE & TROUBLESHOOTING

SYSTEM MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Cleaning the Telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

TECHNICAL PROBLEM SOLUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Problems Not Related to System Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Diagnostic Quick Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

MAINTENANCE UTILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Loading PC-DBA software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

CONNECTING TO THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Connecting PC-DBA to the DX-120 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Establishing a Modem Connection with PC-DBA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

ACCESSING PC-DBA MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Maintenance Utilities (Menu Items) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Table of Contents (continued on next page)

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DX-120 Installation and Maintenance Manual TABLE OF CONTENTS

Table of Contents (continued)

SECTION 4 - INSTALLATION ISSUES

TROUBLESHOOTING INSTALLATION ISSUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Corrupted Database on Initial System Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Adding Hardware to an Existing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Voice Mail Doesn’t Work (“No Legal Member” Error). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Invalid Entries Calling a Busy Station (Issues with Multiple Mailbox Greetings) . . . . . . . . . . . . . 117

Ensuring Optimum Call Handling Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Ringing a Group Of Phones

Before Routing the Call to Auto-Attendant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Using Multiple Lines &

Assigning Different Auto-Attendant Greetings for Each Line. . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Setting Up Message Delivery to a Cell Phone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Using Prime CO Instead of Intercom with Modem or Fax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Digits Passed Inband to the Voice Mail in an Overflow 1 Condition . . . . . . . . . . . . . . . . . . . . . . 129

Digits Passed Inband to the Voice Mail in an Overflow 2 Condition . . . . . . . . . . . . . . . . . . . . . . 130

Digits Passed Inband to the Voice Mail in a Re-Route Condition . . . . . . . . . . . . . . . . . . . . . . . . 131

INDEX

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

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DX-120 Installation Manual - Technical Manual Vol I

SAFETY AND REGULATORY CONSIDERATIONS

SAFETY

Protecting Against Static Electricity

CAUTION

Circuit boards are susceptible to damage caused by electrost atic discharge. You
must keep this in mind as you handle the circuit boards. Refer to Vertical
publication IMI01-005, Handling of Electrostatically Sensitive Components, for
general information. Specific handling precautions are also included in this
installation manual.

The telephone system may include some installed circuit boards when it arrives at your site. The equipment
cabinets provides universal slots that will accept either line or station boards.

When removing or installing circuit boards in the cabinets, you must wear a static discharge wris t strap. Be sure
that the strap is touching bare skin and is connected to an AC or earth ground.

Disconnect the AC power cord from the AC outlet (or extenral battery back-up system if applicable) before you
remove or install the circuit board.Whenever you remove a circuit board fr om a cabinet, immediately place the
board in a static protection bag while you still have your wrist strap in place and properly grounded.

When removing circuit boards from an installation location for servicing, always transport them to a static-safe
work area in static protection bags. If you do not already have a static-safe work area, you can create one by
arranging a work area as detailed in the illustration.

ESD Protective Mat

ESD Protective

Work surface

Static Wrist Strap

Common Point Ground

Typical Earth Ground

ESD Protective Mat

- 1 -

REGULATIONS DX-120 Installation Manual - Technical Manual Vol I

REGULATIONS

Complying with Underwriters Laboratories Regulations

Per the Underwriters Laboratories regulation 1950, be aware of the following precautions when installing telephone
equipment that is to be directly connected to the telephone company network:

• Never install telephone wiring during a lightning storm

• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations

• Never touch uninsulated telephone wires or terminals u nless the telepho ne line has been disconnected at the

network interface

• Use caution when installing or modifying telephone lines

• Avoid using a telephone (other than a cordless type) during an electrical stor m—there may be a remote risk of

electrical shock from lightning

• Do not use the telephone to report a gas leak in the vicinity of the leak.

• TNV wiring to outside plant leads (e.g., central office trunk wiring) must be 2 6 AWG gauge minimum.

FCC and Industry Canada (IC) Rules and Regulations

FCC PART 15 RF EMISSION INFORMATION

This equipment contains incidental r adio freque ncy generati ng circuitry and, if not installed and used properly, may
cause interference to radio and television reception . This eq uipment has be en tested and found to co mply with the
limits for a Class A computing device pursuant to Subpart J of Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against such interference when operated in a
commercial environment. Operation of this equipment in a residential area may cause interference to radio and
television reception; in which case the user is encouraged to take whatever measures may be required to correct
the interference.

If this equipment does cause interference to radio and television reception, wh ich can be de termined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures: reorient the television or radio receiving antenna, and/or relocate the system, the individual telephone
stations, and the radio or television with respect to each other.

If necessary, the user should consult the manufacturer or an experienced radio/television technician for additional
suggestions. The user may find the following booklet prepared by the Federal Communications Commission
helpful: “How to Identify and Resolve Radio-TV Interference Problems.” This booklet is available from the
Government Printing Office, Washington, DC, 20402. Stock No. 004-000-00345-4.

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FCC Regulations (continued on next page)

DX-120 Installation Manual - Technical Manual Vol I REGULATIONS

FCC Regulations (continued)

FCC PART 68 INFORMATION

This equipment complies with Part 68 of the FCC Rules. A label, located on the exterior lower left side of the
cabinet, contains the FCC Registration Number(s) and Ringer Equivalence Number (REN).

Notify the local telephone company when you connect the equipment to the network and provide the information
shown in the following table:

Line Type

Loop Start 9.0F 02LS2 See Equipment

T1 Line 6.0Y 04DU9–1SN N/A RJ48C
ISDN (T1/PRI) Line 6.0Y 04DU9–1SN N/A RJ48C

Service Order

Code*

Facilities Interface

Code

Ringer

Equivalence

Number*

Specification Sheet

Universal

Service Order

Code

Connector

RJ1 1

NOTE

State tariffs do not permit ground start operation for KF registered
equipment (key system operation). Ground start operation is only
permitted for MF registered equipment (KTS/PBX hybrids with both
manual and pooled outgoing and incoming access to the network).
The system must

be configured for MF operation when using

ground start operation

This equipment may not be used on coin service provided by the telephone company. Connection to party lines is
subject to state tariffs.

Should the equipment cause harm to the telephone network, the telephone company may disconnect your service
temporarily. If possible, they will notify you in advance. If advanced notice is not practical, they will notify you as
soon as possible. You will be informed of your right to file a complaint with the FCC. The telephone company may
make changes in its facilities, equipment, operations or procedures that could affect the proper functioning of your
equipment. If they do so, they will notify you in advance to give you an opportunity to maintain uninterrupted
telephone service. In addition, the telephone company may ask that you disconnect this equipment from the
network until the problem has been corrected or until you are sure that the equipment is not malfunctioning.

- 3 -

FCC Regulations (continued on next page)

REGULATIONS DX-120 Installation Manual - Technical Manual Vol I

FCC Regulations (continued)

TERMS AND DEFINITIONS

Service Order Code (SOC)

Defines type of service and system protection.

EXAMPLES

• 9.0F = analog service, full protection to the network from systems using live

voice. Only registered terminal equipment can be connected to station ports.

• 6.0Y = digital service, provides total protection, including billing protection and

encoded analog content.

Facilities Interface Code (FIC)

A tariff reference used by customers to order correct facilities to be provided by the telco.

EXAMPLES

• 02LS2 = analog service, 2-wire, local switched access, loop-start

• 02RV2-T = analog service, 2-wire, local switched access, reverse-battery

• 04DU9-1SN = digital service, 1.544 Mbps ANSI ESF and B8ZS without line

power

Ringer Equivalence Number (REN)

Useful in determining the quantity of devices that may be connected to the telephone line and still have all of those
devices ring when the telephone number is called. In most, but not all areas, the sum of the REN’s of all devices
connected to one line should not exceed five (5.0). To be certain of the number of devices that you may connect to
your line, you may want to contact your local telephone company to determine the maximum REN for your calling
area.

Universal Service Order Code Connector (USOC Code)

Defines the FCC Part 68 approved telco provided connector, electrically and mechanically, required to interface
with the customer equipment. To avoid legal, warranty, insurance, and casualty problems, do not pass anything
through the network connector other than those permitted in the FCC Part 68 RJ series connectors. Definitions of
connectors are as follows:

EXAMPLES

• RJ21X is a 25 line, 2-wire, T/R, 50 position connector,

• RJ48C is a single line, 4-wire, T/R, T1/R1, 1.544 Mbps, 8-position connector.

- 4 -

Regulations (continued on next page)

DX-120 Installation Manual - Technical Manual Vol I REGULATIONS

Regulations (continued)

INDUSTRY CANADA RF EMISSION INFORMATION

This digital device does not exceed the Class A limits for radio noise emissions from digital apparatus set out in
Radio Interference Regulations of Industry Canada.

Le pre’sent appareil nume’rique n’emet pes de bruits radioe’lectriques de’passant les limits applicables aux
appareils nume’riques de la class A prescrites dans le Re’glement sur le brouillage radioe’lectrique e’dicte’ par le
ministe’re des Industry Canada.

INDUSTRY CANADA TELCO INFORMATION

NOTICE: The Industry Canada label identifies certified equipment. This certification means that the equipment

meets certain telecommunications netwo rk protective, opera tional and sa fety requ iremen t s. Industry Canada does
not guarantee the equipment will operate to the user’s satisfaction.

Before installing this equipment, users should be sure that it is permissible to be connected 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 associated with a 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 condition may not prevent degradation of service in some situations.

Repairs to some certified equipment should be made by an authorized maintenance facility designated by the
supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.

Users should be sure 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 together. This precaution may be
particularly important in rural areas.

CAUTION

Users should not attempt to make such connections themselves, but should
contact the appropriate electrical inspection authority, or electrician, as
appropriate.

NOTICE

The ringer equivalence number (REN) assigned to each terminal d evice provides
an indication of the maximum number of terminals allowed to be connected to the
telephone interface. The termination on an interface may consist of any
combination of devices subject only to the requirement that the sum of the ringer
equivalence numbers of all the devices does not exceed 5.

Industry Canada TELCO Information (continued on next page)

- 5 -

REGULATIONS DX-120 Installation Manual - Technical Manual Vol I

Industry Canada TELCO Information (continued)

AVIS

L’etiquette de Industrie Canada identifie le materiel homologue. Cette etiquette
certifie que le materiel est conforme a certaines normes de protection,
d’exploitation et de securite des reseaux de telecommunications. Le Ministere
n’assure toutefois pas que le materiel functionnera a la satisfaction de l’utilisateur.
Avant d’installer ce materiel, l’utilisateur doit s’assurer quil est permis de le
raccorder aux installations de l’entreprise locale de telecommunication.

Le materiel doit eqalement etre installe en suivant une methode acceptee de
raccordement. L’abonne ne doit pa s oublier qu’il est possible que la conformite
aux conditions enoncees ci-dessus n’empeche pas le degradation du service
dans certaines situations. Les reparations de materiel ho mologue doivent etre
effectuees par un centre d’entretien ca nadien autorise desig ne par le fournissu er .

La compagnie de telecommunications peut demander a l’utilisateur de
debrancher un appareil a la suite de reparations ou de modifications effectuees
par l’utilisateur ou a cause de mauvais fonctionnement. Pour sa propre
protection, l’utilisateur doit s’assurer que tous les fils de mise a la terre de la
source d’energie electrique, des lignes telephoniques et des canalisations d’eau
metalliques, s’il y en a, sont raccorde ensemble. Cette precaution est
particulierement importante dans les regions ruales.

AVERTISSEMENT

L’utilisateur ne doit pas tenter de faire ces raccordements luimeme; il doit avoir
recours a un service d’inspection des installations d’inspection des installations
electriques, ou a un electricien, selon le cas.

AVIS

L’indice d’equivalence de la sonnerie (IES) asssigne a chaque dispositif terminal
indique le norbre maximal de terminaux qui peuvent etre raccordes a une
interface. La terminaison d’une interface telephonique peut consister en une
combinaison de quelques dispositifs, a la seule co ndition que la som me d’indices
d’equivalence de la sonnerie de tous les dispositifs n’excede pas 5.

- 6 -

DX-120 Installation and Maintenance Manual

SECTION 1 - INTRODUCTION

USING THIS MANUAL

This publication contains a technical discussion of the digital telephone system. It provides step-by-step
instructions for installation. You should become familiar with this manual before you attempt to install the system.
This manual provides the following information:

• Regulatory and Safety Considerations

• Description of the hardware

• An understanding of the operational characteristics of the system hardware compon ents

• Instructions for installing the cabinet, printed circuit boards, and ancillary equipment

HINT

It is also a good idea to review the companion document for this Insta llation Manual:
DX-120 Programming and Maintenance Manual - Technical Manu al Vol II.

All of the Vertical publications are available for download from Vertical’s Customer Care Center, located at http://
www.vertical.com/ccc. Should you need hard copies of these publications, contact your Vertical inside sales
representative.

Vertical Communications, Inc.

Inside Sales Department

106 Cattlemen Road

Sarasota, Florida 34232

1-800-Comdial

- 7 -

USING THIS MANUAL DX-120 Installation and Maintenance Manual

Locating Documentation

Vertical tech nical publications are numbered according to their intended function. Various publications pertaining
to the products offered by Vertical can be found at http://vertical.com/ccc. If you are unfamiliar with the CCC,
please contact Technical Support for details about logging in.

Document Prefix Document T ype Purpose

AG Attendant Guide Contains information required for pro-

gramming and using a system attendant.

FLDII Field Installation Instructions Contains basic information as a quick ref-

erence for programming in the field (vs.
remote programming)

GCA General and Descriptive Information

(generally refers to Vertical documents
created or edited prior to 11/06)

IMI
or
IM

PRG

or

PRGM
PRN Product Release Notice Contains information about any new prod-

QR Quick Reference Provides concise, abbreviated installa-

SAB Service Advisory Bulletin Provides information to alert the field

SRN Software Release Notice Provide information about a new software

SUPG Supervisor’s Guide Provides information specific to supervi-

Installation and Maintenance
Instructions

Programming Instructions Provides programming information

Provides general information for the oper­ation of features or hardware. This may
include programming manuals as well as
user guides.

Provides instructions for Installing and
Maintaining various Vertical (Comdial)
products.

required for a particular product.

uct that may have recently been released

tion, programming, or operating informa­tion in a one or two page document.

about specific service related issues.

release. These notices may be for new
feature releases or maintenance.

sor’s on particular systems that allow a
supervisor to use and program a variety of
additional features.

TAB Technical Advisory Bulletin Publications that are intended to offer spe-

cific technical information related to a par­ticular product.

UG User Guide Provides information specific to end-users

(e.g., those who use a phone at their desk
vs. someone who installs and/or programs
the system).

- 8 -

DX-120 Installation and Maintenance Manual OVERVIEW

OVERVIEW

The Vertical DX-120 is a fully digital hybrid key telephone system. The DX-120 uses a mix of “loop start” central
office (telephone company) line interfaces and digita l lines such as T1 or ISDN (T1-PRI), along with a mix of analog
and digital extension ports to provide office communications and connectivity to the Public Switched Telephone
Network (PSTN).

The DX-120 delivers a vast array of office productivity features and telephone use enhancing features, including
Caller Identification (requires telephone company subscription), in the standard package. Unlike most systems that
support Caller ID, the DX-120 supports Caller ID to DX-120 proprietary digital extensions and to third-party, Caller
ID capable analog devices (cordless telephones, etc.)

Although most features are standard, the DX-120 provides for several optional features to further enhance office
communications. Built-in voice processing integration packages include:

• Automated Attendant

• Four port, Flash-based Voice Mail/Auto Attendant (expandable to 8 ports)

• Four port, Hard drive-based Voice Mail/Auto Attendant (expandable to 8 ports)

The DX-120 platform allows you to use these voice processing platforms without losing valuable system port
resources.

The DX-120 is comprised of an application config ured, exp andable Key Service Unit (KSU) platform. There is one
fully-featured Digital Executive Telephone (DET) that delivers access to all system functions. The system
architecture provides an expandable interface for digital port growth and analog port growth. The basic
configuration supports both device types. Analog ports might be used for plain old telephones, fax machines,
modems, etc. The DX-120 is designed to meet the telecommunications needs of small-to-medium business
offices.

System Technology

• The DX-120 incorporates state-of-the-art digital technology for voice switching and call processing, using

Pulse Code Modulation and Time Division Multiplexing (PCM/TDM).

• The DX-120 is a non-blocking switch, with no loss or degradation of voice signals.

• The system is stored-program control and uses a ARM7 main microprocessor and peripheral devices

(extensions and CO lines) in a distributed processing configuration.

• Memory consists of 640K bytes of ROM (Read Only Memory) and 384K bytes of RAM (Random Access

Memory). The RAM is lithium battery protected.

• The maximum system configuration is 16 loop start, 24 digital lines, 88 extensions (80 digital and 8 analog)

and 8 voice processing channels.

- 9 -

System Technology (continued on next page)

OVERVIEW DX-120 Installation and Maintenance Manual

System Technology (continued)

AVAILABLE EQUIPMENT FOR THE DX-120

DEVICE PART # CHARACTERISTICS

KSU1 7201 8 digital extension ports

4 analog device ports
4 CID-ready CO line ports.
2 music source inputs, can be assigned as desired to CO lines for hold music/messages
1 power failure port (CO line 1).
1 control contact (LBC, Gate, External Page Control)
1 external paging equipment interface
2 serial ports
PC-DBA programming
SMDR (Station Message Detailed Recording)

OPTIONAL EQUIPMENT
KSU2 7202 • Used to expand the system capacity beyond KSU1 limits.

• 8 digital extension ports

• 4 CO line ports

• 1 power failure port (CO line circuit 1).

DPM8 7220 • Digital Port Module - 8 circuit

• Installs into KSU1 or KSU2

APM4 7230 • Analog Port Module - 4 circuit

• Always factory-installed into KSU1; can also be connected to KSU2 via dedicated cable

COM4 7210 • CO line Module - 4 circuit with one power failure port on first CO line circuit

• Installs into KSU1 or KSU2

MDM 7249 • Modem Module, for use with off-site programming.

• Installs into KSU1 only.

AAM 7240 • Automated Attendant Module

• 4 port, one menu for routing

• 10 announcements for various caller greetings. Installs into KSU1 only

DPM16 7221 • Digital Port Module - 16 circuit

• Installs into KSU1 or KSU2

T1 7 290 • T1 Dig ital Trunking - 24 channels
ISDN

(T1/PRI)
CO DX FLASH VM7271C • Flash-based, 4-port Voice Mail (Corporate Office DX) with Auto Attendant.

7285 • ISDN (T1/PRI) Digital Trunking - 23 channels plus D-channel

• 1.5 hours storage and 100 mailboxes.

CO DX HD VM 7270C • Hard Drive-based, 4-port Voice Mail (Corporate Office DX) with Auto Attendant and on-

board modem.

• 100 hours storage and 100 mailboxes.

CO DX 4-port
Expansion VM

7273 • 4 port expansion to 7271C or 7270C.

- 10 -

DX-120 Installation and Maintenance Manual OVERVIEW

Configuration

The Vertical DX-120 platform is comprised of one full-featured key telephone model and two modular KSUs (Key
Service Units). Several modules are available for enhanced system applications and configuration expandability.

KSU1 COMPONENTS

The CPM (Central Processor Module) is installed inside of KSU1 and connected to the 40 8M r ibbon cable J4 (also
labeled “To CPM”).

• The CPM contains:

- Two serial ports

- Two music ports

- One control contact (external paging/LBC/gate control)

- One external page equipment interface connection

- Socket connectors for the KSU2 (labeled “2nd Cabinet”), MDM, and VP modules (AAM, 7271C, and

7270C)

• The standard 408M (part of 7201) contains:

- 4 CO line ports

- 1 power failure transfer port for the first CO line circuit

- 8 digital ports

- a ribbon cable (J1, also labeled “COM4”) for connection to the COM4 module (PN 7210) in KSU1

- ribbon cable sockets (J2 and J3, also labeled “To DPM8”) for connection of DPM8 (PN 7220) or

DPM16 (PN 7221) module

• The standard APM4 (part of 7201) contains four analog device ports (installed on ribbon cable J5, also

labeled “APM4”)

KSU2 COMPONENTS

The standard 408E contains:

• 4 CO line ports

• 1 power failure transfer port for the first CO line circuit

• 8 digital ports

• a ribbon cable J1, also labeled “COM4”) for connection to the COM4 module (PN 7210)

• ribbon cable sockets J2 and J3, also labeled “To DPM8”) for connection of DPM8 (PN 7220) or

DPM16 (PN 7221) module

• a shielded cable (J4) for connection to CPM socket JP2 (also labeled “2

nd

Cabinet”) in KSU1

Configuration (continued on next page)

- 11 -

OVERVIEW DX-120 Installation and Maintenance Manual

Configuration (continued)

VOICE PROCESSING MODULES

The DX-120 provides several voice processing (or voice mail) options. The optional voice processors that you can
add to the DX-120 are fixed system resources that do not require peripheral device ports (analog or digital). This
significant advantage means that the DX-120 VP options can be added to any DX-120 configuration without “port
loss” thus eliminating the ill effects of reducing the overall capacity of the system when the voice processor is
connected. Because the DX-120 doesn’t use conventional peripheral port s to interface the VPs, we refe r to the VP
connectivity in terms of “channels.”

• AAM (Automated Attendant Module): The AAM provides four channels for automated attendant operation

only. The AAM is then capable of handling four calls simultaneously. Callers answered by the AAM are
greeted by one of four greetings associated with the DX-120 mode of operation (Day / Evening / Alternate /
Temporary). Various other announcements are also included for caller processing, refer to the DX-120
Technical Manual, Volume II, Programming for fu rther details.

• 7271C (Flash-based, four port VM with Automated Attendant): The 7271 provides four channels for

automated attendant and voice mail operation. The 7271 is equipped to support up to 100 voice mailboxes
and 3.2 hours of message storage (including the various greetin g announcements).

• 7270C (Hard Drive-based, four port VM with Automated Attendant): The 7270C provides four channels

for automated attendant and voice mail operation. The 7270C is equipped to support up to 2000 voice
mailboxes and 150 hours of message storage (including the various greeting announcements).

• 7273 (Four port expansion card): T he 727 3 is added to th e 7271 C or 7270 C to increa se the tot al nu mber of

voicemail ports from four (4) to eight (8).

NOTE

• For details on installing the 7271C and 7270C refer to the Corporate Office DX

Installation Instructions.

• All of the these voice proces so rs ar e co nn ec te d to th e DX-1 2 0 CPM via

specific interface sockets.

- 12 -

Configuration (continued on next page)

DX-120 Installation and Maintenance Manual OVERVIEW

Configuration (continued)

CONFIGURATION TABLE

SYSTEM CONFIGURATION

Equipment

KSU1*

7201P-00
71201P-04

(one APM4
included as
standard)

T1 or Digital Analog Digital Analog

COM4 DPM8 DPM16 ISDN APM4 Trunks Trunks Stations Stations

484
14164
24244
11 4 32 4

1884
11 8 16 4
12 8 24 4
111 8 32 4

14244

24404
11 8244
12 8404

1 24 \ 23 4 8 4
1124 \ 234164
2124 \ 234244
111 24 \ 234 32 4

1124 \ 23884
1 1 1 24 \ 23 8 16 4
1 2 1 24 \ 23 8 24 4
1111 24 \ 238 32 4

11 24 \ 234 24 4

21 24 \ 234 40 4
1 1 1 24 \ 23 8 24 4
1 2 1 24 \ 23 8 40 4

*This configuration does not allow space for voicemail.

System Configuration (continued on next page)

- 13 -

OVERVIEW DX-120 Installation and Maintenance Manual

SYSTEM CONFIGURA TION (continued)

Equipment

COM4 DPM8 DPM16

T1 or Digital Analog Digital Analog
ISDN

APM4

Trunks Trunks Stations Stations

KSU1*

7201P-08

KSU2

7202P-00

adds to
KSU1

configuration

(KSU2 does
not come with
an APM4.

However, one
can be added
via the dedi­cated cable)

1 24 \ 23 4 8 4

1124 \ 234164

11 24 \ 234 24 4

48
1416
2424
11 4 32

188
11 8 16
12 8 24
111 8 32

1424
2440

11 824
12 840

1484
114164
214244
11 1 4 32 4

11884
11 1 8 16 4
12 1 8 24 4
111 1 8 32 4

11 4244

21 4404
111 8244
121 8404

Maximum Capacity KSU1 24 8 40 4
Maximum Capacity KSU2

8 40 4

TOTAL SYSTEM CAPACITY 24 16 80 8

*This configuration does not allow space for voicemail.

- 14 -

DX-120 Installation and Maintenance Manual OVERVIEW

Key Service Unit

The DX-120 Key Service Unit (KSU) is a modular flat-pack design. Two KSU’s (KSU1 and KSU2) may be
equipped to achieve the total system capacity of 16 loop start, 24 digital lines, 88 extensions (80 digital and 8
analog) and 8 voice processing channels. KSU1 is factory equipped with one 408M, one APM4 and the CPM.
KSU2 is factory equipped with one 408E.

Each KSU is a self-contained cabinet with internal power supply . The power supply AC transformer voltage switch
can be set for either 117vac or 230vac operation. (It is factory set for 117vac operation.) The KSU is designed to
be mounted on the wall and is shipped with a wall mounting template. The compact KSU weighs less than 20
pounds and is UL Listed.

DX-120 Key Service Unit (KSU)

You can remove:

• Or reposition four panels installed over various KSU openings to accommodate
exterior connection requirements.

• One panel to route a serial cable through the KSU outer housing for connection of
ancillary SMDR equipment.

• Another panel to route a serial (NULL Modem) cable through the KSU outer housing
for direct connection of a PC for on-site PC-DBA programming.

• Or reposition the remaining KSU panel to accommodate cables entering through the
outer housing for connecting station/extension cables or to the MDF.

• The panel covering the jacks on the phone boards (located under the left side of the
main board).

NOTE

From the exterior, with covers in place, the KSU1 and KSU2 look identical.
However, KSU1 contains the CPM (system call processing).

- 15 -

OVERVIEW DX-120 Installation and Maintenance Manual

Power Supply

The power supply circuitry of the DX-120 incorporates a linear design AC transformer with a choice of input
voltage. The voltage selector switch is shippe d set for 117vac applications; you can also set this switch for 230vac
applications. Since the power supply is linear in design, the output voltage varies between 21.6vdc and 32vdc
depending on load and stability of the input voltage. The output voltage is delivered to the 408M (in KSU1, 408E in
KSU2) for voltage regulation. All system operation and logic volt ages are produced at the 408M/E.

Voltage Selector Switch

• Two fuses are equipped on the power supply board, one for AC input over-voltage
protection and one for DC output over-current protection.

• A main power switch is accessible when the KSU cover is in place. In the event
battery backup operation is desired the KSU power cord can be connected to a
external (ancillary) UPS (Uninterrupted Power Supply).

IMPORTANT!

It is your responsibility to match the battery requirements/UPS requirement to the
specific needs of the equipment owner. To determine the battery requirement
needs and UPS requirement, see see “Specifications” to find the current draw
and necessary Amp/Hour back up support that the battery/UPS must supply.

- 16 -

DX-120 Installation and Maintenance Manual OVERVIEW

CPM (Central Processor Module)

The CPM module is equipped standard in KSU1. This board contains all circuitry required to control the fully
equipped DX-120. The system uses the CPM to perform all digital voice switching and call processing data
switching.

The CPM has one ribbon cable connector for connection to the KSU1 408M and six (6) connector sockets for
connection of the system built-in modem, voic e pr oc essor, and second cabinet (KSU2). Since the CPM comes
installed inside of KSU1 the CPM ribbon cable is already in place and connected to the KSU1-408M J5 socket.

Assuming the orientation of the KSU1 cabinet is inst alled on the wall; the two horizontal connector sockets in the
upper right corner of the CPM are for the MDM (Modem Module). The connector socket labeled “2nd Cabinet” is
for connection to theKSU2/408E if that expansion is required. The remaining two connector sockets on the CPM,
one at the left side, the other at the right side are for the voice processor solution.

NOTE

The voice processor solution can be any of three possible choices: AAM, 7271C,
or 7270C.

• The CPM also provides the following standard connectors:

- Music Channel 1 - On Hold/Background Music Interface

- Music Channel 2 - On Hold/Background Music Interface

- Control Contact (Loud Bell / Door / External Page Control)

- External Paging Equipment Interface

- RMP Serial Port - for onsite PC-DBA system database programming

- SMDR Serial Port - for connection to ancillary SMDR/Call Accounting equipment

- T1 or ISDN (T1/PRI)

• The CPM has two option strap jumpers one for d atabase st art-up (JE1 ) and one for music cha nnel one source

(internal/external) selection (JPC1).

- JE1 Cold Start/Normal is used to force load database default factory settings. This jumper will normally

never require operation af ter the in itial power up sequence is completed. However should the need ar ise
to return the site database to the factory settings this jumper is used to perform a cold start.

- JPC1 Internal/External is used to select the Music Channel 1 source. The DX-120 provides a

synthesized music source for music on hold, in applications where no music source is available. The
synthesized tune is repeated. JPC1 is in the “EXT” (i.e, external) position when it ships from the factory.

- 17 -

OVERVIEW DX-120 Installation and Maintenance Manual

408M (KSU1 Component)

The 408M is the large circuit board that is packaged inside of KSU1. The 408M provides interface for up to four
loop-start CO lines and 8 digital extension ports. Additionally the 408M regulates the 24 volt DC power from the
source to produce all required logic voltages and operations voltages. There is also a Power Failure Port located
on the 408M that is connected to the first CO line circuit. Whenever power fails, this port becomes active with dial
tone from the CO line connected to the fir st CO line port.

APM4 Ribbon

8 Digital

Extension Ports

Cable

CPM Ribbon

Cable

Power Failure

Port

COM4 Ribbon

Cable

4 Loop Start Co

Line Ports

KSU1 shown with cover – CPM and APM4 removed (408M exposed)

• The 408M is equipped with a heartbeat LED that indicates processing activity on the PCB. The 408M

peripheral processor is operating when the heartbeat LED is flashing. The KSU1 operation LED (located
next to the power switch) is tied to the 408M heartbeat LED. Therefore, when the LED next to the power
switch is flashing, the 408M is active.

• The KSU1-408M has three ribbon cables:

- located at the upper right and oriented in a h orizont al position, the J1 cable is used to interface a COM4 if

required to expand the system CO line capacity .

- located at the upper center and orien ted in a vertical position , the J4 cable is use d to interface the DX-120

CPM.

- located at the upper center and oriented in a vertical position, the J5 cable connects to the standard

APM4 installed in KSU1.

• Each CO line circuit incorporates over-voltage protection, ring detector, loop detector, loop/pulse-dial relay,

current sink circuit, coupling/isolation transformer (impedance 600:600), hybrid circuit, CODEC & filter,
polarity guard circuit and radio frequency noise filter.

408M - KSU1 Component (continued on next page)

- 18 -

DX-120 Installation and Maintenance Manual OVERVIEW

408M - KSU1 Component (continued)

• The fourth CO line port is equipped with CNG fax tone detection circuitry. When progra mmed as a “FAX” line,

this circuit will automatically engage the FAX Tone detector. If FAX tone is detected, the system routes the
call to the analog port designated as the destination for fax calls.

• Each digital port (connects to Digital Executive Telephones and DSS Consoles) is comprised of a proprietary

octal ASIC (Application Specific Integrated Circuit) transceiver. There are three data ch annels in operation at
each digital port via the octal transceiver. One channel is used for call processing control of digital terminal
functions/operations and two channels are used for the digital voice channel requirements.

• Each digital station interface is protected against circuit wiring shorts by an over-current pro tection polyswitch.

The digital station circuit requires only on e cable pair to operate and is not polarity sensitive.

• Physical connection of digital extensions, power failure telephones, a nd CO lines to the 408M module is mad e

through convenient RJ-11 connectors along the bottom edge of the module.

408E (KSU II Component)

The 408E is very similar to the 408M; however, it is unique to KSU2. The 408E provides interface for up to 4
loop-start CO lines and 8 digital exten sion ports. In addition, the 408E regulates the 24-volt DC power from the
source to produce all required logic volt ages and oper ations volt ages. There is also a power failure port located on
the 408E that is associated to the first CO line circuit. Whenever power fails this port becomes active with dial tone
from the CO line connected to the first CO line port.

KSU2

• The 408E is equipped with a heartbeat L ED that indicate s processing activity on th e PCB; the 408E periphera l

processor is operating when the heartbeat LED is flashing. The KSU2 operation LED (located next to the
power switch) is tied to the 408E heartbeat LED, therefore, when the LED next to the power switch is
flashing, the 408E is active.

• The KSU2-408E connections are almost identical to those on the 408M (KSU1); the exception is the long

shielded cable used to connect KSU2 to the CPM inside of KSU1.

NOTE

There is no standard APM4 installed inside of KSU2. However, one can be
connected using the dedicated cable.

408E - KSU2 Component (continued on next page)

- 19 -

OVERVIEW DX-120 Installation and Maintenance Manual

408E - KSU2 Component (continued)

• Each CO line circuit incorporates over-voltage protection, ring detector, loop detector, loop/pulse-dial relay,

current sink circuit, coupling/isolation transformer (impedance 600:600), hybrid circuit, CODEC & filter,
polarity guard circuit and Radio Frequency noise filter.

• The fourth CO line port is equipped with CNG Fax Tone Detection circuitry. When programmed as a “FAX”

line, this circuit automatically engages the FAX tone detector. If FAX tone is detected, the system routes the
call to the analog port designated as the destination for fax calls.

• Each digital port (connects to Digital Executive Telephones and DSS Consoles) is comprised of a proprietary

octal ASIC (Application Specific Integrated Circuit) transceiver. There are three data ch annels in operation at
each extension port via the octal transceiver: one channel is used for call processing control of digital
terminal functions/operations and two channels are used for the digital voice channel requirements.

• Each digital station interface is protected against circuit wiring shorts by an over-curre nt protection Polyswitch.

The digital station circuit requires only on e cable pair to operate and is not polarity sensitive.

• Physical connection of digital extension terminals, power failure telephones, and CO lines to the 408M

module is made through convenient RJ-11 connectors along the bottom edge of the module.

APM4 (Analog Port Module - 4 Circuits)

The APM4 provides four separate analog device ports. This allows the DX-120 to support auxiliary office
equipment such as fax machines, PC/FAX modems, and analog telephones (single line telephones). The APM4
generates -30VDC and 20-25Hz, 50V square wave ringing for operation.

APM4 (Analog Port Module - 4 Circuits)

• The APM4 is equipped with a heartbeat LED that indicates processing activity on the PCB; the APM4

peripheral processor is operating when the heartbeat LED is flashing.

• The APM4 provides DTMF receivers for each analog port. Ancillary analog devices connected to APM4

analog ports must generate DTMF signaling.

IMPORTANT

Pulse (rotary-dial) telephones/equipment are not supported.

APM4 - Analog Port Module (continued on next page)

- 20 -

DX-120 Installation and Maintenance Manual OVERVIEW

APM4 - Analog Port Module (continued)

• All connections are via RJ-11 connectors along the bottom edge of the module. KSU1 is delivered with one

APM4 installed on ribbon connector J5 as standard equipment.

• APM4’s may be installed on 408M/E-J5 (standard in KSU1:408M-J5 or KSU2 via dedicated cable).

IMPORTANT

DO NOT A TTEMPT to install an APM4 on J2 or J3.

DPM8 (Digital Port Module - 8 Circuits)

The DPM8 module expands the DX-120 system capacity of digital ports DET (Digital Executive Telephones) and
DSS consoles. Each digital port is comprised of a proprietary octal ASIC transceiver. There are three data
channels in operation at each digital port via the octal transceiver. One channel is used for call processi ng control
of digital terminal functions/operations and two channels are used for the digital voice channel requirements. The
DPM8 is controlled directly from the 408M/E; therefore, there is no heartbeat LED located on the DPM8.

DPM8 (Digital Port Module - 8 Port)

• Each digital station interface is protected against circuit wiring shorts by an over-curre nt protection Polyswitch.

The digital station circuit requires only on e cable pair to operate and is not polarity sensitive.

• Physical connection of digital port terminals (DET and DSS) to the DPM8 module is made through convenient

RJ-11 connectors along the bottom edge of the module.

- 21 -

OVERVIEW DX-120 Installation and Maintenance Manual

DPM16 (Digital Port Module - 16 Circuits)

The DPM16 module expands the DX-120 system capacity of digital ports DET (Digital Executive Telephones) and
DSS consoles. Each digital port is comprised of a proprietary octal ASIC transceiver. There are three data
channels in operation at each digital port via the octal transceiver. One channel is used for call processi ng control
of digital terminal functions/operations and two channels are used for the digital voice channel requirements. The
DPM16 is controlled directly from the 408M/E. Therefore, there is no heartbeat LED located on the DPM16.

DPM16 (Digital Port Module - 16 Port)

• Each digital station interface is protected against circuit wiring shorts by an over-curre nt protection Polyswitch.

The digital station circuit requires only on e cable pair to operate and is not polarity sensitive.

• Physical connection of digital port terminals (DET and DSS) to the DPM16 module is made through

convenient RJ-12 connectors along the bottom edge of the module.

- 22 -

DX-120 Installation and Maintenance Manual OVERVIEW

COM4 (Central Office Module - 4 Circuits)

The COM4 module is installed in the dedicated positio n via J1 of the 408M/E. The COM 4 interfaces four loop-st art
CO lines. Since one COM4 may be installed in KSU1 and one COM4 may be installed in KSU2, you can expand
the DX-120 system loop start CO line capacity to support up to 16 loop start CO lines.

CO line Ports
1-4 (Circuit 4
Equipped
with CNG
FAX Detect)

Power Failure Transfer Port—

associated to CO Line Port 1

COM4 (Central Office Module - 4 Port)

• The COM4 module is shipped with four mounting stand-offs used to install the board into the KSU1 or KSU2.

Five RJ1 1 jacks are provided a long the bottom e dge of the COM4 module for connection of one power failu re
telephone and the four CO lines.

• CO lines are terminated at the site by the telephone company at a point of interface called the Demarcation

(Demarc). When ordering CO lines for the site, request termination on RJ11 type jacks. Doing so allows you
to easily extend the CO lines to the COM4 RJ11 connector (one CO line per jack and connector).

• Each CO line circuit incorporates over-voltage protection, ring detector, loop detector, loop/pulse-dial relay,

current sink circuit, coupling/isolation transformer (impedance 600:600), hybrid circuit, CODEC & filter,
polarity guard circuit, and Radio Frequency noise filter.

• The fourth CO line port is equipped with CNG Fax Tone Detection circuitry. When programmed as a “FAX”

line, this circuit will automatically engage the FAX tone detector. If FAX tone is detected, the system routes
the call to the analog port designated as the destination for fax calls.

- 23 -

OVERVIEW DX-120 Installation and Maintenance Manual

MDM (Modem Module)

The 7249 Modem Module is a self-contained in tegr ated mod em u nit that is installed at J5 and J6 in the upper right
corner of the CPM. The integrated MDM allows you to access the system programming and remote maintenance
utilities from an off-site location (password verification is required).

MDM (Modem Module)

• When the MDM is installed, you can program the system remotely using PC-DBA.

NOTE

PC-DBA is included in the utilities CD shipped with every new system. Or, you
can obtain PC-DBA at the Vertical web site, www.vertical.com.

• You can service the system, using PC-DBA and a modem in your PC, to place a call to the site where the DX-

120 is installed.

NOTE

If one of the voice processing systems are installed, rou tin g to th e mo d em
extension is automated. Otherwise, the person who answers this data call must
transfer the call to extension 100. Once the modems have established the data
connection, you can begin servicing the switch.

IMPORTANT

The MDM default extension number is 100. This number can be changed and
therefore may be different for some DX-120 sys tem s.

- 24 -

DX-120 Installation and Maintenance Manual OVERVIEW

AAM (Automated Attendant Module)

• The Automated Attendant Module is a self contained integrated module that enables automatic answering of

selected CO lines and a single-level menu for greeting callers and routing them to DX-120 system
destinations.

• The AAM can handle all call traffic or act as a backup to the primary answering system attendant.

AAM (Automated Attendant Module)

• The AAM is installed at J3 and J4 of the CPM (centered above the board).

• The AAM provides 10 announcements for the various modes of system/action operation: Day Greeting, Alt

Greeting, Night Greeting, Waiting Message, Invalid Message, Busy Message, No Answer Message,
Goodbye Message, Inquiry Message, and Temporary Message.

- 25 -

OVERVIEW DX-120 Installation and Maintenance Manual

T1 Card (T1 Module) Details

The T1 Card (T1 Module) allows for expansion of the DX-120 system CO line interface to a capacity maximum of
24 digital CO line ports.

T1 Module

T1 Card (T1 Module) Details

Capacity: • One (1) T1(1.544Mbps, 24channels) interface
Network interface mode • T1-Interface
Network connector •RJ-45
LED indicator • T1 Card has 9 LEDs on the PCB which indicate alarms of T1 trunk,

in-use status, and synchronous clock enable status.

LED # Function

• D2 Yellow Alarm Indicator • Normal=Dark

• Alarm = Red lit

• D3 AIS Alarm Indicator • Normal =Dark

• Alarm = Red lit

• D4 Loss of Frame Alarm Indicator • Normal = Dark

• Alarm = Red lit

• D5 No Signal Alarm Indicator • Normal = Dark

• Alarm = Red lit

• D6 PRI Link Channel Sync. • For T1 card = Always Dark

• D7 Clock Mode Indicator, • Master Mode = Dark

• Slave Mode = Green lit

• D8 T1/E1 Indicator • T1 = Green lit

•E1= Dark

• D9 Heart Beat • Normal = Flashing

• Abnormal = Dark or Steady Green lit

T1 Card (T1 Module) Details (continued on next p age)

- 26 -

DX-120 Installation and Maintenance Manual OVERVIEW

T1 Card (T1 Module) Details (continued)

• D10 Signaling Synchronization indicator • Synchronous = Green lit

• Non-Synchronous = Dark

Clock source • On-board crystal and can be set as master or slave to synchronize

with PSTN, depending upon the networking requirement.

Backplane connector • 15-pin
Backplane interface covers the following:

• Power feeding •5 VDC

• PCM highway • System will provide an 8KHz frame signal for T1 card’s

synchronization.

• Control data interface • Compatible with SPI (Serial Peripheral Interface) bus timing.

ISDN Card (T1/PRI Module) Details

The ISDN Card (T1/PRI Module) allows for expansion of the DX-120 system CO line interface to a capacity
maximum of 23 Digital CO line ports.

ISDN Card (T1/PRI Module)

ISDN Card (T1/PRI Module) Details

Capacity: One (1) T1(1.544Mbps, 24channels) interface
Network interface mode ISDN (T1/PRI) Interface
Network connector RJ-45
LED indicator ISDN (T1/PRI) Card has 9 LEDs on the PCB which indicate alarms of

T1 trunk,
in-use status, and synchronous clock enable status.

ISDN Card (T1/PRI Module) Details (continued on next page)

- 27 -

OVERVIEW DX-120 Installation and Maintenance Manual

ISDN Card (T1/PRI Module) Details (continued)

LED # Function

• D2 Yellow Alarm Indicator Normal=Dark
Alarm = Red lit

• D3 AIS Alarm Indicator Normal =Dark
Alarm = Red lit

• D4 Loss of Frame Alarm Indicator Normal = Dark
Alarm = Red lit

• D5 No Signal Alarm Indicator Normal = Dark
Alarm = Red lit

• D6 PRI Link Channel Sync. ISDN (T1/PRI) Working = Steady Green

• D7 Clock Mode Indicator, Master Mode = Dark
Slave Mode = Green lit

• D8 ISDN (T1/PRI) Indicator ISDN (T1/PRI) = Green lit

• D9 Heart Beat Normal = Flashing
Abnormal = Dark or Steady Green lit

• D10 Signaling Synchronization indicator Synchronous = Green lit
Non-Synchronous = Dark

Clock source On-board crystal and can be set as master or slave to synchronize with

PSTN, depending upon the networking requirement.

Backplane connector 15-pin
Backplane interface covers the following:

• Power feeding 5 VDC

• PCM highway System will provide an 8KHz frame signal for ISDN (T1/PRI) card’s

synchronization.

• Control data interface Compatible with SPI (Serial Peripheral Interface) bus timing.

- 28 -

DX-120 Installation and Maintenance Manual OVERVIEW

DET (Digital Executive Telephone)

The DX-120 has one model digital telephone called the Edge 120 Digital Executive Telephone.

Edge 120 DET - Digital Extension Telephone

• The DET provides:

- a speakerphone for hands-free conversations

- a two-row by sixteen column (32-character), dot-matrix, supertwist, Liquid Crystal Display (LCD)

- three interactive buttons to enhance system feature operation.

• The supertwist LCD eliminates the need for contrast adjustment, and enhances clarity of disp layed data using

an angled viewing position. Since the DX-120 includes Caller ID (CID) as a standard feature, the LCD also
provides every designated ringing extension with CID data for incoming CO line calls.

NOTE

CID requires a subscription from the servicing telephone company.

• The display also provides a visual reference to call progress and call duration, as well as time and date

information. The display enables the user to send and receive visual advisory and callback messages.
Users may select from six pre-programmed messages (i.e., “IN A MEETING,” “OUT OF OFFICE”), or they
may create a custom message. Callers from other DETs to an extension with a message active will receive
the visual advisory message on their LCD display.

• Each digital speakerphone has 30 programmable Feature Buttons to aid the user by providing direct access

to system features and resources. There are also three interactive buttons and 9 fixed function buttons.

DET - Digital Extension Telephone (continued on next page)

- 29 -

OVERVIEW DX-120 Installation and Maintenance Manual

DET - Digital Extension Telephone (continued)

• Each DET is equipped standard with a 2.5 millimeter headset jack. Users can toggle their speakerphone

operation in and out of a special “headset mode ”. This mode allows the user to easily activate the headset
jack via the ON/OFF button as an alternative to using the speakerphone. Thus, headset mode is easily
enabled or disabled so that users can quickly select between use of the headset or speakerphone
operations.

NOTE

The DET must be idle to change this setting.

• You can mount the telephone in one of three positions: low and low profile desk positions and the wall

mounted position.

• Each speakerphone is also equipped with a status lamp to aid in user operatio ns. The lamp is dual colo r (red

/ green) and indicates various modes of operation, such as messages/voice messages waiting, incoming
calls - distinctive for CO and intercom, in-use indication for speakerphone mode, headset mode, etc.

• The Multiple Call Handling utility known as Call Key (Feature Code 66) provides a method for tracking the

status for a “pool” of CO lines. More specifically, the Call Key reflects the status of any active Trunk calls for a
specific extension (assuming there is not a Line Key programmed for that individual CO line that the Trunk
call is associated with). Furthermore, users can program multiple Call Keys on their phone to allow for
tracking the status and management of additional, simultaneous Trunk calls.

• There are two types of lamp indicators on the phone: General and Hold. General lamp indicators ap pear next

buttons to provide general call status. The Hold lamp indicators provide status with regard to any calls on
hold (either trunk or intercom). Refer to the Edge 120 DET User Guide for more information.

DSS (Direct Station Selection) Console

The DSS console is a digitally interfaced component of the DX-120. It connects to the system via any available

digital port (408M/E, DPM8, DPM16 digital port).

DSS (Direct Station Selection) Console

DSS Console (continued on next page)

- 30 -

DX-120 Installation and Maintenance Manual OVERVIEW

DSS Console (continued)

• The DSS has 64 programmable buttons with dual color (red / green) LEDs and may be assigned any system

feature code or directory number. These buttons may be assigned for either system fe at ur es operations or
CO line access operations.

• You can mount the DSS console in one of three positions: low and low profile desk positions and the wall

mounted position. DSS consoles are programmed to operate with an associated speakerphone.

• You can assign up to four DSS consoles per speakerphone. The maximum number of DSS consoles

supported by the DX-120 is 12.

• Each equipped DSS console requires one digital port, therefore the total number (system capacity) of

speakerphones possible is reduced by one for each DSS console installed.

Specifications

CURRENT DRAW

Use this chart to calculate the Amphour requirements of the DX-120 system based upon its configuration. This
information is typically used to apply UPS battery requirements.

Current Draw

Component

KSU1 (7201) 0.18A 1 0.18A
KSU2 (7202) 0.17A 1 max.
COM4 (7210) 0.02A 2 max.
DPM8 (7220) 0.01A 4 max.
APM4 (7230) 0.08A 3 max.
MDM (7249) 0.01A 1 max.
AAM (7240) 0.01A 1 max.
7271C 0.02A 1 max.
7270C 0.01A 1 max.
DET (7261-00) 0.016A 80 max.
DSS (7262-00) 0.016A 12 max.
Station wi re :

per DET, DSS, and IST

Multiply the unit times the quantity installed in the subject application (site) and add the right
column for the total current draw (Amps) @ 117VAC for this site.

(Amps) @ 117

VAC

0.02A every 100
ft. of 24AWG

Quantity

?

Extended

Total Amps

- 31 -

Specifications (continued on next page)

OVERVIEW DX-120 Installation and Maintenance Manual

Specifications (continued)

SYSTEM CRITERIA AND CAPACITY

System Criteria and Capacity

Time slots PCM - 32 time slots x 8 Highways (256 voice channels)

TDM 64 Time Slots (data processing)

Customer database memory protection 300 hours via on-board lithium battery (no charging required)
Ports:

CO/PBX/Centrex Lines
Digital Stations
Standard Single Line Telephones

DTMF Receivers: One dedicated per single line telephone port
DTMF Senders: Unlimited

16
48
16*

*There are 32 total possible digital extensions in this configuration.

DTMF signal generation is derived from the core system tone
resource. Tone combinations are available as needed.

Tone Detectors: (used to monitor call
progress tones; Busy Tone, Ring-back
Tone, etc.)

Contacts 1 LBC can be programmed as associated to a CO line or dialed by an

Conference circuits 8 - 4 party conference circuits
DISA circuits Any number of CO lines may be programmed for DISA operation.

System Attendants 1 Attendant + 1 alternate per tenant group
Tenant Groups 3
UCD/Hunt Groups:

Members per group:
Group Types:
Hunting Method:

2 (shared for advanced call processing system features; DISA, ECF,
ABR. etc.)

extension to actuate the contact

(AAM required for operation.)

24
24
UCD or Voice Announce
Linear, All Ring or Distributed

System Criteria and Capacity (continued on next page)

- 32 -

DX-120 Installation and Maintenance Manual OVERVIEW

System Criteria and Capacity (continued)

Voice Mail Groups
Members (ports)
Integration Method
VM message waiting
VM control codes

CO line loop current sensing Interrupt programmable from 50ms to 2500ms.
Paging 8 Internal Page Extension Groups

1 per Tenant (uses 1 UCD Group per VM system)
24
Digital (ICD Voice) and In-band (for other)
#96 + station number to turn VM button LED on.
#*96 + station number to turn VM button LED off
Disconnect Digits: 8 digits max.
Subscriber Calling via Intercom: 4 digits max.
Transfers to VM : 4 digits max.
Busy Forward: 4 digits max.
No Answer Forward: 4 digits max.
Direct Call Forward: 4 digits max.
CO Line Recall: 4 digits max.
CO Line Ringing: 4 digits max.
UCD Overflow: 4 digits max.
Record Digits for Voice Recorder function: 4 max.
Delete Digits: 4 digits max.
Suffix for transferred calls: 2 max.

1 External Page Port
1 Internal All Call
1 System (Internal/External) All Call

Speed Dialing 1000 total bins, dynamically allocated.

200 bins at default allocated for system-wide use.
20 bins at default allocated for extension use (extensions 101-148

only) (50 possible per extension)
16 digits maximum per bin.

Last Number Redial 16 digits per station
Save Number Redial 16 digits per station
User Saved Number (Memo Pad) 20 digits per station
Callback request per station 1
Camp On by a busy station 1
Stations Camped on to a station 1
Stations Camped on to a busy line 1
Message - Executive Notification 6 pre-programmed

1 personal per station

Message - Executive Preprogrammed 6 pre-programmed

1 personal per station

System Criteria and Capacity (continued on next page)

- 33 -

OVERVIEW DX-120 Installation and Maintenance Manual

System Criteria and Capacity (continued)

Message Waiting 40 simultaneous maximum per system (does not affect VM message

indications)

Name in Display 1 per station, 7 characters max.
Class Of Service (COS) 8 (0-7) per Day, 8 (0-7) per Night
Toll Restriction To/From Tables 100 Tables per tenant, 10 digits per entry, Day and Evening COS

assignable per entry per CO Line and Extension.

Forced Verified Account Codes 600 codes, 2-8 digits max., each assigned a COS
Unverified Account Codes 8 digits max.
Call Pick Up Groups 8 extension groups
Station Lock Password 4-8 digits per extension
CDB Programming Password 8 alphanumeric characters (“________” eight spaces at default);

default password when programming via DET ”########” (eight
pound signs)

System Reminder Alarm 8 time settings per tenant group
Station Alarm 1 per station repeating or one time
Ring Schemes 8
Distinctive Ring Tones 8 per station
External Call Forward via extension call forward settings

- 34 -

Specifications (continued on next page)

DX-120 Installation and Maintenance Manual OVERVIEW

Specifications (continued)

ELECTRICAL DATA

Electrical Specifications

AC Power source Dedicated 117/230vac +
Power consumption 1.5A maximum @ 120vac (180 watts)
Power Supply fuse

AC input:
DC output:

Idle Channel Noise -74 dB
Cross Talk Attenuation 75 dB (@ 1kHz)
Ringing Sensitivity 40v RMS 25 Hz
Ringer Equivalence Number 1.5
CO Line Signaling DTMF amplitude (-5 dB,-7 dB) +- 2 dB, @ approx. 2 Vpp

Music source / Background Music 0 dBm at 600 ohm input impedance
Contact rating (Option Module LBC) 1A @ 30VDC

External Page Port 0 dBm at 600 ohms

2A 250v
1A 125v

Pulse Dialing ratio 60/40 @ 10 PPS

0.5A @ 90VAC 30Hz
1/8th inch phono jack

1/8th inch phono jack

15%, 47-63Hz single phase

ENVIRONMENTAL DATA

Operating Temperature
Recommended Operating Temperature
Storage Temperature
Operating Relative Humidity 5% to 90% (non-condensing)
Heat Dissipation (BTU) 300

Environmental Specif ications

o

0

to 35o C, 32o to 95o F

o

to 78o F

70

o

to 104o F

32

- 35 -

Specifications (continued on next page)

OVERVIEW DX-120 Installation and Maintenance Manual

Specifications (continued)

UNIT (COMPONENT) DETAIL

UNIT SPECIFICATIONS

Part Number Description Dimensions: Weight
7200 CPM Central Processor Module L

7201P/7202P KSU1/KSU2 L

7210 COM4 Central Office Module – 4 Port L

7220 DPM8 Digital Port Module – 8 Port L

7221 DPM16 Digital Port Module – 16 Port L

7230 APM4 Analog Port Module – 4 Port. L

7240 AAM Automated Attendant Module L

W
H

W
H

W
H

W
H

W
H

W
H

W
H

210 mm
138 mm
18 mm

460 mm
270 mm
105 mm

210 mm
138 mm
18 mm

210 mm
138 mm
18 mm

210 mm
138 mm
18 mm

210 mm
138 mm
21 mm

140.1 mm
105 mm

2.22 mm

8.25 in.

5.5 in.
.75 in.

18.4 in.

10.8 in.

4.2 in.

8.25 in.

5.5 in.
.75 in.

8.25 in.

5.5 in.
.75 in.

8.25 in.

5.5 in.
.75 in.

8.25 in.

5.5 in.
.0875 in.

5.515 in.

4.135 in.
.0875 in.

0.4Kg

4.0Kg

0.3Kg

0.28Kg

0.4Kg

1.2Kg

0.09 Kg

7248 408M Standard 4 CO Line x 8 Digital

Extension Module

7249 MDM Modem Module L

7261-00 DET

Digital Executive Telephone
(LCD Speakerphone)

7262-00 DSS Console L

Unit Specifications (continued on next page)

- 36 -

L
W
H

W
H

L
W
H

W
H

210 mm
138 mm
18 mm

75.05 mm

55.12 mm

13.33 mm
230 mm

182 mm
140 mm

241 mm
202 mm
93 mm

8.25 in.

5.5 in.
.75 in.

2.955 in.

2.170 in.

0.525 in.
9 in.

7.25 in.

5.5 in.

9.5 in.
8 in.

3.75 in.

0.4Kg

0.3Kg

1.7Kg

1.7Kg

DX-120 Installation and Maintenance Manual OVERVIEW

UNIT SPECIFICATIONS (continued)

Part Number Description Dimensions: Weight
7270 CO DX HD L

7271C CO DX FLASH L

7285 ISDN (T1/PRN) Module L

7290 T1 Module L

WIRING DATA

Maximum Cable Length

DET (distance measures in linear feet of
cable from KSU to DET)

Standard Single Line Telephone (dis­tance measures in linear feet of cable
from KSU to IST)

210 mm
138 mm

W

21 mm

H

210 mm
138 mm

W

21 mm

H

210 mm
138 mm

W

17.4 mm

H

210 mm
138 mm

W

17.4 mm

H

26 AWG - 255m (850 ft.)
24 AWG - 425m (1416 ft.)
22 AWG - 700m (1983 ft.)

26 AWG - 195m (650 ft.)
24 AWG - 340m (1133 ft.)
22 AWG - 476m (1586 ft.)

8.25 in.

5.5 in.
.0875 in.

8.25 in.

5.5 in.
.0875 in.

8.25 in.

5.5 in.
.69 in.

8.25 in.

5.5 in.
.69 in.

0.342Kg

0.233Kg

0.184Kg

0.184Kg

SIGNALING (CENTRAL OFFICE-PSTN) DATA

Dialing Specifications

DTMF Dialing Mode
Frequency deviation:
Rise time:
Duration of DTMF signal:
Inter-digit time:
VM Port DTMF duration:
VM Port Inter-digit time:

Pulse Dialing Mode
Pulse dial rate:
Pulse Make/Break ratio:

+

1%
3ms
programmable 50-150ms (70ms default)
programmable 50-150ms (70ms default)
programmable 60-150ms (120ms default)
programmable 60-150ms (120ms default)

10 pulses per second
60/40

Specifications (continued on next page)

- 37 -

OVERVIEW DX-120 Installation and Maintenance Manual

Specifications (continued)

REGULATORY DATA

FCC Registration Numbers

For systems configured for key system operation (each
CO line appears on its own dedicated button).

For systems configured for hybrid operation (CO lines
may be accessed by dial codes and Pool/Loop buttons).

SIGNALING (INTERNAL) DATA

Signal Frequency Cadence
CO Line Ringing:

Scheme 0
Scheme 1
Scheme 2
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Scheme 7
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT

Audible Signals

N/A
N/A
N/A

-SL T bell-

D6XTAI-40144-KF-T

D6XTAI-40145-MF-T

300ms On, 400ms Off, 300ms On, 4 seconds
Off

1 second On, 3 seconds Off
1 second On, 3 seconds Off
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected

Intercom Ringing:
Scheme 0
Scheme 1
Scheme 2
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Scheme 7
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT

Message Wait Callback follows ring cadence of Ring Scheme selected

N/A
N/A
N/A

-SL T bell-

1 second On, 3 seconds Off
1 second On, 3 seconds Off
300ms On, 400ms Off, 300ms On, 4 seconds

Off
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected
follows ring cadence of Ring Scheme selected

Specifications (continued on next page)

- 38 -

DX-120 Installation and Maintenance Manual OVERVIEW

Specifications (continued)

MTBF (MEAN-TIME BETWEEN FAILURE) DATA

Mean-Time Between Failure Analysis

System Components

Cabinet Assembly 86.0
Power Supply Unit 170.0
CPM 2,915.7
408M 11,407.3
DPM8 3560.8
DPM16 121,654.5
COM4 6,146.5
APM4 6,860.2
MDM 761.0
AAM 2,337.3
T1 318,076.27
ISDN (T1/PRI) 257,340.64
Method:

Use the figures above for each unit installed (or to be installed)
and calculate the total for this system configuration.

Use the total from step 1 in place of the variable “x” in the formula
at the right to calculate MTBF for this system configuration.

(1 ³ )x(109) = MTBF hours

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THIS PAGE INTENTIONALLY LEFT BLANK

DX-120 Installation and Maintenance Manual

SECTION 2 - INSTALLATION

INSTALLING THE DX-120

Proper installation of the Vertical DX-120 is essential to assure optimum system operation. You must follow these
procedures to reduce system problems resulting from improper inst allation and to reduce the potential of
experiencing problems while bringing the DX-120 on-line.

Installation Overview

The following steps provide an overview of the installation process. Det ails on each of these ste ps ar e contain ed in
the following sections of this chapter. Be sure to read the detailed instructions before installing the DX-120.

A) Plan the installation, including the KSU1 or KSU1 and KSU2 and Main Distribution Frame (MDF) location,

station locations, cable runs, and optional equipment.

B) Assemble the correct tools and supplies: UTP telephony grade cable/wiring, miscellaneous telephony

hardware, 66 blocks, modular wall jacks, etc.)

C) Run the wiring for speakerphones, DSS consoles and analog devices (FAX machines, modems, etc.) from

the MDF to each location.

- Wiring topology is referred to as “star-wiring” configuration; no cable should loop from one telephone

location to another.

D) Run cable/wiring to any optional equipment, such as external paging equipment, loud bell signaling devices,

music sources, etc.

E) Mount the MDF backboard and attach the termin al blocks o n the backbo ar d. Use a dedicated MDF with 66

block wiring field to promote full serviceability of the system and connections using proven techniques.

- If you route extension cables into the KSU, you have to terminate one cable pair into standard crimping

modular connectors for each cable.

CAUTION

Although you can route the extension cable/wiring dire ctly into the DX-120 KSU1/
KSU2 housing and connect directly to the appropr iat e inte rf ac e mo d ule (408M ,
DPM8, DPM16, APM4, COM4, CPM), Vertical does not recommend this method
since it makes it difficult to service the system.

F) Mount the KSUs on the MDF backboard, using the mounting template provided.
G) Ground the KSU1 (and KSU2 if applicable) to a known “good” earth ground.
H) Install optional expansion modules (COM4, DPM8, DPM16, APM4) inside the KSU as required.

• APM4 is factory installed in KSU1. However, one can be installed in KSU2 via the dedicated cable.

I) Install optional features modules (AAM, 7270C, 7271C, or MDM) inside the KSU as required.
J) Install the telephone instruments and an y optional telephone equipment, such as headsets or single line

telephones.

- 41 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Site Planning

The first step in site planning is establishing suitable environmental conditions for the system.

A) Place KSU1, and KSU2 if applicable, within 5 feet (1.5 meters) of an isolated, dedicated, 105-125VAC,

57-63Hz, 15A, single-phase commercial power source.

CAUTION

• This must be an isolated, dedicated AC circuit for proper operation.

• Run all three wires (power, neutral, and ground) separately from the

outlet to the breaker panel, without being bonded to any other wire or
circuit.

• Do not plug any other equipment into this outlet.

• To maintain the protection provid ed by the isolated, dedicated circuit, the

length of the AC power cord limits the distance between th e KSU and the
outlet.

• To protect the system from lightn ing damage or other AC power line

disturbances, install a surge protector.

• Do not use an extension cord.

• Select the KSU location to minimize cable run length. Terminal

equipment connected to the system must not exceed specified limits (see
see “Specifications” ).

• The KSU location should not be exposed to direct sunlight, high

humidity, heat, dust, or str ong magnetic fields (such as those generated
by heavy motors, copy machines and some kitchen appliances).

• The DX-120 system must be installed in a climate controlled environment.

This equipment cannot function in environments above 95 degrees
Fahrenheit ambient temperature.

B) The MDF should consist of a 3/4-inch plywood backboard large enough to mount all hardware and

equipment allowing all components ample space for adequate ventilation and servicing. Allow additional
room for external apparatus, if used.

C) For cooling purposes, ample air space (at least four inches on the top, bottom, left and right sides) must be

provided for the KSU.

D) SMDR/SMDA output devices must be placed within 50 feet (15 meters) of the KSU (limited by RS-232C

standard wiring practices).

E) The equipment should be located in a climate-controlled room adhering to the environmental specifications

listed in see “Environmental Data” .

CAUTION

• When installing the KSU and station instruments, allow a sufficient

margin for error in case of air conditioning failure, routine maintenance,
plant shutdown, etc.

• As a general rule, if conditions are suitable for office personnel, they are

also suitable for KSU and terminal equipment operation.

• A properly controlled environment will help to extend the operating life of

the equipment.

Site Planning (continued on next page)

- 42 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Site Planning (continued)

• The following statements are from UL 1459, a product safety specification governing telephone equipment:

- Never install telephone wiring during a lightning storm.

- Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

- Never touch non-insulated telephone wires or terminals unless the telephone line has been disconnected

at the network’s interface.

- Use caution when installing or modifying telephone lines.

CAUTION

Per Underwriters Laboratories regulation 1950, TNV wiring to outside pl ant leads (e.g. central
office trunk wiring) must be 26 AWG gauge minimum.

Tools and Supplies

Assemble the correct supplies and tools to install the Vertical DX-120.

• Use UTP (Unshielded, Twisted-Pair) three or four pair (recommended) cable to run from the MDF to all

extension terminals (DETs, DSS consoles, and analog devices). DETs only need one twisted p air to operate.
Additional pairs are always recommended to allow for future potential uses.

• Six conductor modular jack assemblies for all station instruments (recommended).

• Standard punch-down terminal blocks (66M1-50 type) as required.

• Four or six conductor crimping modular plug assemblies for each port interface.

• AC voltage surge/spike protector.

• Stan dard telephone hand tools a nd mounting hardware fo r the KSU(s), MDF backboard, pun ch-down terminal

block(s), modular jack assemblies for CO lines, etc.

Preparing the Main Distribution Frame

The MDF is the point at which the KSU, terminal equipment, CO lines, and miscellaneous equipment connect to
one another. It is extremely important that you make the connections carefully and accurately.

ASSEMBLING THE MDF

Follow these steps to assemble the MDF.

1) Mount a sufficiently sized, 3/4-inch plywood backboard at the proper location to use as the MDF
termination and equipment mounting board.

2) Plan the layout of all required MDF components allowing for expansion. This may include: KSU1,
KSU2, 66M1-50 termination blocks, cable fastening hardware, and miscellaneous third-party
communications equipment (paging equipment, etc.).

3) Locate the Telco-provided CO/Centrex lines at the DEMARC (Demarcation) and extend them to the
MDF location.

4) Lo ca te a suitable, know n- g oo d earth ground preferably within 10 feet of the MDF an d ro ut e a
#10AWG grounding wiring from the point of grounding to the MDF for connection to the KSU.

5) Install all telephone cabling and route to the MDF location for termination.

6) Mount all equipment and termination hardware as required to interconnect terminal devices and KSU
modules.

Preparing the Main Distribution Frame (continued on next page)

- 43 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Preparing the Main Distribution Frame (continued)

KSU COMPONENTS AND INSTALLATION

• KSU1

- one mounting template

- standard 408M (module) equipped with eight digital extension ports, four CO line ports, and one CO line

PFT (Power Failure Transfer) port

- standard CPM

- standard APM4

- system installation, maintenance, and programming manuals and system installation quick reference

guide.

• KSU2

- one mounting template

- standard expansion cabinet 408E (module) equipped with 8 digital extension ports, four CO line ports,

and one CO line PFT port.

IMPORTANT!

Open the cartons and verify that all items are complete and undamaged.
Remove all packing material and store for future use in the event that return
shipment is required.

MOUNTING THE KSU

1) Select a suitable location for the KSU1 considering that the expansion (KSU2) may be installed at the
same time or sometime in the future.

• KSU1 and KSU2 may be mounted such that they are side-by-side or mounted one above the other.

2) Using the mounting template as a guide, mark the two mounting screws loca tion s on the MDF
backboard.

3) Pre-drill two screw holes and install the two, pan-head No. 10 screws (supplied) into the backboard
with a regular screwdriver.

• The screw heads should protrude about 1/4-inch from the backboard plywood surface.

4) Lift the KSU over the two screws, allowing the screws to extend into the KSU slotted mounting holes.

• As the KSU is allowed to rest in place on the mounting screws it will slip over the screw shanks until

the top of the slot is reached.

• Properly installed, the KSU power transformer (where the KSU AC power cord is located) is

positioned in the upper left corner.

• The power switch and power/heartbeat LED are positioned at the left side of the KSU toward the

bottom.

CAUTION

It is very important that you mount the KSU corr ectly to allow proper power supply heat
dissipation. KSU1 and KSU2 mu st be wall mounte d only in order t o prevent the build up of
heat in and around the system.

- 44 -

Mounting the KSU (continued on next page)

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Mounting the KSU (continued)

5) Extend the earth ground #10 wire into the KSU opening at the lower left corner of the KSU.

6) Terminate the grounding wire onto the ground lug provided there

.

• The two steps above ground the KSU.

Ground Lug

- 45 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

KSU Wiring

The 408M/E, APM4, COM4, and DPM8 are equipped with RJ-11 modular jacks for each of the interfaced ports.
This connection scheme allows for two methods of installation. The firs t method (traditional “MDF”) is
recommended whenever possible to allow for maximum serviceability.

CAUTION

System power must be OFF before you plug in the station cable or while servicing port
connections at the punch-down block (66M1-50). Although each port is over-current
protected, unnecessary shorting should be avoided.

EXTENDING PORTS TO THE MDF

• Whenever you extend the various ports of the DX-120 to the MDF, you must extend modular-ended cables

from the KSU module port to the MDF connection block. You have many choices when completing these
connections; it is left to the your discretion to use the most suitable industr y-standard wiring practice for the
particular installation.

CAUTION

Use a quality crimping tool to fasten the modular connector to the cable pair when using
field-crimped modular connectors. Use of an inferior crimping tool can lead to bad
connections.

• Many third-party vendor products are available to aid in this installation procedure. The following examples

are readily available at communications equipment / accessories supply houses. Although this example
denotes product of The Siemon Company®, you are ur ged to investigate the various products available and
make decisions for use based on your own assess m ent. Vertical is not responsible for the performance of
any product provided by a third-party (o utside ) ven d or.

EXAMPLE

The examples in the following chart are 25 pair (UTP), USOC, 24 AWG cables
pre-fitted with modular connectors on one end of the cable, and a male or female
AMP® type connectors on the other end for termination on a specially equipped,
66-block with mating AMP® type connector.

The Siemon Company® Hydra Cable Assemblies

Product Number Length (feet) Wiring Scheme - End 1

HYD-F-24U1-03 3 25-Pair, Female
HYD-F-24U1-07 7 25-Pair, Female
HYD-F-24U1-10 10 25-Pair, Female
HYD-M-24U1-03 3 25-Pair, Male
HYD-M-24U1-07 7 25-Pair, Male
HYD-M-24U1-10 10 25-Pair, Male

• When you are finished with the KSU wiring, you can individually isolate each port of the DX-120 system for

independent maintenance needs. Terminate the wiring in place onto a 66M1-50 – connector block. Extend
ports from this connector block to station cables using standard jumper wire.

- 46 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

NO MDF

IMPORTANT!

Although this method initially appears to be convenient and more cost-effective, thre is an
inherent lack of serviceability. Therefore, V ertic al does not recommend this me thod of inst allation.

Since the Vertical DX-120 is equipped with RJ-11 interfaces for all port connections*, it is possible to route station
cables into the KSU directly without use of 66M1-50 connector blocks. Using quality modular connectors and
crimping tool, connect each terminal cable directly to the port required.

Regardless of the method used, route the station / M DF cables out of the KSU through the opening at the lower lef t
of the KSU housing. A cable restraint clamp is provided which you can use to secure cables exiting the KSU.

cable restraint

clamp

*This does not include DPM16.

- 47 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Typical MDF Installation

The following example install illustrates a two-cabinet installation using the MDF installation method.

Dedicated AC outlet

(i.e., the dedicated

outlet must have no

other equipment

connected to it on

this circuit breaker).

DX-120

KSU 1

DX-120

KSU 2

“Station” cables
from telephones

#10 AMG

Ground

66M1-50 Blocks

KSU

Termination

Paging

Equipment

(or other

third-party

equipment)

66M1-50 Blocks

Ancillary

Equipment

(paging, music

sources, etc.)

66M1-50 Blocks

“Station” Phone

Cable

Terminations

66M1-50

• The 66M1-50 is split into a left and right half for

termination wiring.

• Each row conducts between the two left

columns and the two right columns. This is the
source of the term “Split 50”

• Be sure to treminate cable pairs from the KSU

and from telephone locations on outer column
pins (one lead only per pin).

- 48 -

IMPORTANT!

NEVER terminate two wires on one pin!

This is refered to as “double-punching”
and causes poor connection of wires on
the terminal.

NOTE

When used with “Bridging Clips”, the Split
50 Block can be used to isolate trouble in
wiring.

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

KSU Components

KSU1 408M AND KSU2 408E

The 408M module is installed at the factory into KSU1. Although this module has the same port configuration as
the 408E, they are not interchangeable. Each 408M and 408E is equipped with fo ur CO line ports, one power
failure port, and eight digital extension Ports. See the foll owing diagram to loca te the various port s provided on th e
408M/E.

The 408M/E is also the interface point for the various add-on modules of the DX-120 system. All peripheral
modules connect to the DX-120 via the 408M/E. See the following diagra m for a r eference to the vari ous interface
connectors.

COM4 Ribbon Connector

APM4 Ribbon Connector

Voice Processor Power

Connector

Extension Expansion

module connectors
DPM8 or APM4

8 digital extension ports

KSU1: 101-108
KSU2: 141-148

Power Failure

Transfer Port

KSU1: 800

KSU2: 808

408M: CPM Ribbon Cable

408E: CPM Connector Cable

(aprox. 1 meter long to extend out of KSU2
into KSU1)

4 CO line circuits

KSU1: 800-803

KSU2: 808-811

KSU Components (continued on next page)

- 49 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

KSU Components (continued)

REPLACING A 408M OR 408E

Occasionally, when instructed to do so by a Vertical technical support representative, you may have to remove a
408M or 408E and replace it in the field. To do so, use the following the steps.

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Remove all circuit modules from the KSU cabinet.

NOTE

• All modules are fastened in place using standoff hardware, therefore, be sure

to reconstruct these stand off placements when you re-inst all the various
modules.

• APM4 modules must be installed using 2.5 cm (nickel) standoffs.

7) Install the replacement 408M/E using the 1.5cm (brass) standoffs removed from the original.

8) Install all other remaining modules in the order that they were removed.

• Be sure to connect them to the appropriate 408M/E connector.

9) Reconnect CO line and station cabling connections as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

10) Replace the KSU cover and secure with cover screws.

11) Restore KSU power when all wiring is complete.

- 50 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

KSU Components (continued)

KSU ASSEMBLY – ADD-ON MODULES

• Whenever you expand the DX-120 system, you install a module into one of the KSU cabinets.

• Modules are connected to the various connectors on the 408M/E.

• Modules are mounted using standoff posts.

- Two standoff post sizes are used in the DX-120.

- The APM4 modules must be installed using the 2.5 cm (nickel) standoffs.

- All other modules use the 1.5 cm (brass) standoffs.

IMPORTANT!

Proper use of standoff is imperative to assure proper system operation.

408M Connector

VM/AAM Connector

408E Connector to KSU2

T1 or ISDN (T1/PRI)

Connector

MDM Connectors

AAM Connector

CPM

SLOT 4 DPM8 (J3 Connector)

SLOT 3 DPM8 (J2 Connector)

COM4

SLOT 2 APM4 (Dedicated Cable)

SLOT 1 DPM8 on Board 408 M/E (KSU1/KSU2)

or T1 OR ISDN (T1/PRI)

(Dedicated Cable)

Normal/Cold

Start Strap

COM4 On Board SLOT 1

SLOT 5

- 51 -

KSU Components (continued on next page)

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

KSU Components (continued)

ADDING A DPM8

You can add two DPM8 modules to each KSU of the DX-120 system. These modules expa nd the DX-120 system
capacity to a maximum of 24 digital ports in each KSU, for a total of 48 total digital ports.

To install a DPM8, connection to the 408M/E via the Extension Expansion module connectors J2 and J3. These
connectors have the logical system address of SLOT 2 and SLOT 3 in both cabinet 1 (KSU1-408M) and cabinet 2
(KSU2-408E).

NOTE

You can connect both APM4 and DPM8 modules to the system via these two
connectors. Install the DPM8 using four 2.0 cm brass color standoffs included
with the DPM8 module.

DPM8 Extension Number Matrix Per Installed Location

KSU Connector Used Extension Numbers in KSU1 Extension Numbers in KSU2

J2 Extension Expansion 109,110,111,1 1 2,

J3 Extension Expansion 125, 126, 127, 128,

INSTALLING THE DPM8

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Remove the DPM8 module from the packaging and locate the four brass-color standoffs packaged
with the module.

113,114,115,116

129, 130, 131, 132

173, 174, 175, 176,

177, 178, 179, 180

189, 190, 191, 192,

193, 194, 195, 196

- 52 -

Installing the DPM8 (continued on next page)

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Installing the DPM8 (continued)

7) Position the DPM8 over the left-hand side of the 408M/E and any other exte nsio n mod u les alre ad y
installed.

NOTE

When installing DPM8 modules, Vertical recommends that you install them
closest to the 408M/E. An APM4 module is always factory-installed in KSU1. In
addition, a second APM4 can be installed in KSU2 (see page 54). Therefore,
before installing the DMP8 you must move any installed APM4 module outward
(toward cabinet cover) and install the add-o n DPM8 first, then re-install the APM4.
In the KSU extension modules are always installed on the left-hand side.

8) Use the four brass-color standoffs supplied with the DPM8 to secure the DPM8 in position.

9) Connect the DPM8 ribbon cable to the 408M Extension Expansion Module Co nne c tor closest
to the DPM8.

HINT

Press firmly (but not forcefully) on the connector to secure a good connection.

10) Make connections to the eight (8) digital ports as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

11) Replace the KSU cover and secure with cover screws.

12) Restore KSU power.

- 53 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Adding an APM4

One APM4 is factory-installed in KSU1. However, you can add an second APM4 to the KSU2 (via the dedicated
cable). With the 2 APM4s, the DX-120 system capacity is eight analog station ports (4 in each KSU). The APM4s
utilize four 2.5 cm (nickel) standoffs.

APM4

APM4

Extension Number Matrix Per Installed Location

KSU Connector used Extension numbers in

KSU1

APM4 Connector
(SLOT 4)

149,150,151,152 153,154,155,156 KSU1 analog ports are standard

Extension Numbers in

KSU2

408M

Notes

- 54 -

Adding an APM4 (continued on next page)

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding an APM4 (continued)

INSTALLING THE APM4 IN KSU2

1) Be sure that the entire system is turned off.

2) Remove the KSU2 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Remove the APM4 module from the packaging and locate the four nickel-color standoffs packaged
with the module.

7) Position the APM4 over the left-hand side of the KSU2 408M/E and any other extension modules
already installed.

NOTE

In the KSU2, extension modules are always installed on the left-hand side.

8) Use the four nickel-color standoffs supplied with the APM4 to secure the APM4 in position.

9) Connect the dedicated APM4 ribbon cable from the 408E to the APM4 module.

IMPORTANT!

Do not use any other connector other than the dedicated cable as provided.

HINT

Press firmly (but not forcefully) on the connector to secure a good connection.

10) Make cable/wiring connections to the 4 analog ports as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

11) R eplace the KSU2 cover and secure with cov er screws.

12) Restore power.

- 55 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Adding a COM4

You can add one COM4 to KSU1 and one COM4 to the KSU2. These modules expand the DX-120 system loop
start CO line interface capacity to a maximum of eight loop start CO line ports in each KSU (16 total loop startCO
line ports when used in KSU 1 & 2).

• When adding a COM4 to either KSU, connect to the 408M/E via the COM4 module ribbon cable.

- This ribbon cable has the logical system address of SLOT 5 in both cabinet 1 (KSU1-408M) and cabinet

2 (KSU2-408E).

• COM4 modules are installed using four 2.0 cm (brass) standoffs.

• Always install the COM4 module beneath the CPM module (in KSU1) by first r emoving the CPM, inst alling the

COM4, and then re-installing the CPM. This is required whenever you install the In-Skin Voice Processor.

CO Line Directory Number Matrix Per Installed Location

408M in KSU1 - SLOT 1 COM4 in KSU1 - SLOT 5 408E in KSU2 - SLOT 1 COM4 in KSU2 - SLOT 5

800, 801, 802, 803 804, 805, 806, 807 808, 809, 810, 811 812, 813, 814, 815

Adding a COM4 (continued on next page)

- 56 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding a COM4 (continued)

INSTALLING THE COM4

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of

Electrostatically Sensitive Components.

IMPORTANT!

Vertical recommends installing the COM4 closest to the 408M/E. This means
you must temporarily remove the CPM and then reposition the CPM above the
COM4 once you have installed the COM4 (in KSU1).

For KSU2 installation skip step 6.

6) Remove the installed CPM by removing the four brass standoffs used to secure the board, retaining
these standoffs for later use.

7) Remove the ribbon cable that connects the CPM to the 408M then set it aside.

8) Remove the COM4 module from the packaging and locate the four brass-color standoffs packaged
with the module.

9) Position the COM4 over the 408M/E (right-hand side) where you just removed the CPM (KSU1).

10) Use the four brass-color standoffs supplied with the COM4 to secure the COM4 in position.

11) Connect the COM4 ribbon cable from the 408M/E to the COM4 connector.

HINT

Press firmly (but not forcefully) on the connector to secure a good connection.

- 57 -

Installing the COM4(continued on next page)

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Installing the COM4(continued)

For KSU2 installation, skip step 12 and proceed to step 13.

12) Reposition the CPM over the installed COM4 and secure using the four brass-color standoffs
previously removed (see page 57

13) Make cable/wiring connections to the 4 CO line ports as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

14) Replace the KSU cover and secure with cover screws.

15) Restore KSU power.

).

Adding an MDM

You can add one MDM to KSU1. The MDM allows you to remotely access to the DX-120 database programming
and maintenance functions using PC-DBA.

NOTE

The MDM does not provide access to the DX-120 In-Skin Voice Mail/AA.

• At default the MDM directory number is 100.

- To establish a connection to the MDM remotely, call into the system where the MDM is installed from the

remote site using PC-DBA.

- Ask to be transferred to extension 100.

- When you hear the modem tone, initiate any required keystrokes to link the modems.

- Then proceed with usual PC-DBA connection routines.

NOTE:

If you are using In-skin voicemail or AA a manual transfer is not necessary.

- Install the MDM onto designated connectors located on the CPM.

- 58 -

Adding an MDM (continued on next page)

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding an MDM (continued)

INSTALLING THE MDM

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM at the right-hand side of KSU1, above the 408M (and COM4 if installed).

7) Position the MDM over the CPM-MDM connectors as shown below.

CPM

HINT

Press firmly (but not forcefully) on the MDM to secure a good connectio n into the
CPM-MDM connectors.

8) Replace the KSU cover and secure with cover screws.

9) Restore KSU power.

MDM

- 59 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Adding an AAM

You can add one AAM to the KSU1. The AA Module adds automated attendant functionality to the DX-120 system
with 10 integrated announcements. The AAM does not provide voice mail functions.

HINT

For more information on how to program the AAM and its announcements, refer
to the DX-120 Technical Manual, Volume II, Programming.

INSTALLING THE AAM

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic discharge.
You must keep this in mind as you handle the circuit boards. For additional
information, see Vertical publication IMI01-005, Handling of Electrostatically
Sensitive Components.

6) Locate the CPM at the right-hand side of KSU1 above the 408M (and COM4 if installed).

7) Position the AAM over the CPM-AAM connectors as shown below.

AA

CPM

HINT

Press firmly (but not forcefully) on the AAM to secure a good connection into the
CPM-AAM connectors.

8) Replace KSU cover and secure with cover screws.

9) Restore KSU power.

- 60 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding a KSU2 Second Cabinet

You can add one KSU2 to a KSU1. The KSU2 adds:

• eight digital DX-120 extension ports

• four CO line ports

• one Power Failure Transfer port

• Extension expansion connectors for two additional DPM8s or one APM4

• Dedicated ribbon cable for one APM4

• Dedicated ribbon cable for one COM4

INSTALLING THE KSU2 (CONNECTING THE KSU2 TO THE KSU1)

1) Be sure that the entire system is turned off.

2) Remove the cover from both the KSU 1 and KSU 2 (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic discharge.
You must keep this in mind as you handle the circuit boards. For additional
information, see Vertical publication IMI01-005, Handling of Electrostatically
Sensitive Components.

6) Locate the long cable attached to the 408E of KSU2, and route it out of the KSU2 cabinet into the
KSU1 cabinet so you can connect it to the CPM.

7) Locate the CPM at the right-hand side of KSU1 above the 408M (and COM4 if installed).

- 61 -

Installing the KSU2 (continued on next page)

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Installing the KSU2 (continued)

8) Position the KSU2 connection cable over the CPM-“2nd Cabinet Connector” as shown below.

2nd Cabinet Connector

Cable from KSU2-408E

CPM

HINT

Press firmly (but not forcefully) on the KSU2-Cable connector to secure a good

nd

connection into the CPM-2

9) Replace the KSU cover and secure with cover screws.

10) Restore KSU power by powering both KSU cabinets at the same time.

11) Flip both cabinet power switches to the “ON” position simultaneously.

CAUTION

You must turn on both cabinets at the same time. Failure to do so can
result in damage to the KSU1 and potentially the KSU2.

Cabinet Connector.

- 62 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding a Music Source

Y ou can conne ct two sources of music to the CPM for use with the Music On Hold and Background Music features.

CPM

MC1 & MC2 external music source

Connectors

HINT

A third option is to use an internal musical tune or tone can be used for callers on
hold. When this option is used, the MC1 connector is not used.

SELECTING INTERNAL MUSIC TUNE FOR MUSIC CHANNEL MC1

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM and “MUSIC” option strap.

7) Move the “MUSIC” option strap (JPC1) from the “EXT” (factory position) to the “INT” position.

Adding a Music Source (continued on next page)

- 63 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Adding a Music Source (continued)

INSTALLING EXTERNAL MUSIC SOURCE TO MC1/MC2/BOTH

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

6.Circuit boards are susceptible to damage caused by electrostatic discharge. You must
keep this in mind as you handle the circuit boar ds. For additional information, see V ertical
publication IMI01-005, Handling of Electrostatically Sensitiv e Components.

6) Locate the CPM and the “MUSIC” option strap.

7) Make sure that the “MUSIC” option strap is in the “EXT” position. (Required for external source to
operate on MC1.)

8) Locate CPM the “MC1” and “MC2” connector jacks on the CPM.

9) Connect the output of the external music source to the appropriate MC1 or 2 connector

HINT

• At default MC1 is used fo r Music On Hold.

• This is easily accomplished using a prefabricated mini-plug to mini-plug cable

available at Radio Shack.

10) Adjust the music volume level at the external music source.

HINT

When adjusting the music for Music On Hold:

• Place a call into the system on one of the CO Lines so that the external music

source is heard by the calling party (you).

• Adjust the volume level of the external music source until a desirable level is

reached.

• Background Music is then adjusted at the telephone using the instrument

volume control.

- 64 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Adding an External Pager

One port is provided at the CPM of the DX-120 system for use with external paging system apparatus.

• When DX-120 users dial the external pager code (“777” at default) or dial the Tenant Group All Page code

(“400” at default), voice announcements can be made over the external paging equipment.

External “Page” connector
(goes to external amplifier)

• The DX-120 External Page port does not provide any amplification. Interface at the amplifier should be

matched to approximately 600 ohms for the best performance.

EXTERNAL PAGER INSTALLATION PROCEDURE

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

7.Circuit boards are susceptible to damage caused by electrostatic discharge. You must
keep this in mind as you handle the circuit boar ds. For additional information, see V ertical
publication IMI01-005, Handling of Electrostatically Sensitiv e Components.

6) Locate the CPM and “PAGE” connector jack on the CPM.

7) Using an eighth-inch mini plug, connect the DX-120 Page port to the external amplifier input.

8) Adjust the voice volume level at the ex te rn al paging amp lifie r.

HINT

When adjusting the volume level:

• Dial access to the External Pager port at any DX-120 telephone (“777”).

• Adjust the volume control associated to the amplifier input selected for this

purpose.

- 65 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Add a Loud Bell Control or Gate Control

One “dry-connection” is provided at the CPM of the DX-120 system for use with external ringing devices or door
opening apparatus. The DX-120 can be pro grammed to activate the dry contact whenever certain CO lines ring or

whenever the LBC code is dialed to actuate a door opener.

“BELL” control connector (wires to

bell and power supply)

INSTALLING A LOUD BELL

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM and “BELL” connector jack on the CPM.

7) Wire the DX-120 BELL contact in series with an external 24vdc power supply and 24vdc bell or
ringing device.

CAUTION

Use only 24v or less voltage supply and Direct Current (dc).

8) Program LBC operation for CO line ringing according to CO line group assignments.

HINT

For more information refer to the DX-120 Technical Manual, Volume II,
Programming.

Add a Loud Bell or Gate Control (continued on next page)

- 66 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Add a Loud Bell or Gate Control (continued)

INSTALLING A GATE OR DOOR CONTROL

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM and “BELL” connector jack on the CPM.

7) Wire the DX-120 BELL contact in series with an external 24vdc power supply and 24vdc door op ening
device.

CAUTION

Use only 24v or less voltage supply and Direct Current (dc).

8) Program LBC operation for External Page operation.

9) Dial the External Page code to activate the gate/door.

HINT

• The External Page code can be programmed onto an available Flexible

Feature Button.

• For more information refer to the DX-120 Technical Manual, Volume II,

Programming.

- 67 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Adding a DPM16 (Digital Port Module – 16 port)

• Two DPM16 (Digital Port Module, 16-port - i.e., 16 digital phones) modules can be added to each KSU of the

DX-120 system.

• These modules expand the DX-120 system extension capacity to a maximum of 40 digital ports in each KSU

(80 total digital ports).

• DPM16’s are installed by connection to the 408M via the Extension Expansion module connectors (“J2”and

“J3.”)

• The DPM16 board has eight RJ-12 jacks.

• Each RJ-12 jack has four wires so you plug two phones into each jack.

• You cannot do a Off-Hook Voice Announce (OHVA) to a phone that is plugged into the DPM16. However , yo u

can do a OHVA from a phone that is plugged into a DPM16 board.

INSTALLING A DPM16

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Remove the DPM16 module from the packaging and locate the four brass-color standoffs packaged
with the module.

7) Position the DPM16 over the left-hand side of the 408M/E and any other extension modules already
installed.

NOTE

When installing DPM16 modules, Vertical recommends that you install them
closest to the 408M/E. An APM4 module is always factory-installed in KSU1. In
addition, a second APM4 can be installed in KSU2 (see page 54). Therefore,
before installing the DMP16 you must move any installed APM4 module outward
(toward cabinet cover) and install the add-on DPM16 first, then re-install the
APM4. In the KSU extension modules are always installed on the left-hand side.

8)Use the four brass-color standoffs supplied with the DPM16 to secure the DPM8 in position.

9) Connect the DPM16 ribbon cable to the 4 08M Exten sion Exp ansio n Module Conn ector clo sest to the
DPM16.

HINT

Press firmly (but not forcefully) on the connector to secure a good connection.

Installing a DPM16 (continued on next page)

- 68 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Installing a DPM16 (continued on next page)

10) Make connections to the sixteen (16) digital ports as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

11) Replace the KSU cover and secure with cover screws.

12) Restore KSU power.

Adding a T1 or ISDN (T1/PRI) Card

• One T1 (T1 Module) or ISDN (T1/PRI Module) card can be added to KSU1.

• The module expands the DX-120 system CO Line interface capacity to a maximum of 24 CO Line ports in

system.

• The T1 or ISDN (T1/PRI) CARD is installed onto a designated connector located on the CPM2.

INSTALLING A T1 OR ISDN (T1/PRI) CARD

NOTE

In the description below, for better readability the term T1 is used to describe both
a T1 or ISDN (T1/PRI) Card.

1) Be sure that the entire system is turned off.

2) Remove the KSU cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Remove the T1 Card module from the packaging and locate the four brass-color standoffs packaged
with the module.

7) Remove the installed CPM by removing the four brass standoffs used to secure the board, retaining
these standoffs for later use.

8) Position the T1 Card ove r the righ t-ha nd sid e of the 408M/E (and the COM4 module if it is installed).

NOTE

When installing a T1 Card module, Vertical recommends that you install it directly
below the CPM card.

Installing T1 or ISDN (T1/PRI) Card (continued on next page)

- 69 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Installing T1 or ISDN (T1/PRI) Card (continued)

9) Use the four brass-color standoffs supplied with the T1 Card to secure the T1 in position.

10) Reposition the CPM over the installed COM4 and secure using the four brass-color standoffs
previously removed (see step 7).

11) Connect the T1 Card ribbon cable to the J7 connector or the CPM card..

HINT

Press firmly (but not forcefully) on the connector to secure a good connection.

12) Make all cable/wiring connections as required.

CAUTION

The FCC requires that wiring of CO lines into a KSU be separated from
wiring of station apparatus into a KSU. Therefore you must use separate
cables for wiring stations and CO lines.

13) Replace the KSU cover and secure with cover screws.

14) Restore KSU power.

Connecting a Serial Cable for PC-DBA

• You can connect PC-DBA to the to DX-120 system to set up all user database programmable features and

system operations.

- This connection is rarely permanent and is typically performed only during routine systems database

updates and changes by a qualified technician.

- Connection of the PC to the DX-120 is accomplished through the serial data port on the CPM labeled

“PCDBA.”

- Connection is simplified by means of a straight-through, 9-pin, female to male, serial cable. (Use Radio

Shack model 26-117B for good results.)

- Connection to the PC is made via an available 9-pin serial port connector that is designated as COM1 or

COM2 in the PC configuration.

• Once the cable is linked between the PC and the DX-120 CPM PCDBA port, you can use PC-DBA to program

the DX-120 system and to back up your customer’s database.

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

Installing T1 or ISDN (T1/PRI) Card (continued on next page)

- 70 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Installing T1 or ISDN (T1/PRI) Card (continued)

6) Locate the CPM and “PCDBA” serial port on the CPM.

“PCDBA” serial port connector

(straight-through, 9-pin, male-to-female cable required)

7) Connect the male end of the 9-pin serial cable into this PCDBA port.

8) Connect the other end (female) of the 9-pin serial cable to th e PC serial port to be used with PC- DBA.

HINT

For more information about how to program the DX-120 using PC-DBA, refer to
the DX-120 Technical Manual, Volume II, Programming.

Connecting a Serial Cable for SMDR

• SMDR (Station Message Det ail Recording) can be o utput from the DX-120 system for use with seri al prin ters

of collection in call accounting devices.

- Connection of the SMDR device to the DX-120 is accomplished through the serial data port on the CPM

labeled “SMDR.”

- Connection to serial printers may require customization of the serial cable used to make the connection.

• Whenever a call accounting system (third-party device ) is dep loyed, connection is often no more complicated

than using a straight-through, 9-pin, female to male, serial cable.

NOTE

Use Radio Shack model 26-117B for good results.

- Connection to the PC/call accounting system is made via an available 9-pin serial port connector that is

designated as COM1 or COM2 in the PC configuration.

• Once the cable is linked between the collection device and the DX-120 CPM-SMDR port, the collection device

must be programmed for compatible link protocol (baud rate). At default the SMDR port baud rate is set at
9600 bps.

SMDR 9-pin Serial Cable Pin Designations

123456789

DCD RXD TXD DTR GND DSR RTS CTS RI

1) Be sure that the entire system is turned off.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

- 71 -

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM and “SMDR” serial port on the CPM.

“SMDR” serial port connector (straight-through)

7) Connect the male end of the 9-pin serial cable into this SMDR port.

8) Connect the other end (female) of the 9-pin serial cable to the PC/collection device serial port.

9) Replace the KSU cover.

Power-up Initialization (Cold Start)

IMPORTANT!

• The installation of the DX-120 is complete only when initialization is performed

at the time of startup. This process is required for proper oper a tion of th e
system.

• Occasionally it may be required to perform this initialization process after the

original installation, but this is rare.

• Initialization causes the operational customer database to be est abl ished and o rganized for system oper ation

and future updating.

• Once initialization has been completed the default database contents are loaded into operational memory:

the system is ready to run on this database configuration.

• Customized changes may be made to this database according to the allowable program settings for the

various features.

CAUTION

If you are performing a cold start on a system with an existing customized
database, be sure to back up that dat abase prior to be ginning the cold sta rt
procedure. The cold start procedure forces the default database into the
DX-120 switch, overwriting any existing database residing on that switch.
For more details on backing up databases, see the DX-120 Technical
Manual, Volume II, Programming.

Power-up Initialization - Cold Start (continued on next page)

- 72 -

DX-120 Installation and Maintenance Manual INSTALLING THE DX-120

Power-up Initialization - Cold Start (continued)

INITIALIZING THE DX-120

IMPORTANT!

If you have previously plugged in the power cords and/or turned on the power
supplies, turn OFF the power supply to the DX-120 KSUs and un-plug the DX­120 AC power cords on KSU1 and KSU2.

1) Be sure that the entire system is turned off and unplugged.

2) Remove the KSU 1 cover (four screws at each corner).

3) Install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit.

CAUTION

Be sure that the strap is touching bare skin and is not isolated by clothing.

4) Connect the wrist strap cord between the wrist strap and an AC or earth ground.

5) Connect a static discharge wrist strap to a suitable earth ground.

CAUTION

Circuit boards are susceptible to damage caused by electrostatic
discharge. You must keep this in mind as you handle the circuit boards.
For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

6) Locate the CPM and “NORMAL/COLD START” option strap (

installed

CPM (JPE1).

in bottom right corner) of the

- 73 -

Initializing the DX-120 (continued on next page)

INSTALLING THE DX-120 DX-120 Installation and Maintenance Manual

Initializing the DX-120 (continued)

7) Move this strap to the “COLD START” position and allow it to remain in this position for 30 seconds.

NOTE

New systems are shipped with this strap in the “COLD START” position, so if you
are installing a new system you can skip this step.

CAUTION

This procedure overwrites all customized customer programming. If you want to
maintain customized programming, be sure to back up the custom database prior
to performing the cold start. For more information refer to the DX-120 Technical
Manual, Volume II, Programming.

8) Move the strap to the “NORMAL” position.

CAUTION

Vertical ships the DX-120 with the option strap in the COLD START position to
preserve the battery while the system is in transit. However, you MUST move
this strap to NORMAL for the DX-120 to begin normal operation. The system
specifically monitors the position of this strap and shuts down operation if it
remains in the COLD START position.

9) Install all optional expansion modules inside the KSU as required.

• Optional expansion modules include: COM4, DPM8, DPM16, APM4, VM, AAM, T1, ISDN (T1/PRI).

10) Plug the AC power cords into a dedicated, non-switching UPS.

CAUTION

• Only a qualified telephony technician should perform this procedure

since hazardous voltages are presen t in si de the KSU ca b in et s.

• DO NOT TOUCH exposed terminals or fuse connections

power supply and fuse area while the system is powered and the KSU
cabinet cover is removed!

11) Turn on the power supply to the DX-120 KSUs by simultaneously moving the ON/OFF switch to the
ON position on KSU1 and KSU2 (if two cabinets are installed)

12) Watch the LED on the CPM (at the left side of the module) to make sure it begins to flash on and off.

• The LED located at the ON/OFF button of the KSU follows the operation of the LED on the 408M.

Both of these LEDs indicate the operation of the peripheral processors on th e 408M, and sho uld be
flashing in unison.

• The LED on the APM4 will also begin to flash indicating that its peripheral processor is running.

• As the main CPU comes on-line it will detect the Cold Start status of a specially blocked memory

address. Once this is detected, the system forces default data into operational memory.

• While the system is detecting and force-loading data, it flashes th e CPM LED at various fast rates,

then stabilizes the LED again at a consistent rhythmic rate.

• When the LED reaches this consistent rate, the system has finished initiation and is operational.

The default data is loaded and ready, and the telepho nes should be functional. In this st atus, all CO
lines will ring at extension 101, all extensions may take and place calls, and all systems features are
operational per their default configuration.

13) Begin customizing the database to meet your customer’s specific site needs.

at or around the

HINT

For additional information, see Vertical publication IMI01-005, Handling of
Electrostatically Sensitive Components.

- 74 -

DX-120 Installation and Maintenance Manual

SECTION 3 - MAINTENANCE & TROUBLESHOOTING

SYSTEM MAINTENANCE

Maintaining the V ertical DX-120 digital telephone system is a combination of customer dat abase changes, facilities
and apparatus moves, adds and changes. These requirements are accomplished by practicing the techniques,
illustrations and step-by-step instructions listed in the previous sections of this manual.

Cleaning the Telephones

When properly installed, the Vertical DX-120 is relatively maintenance-free. However, as with most things , from
time to time the digital telephone instrumen ts may become dirty or dusty and re quire cleaning. We re commend the
following be considered:

• Use a clean, dry cotton (or other soft, absorbent) cloth to wipe the instrument clean.

• Do NOT use cleaning chemicals

- The use of chemicals to clean the telephone plastics is NOT recommended since some chemicals can

cause permanent damage to the telephone finish.

- If deep soiling conditions exist, many specialized telephone cleaning solutions will provide satisfactory

results.

- When trying any cleaner for the first time, apply the cleaner to a small sample area on the underside of

the instrument. If the expected results are achieved, procee d with cleaning the remainder of the
telephone.

TECHNICAL PROBLEM SOLUTIONS

The system trouble shooting procedures are a logical appr oach to fault identification, analysis, and correction. The
DX-120 may generate symptoms of problems that actually occur outside of the office environment.

Problems Not Related to System Issues

The following is a list of that may be common situations that are NOT the result of a system component or software
failure.

• system restarts (from temporary AC power interruption)

• fading (from the long distance carrier)

• dropped calls (caused by internal users randomly pressing holding CO line buttons)

- 75 -

Technical Problem Solutions (continued on next page)

TECHNICAL PROBLEM SOLUTIONS DX-120 Installation and Maintenance Manual

Technical Problem Solutions (continued)

Diagnostic Quick Reference

This section attempts to provide you with some quick, and reliable, to ols to diagnose service-related problem
reports.

For installation-related problems, see “Troubleshooting Installation ISSUES”.

Diagnostic Quick Reference Chart

Symptom(s) Diagnostic Aid Cause(s) Action

No system
operation.

No LED or LCD
operation Digital
Executive
Telephones.

No dial tone at
IST’s.

No system
operation.

CPU Heartbeat
LED Dark

CPU Heartbeat
LED Dark or Lit
steady

No AC input 1) Check commercial AC outlet.

2) Verify that both ends of AC cord are plugged
in.

Power Switch Switch the KSU AC power switch to the “ON”

position.

AC Fuse 1) Switch KSU power to the OFF position and

remove cover (four screws).

2) Locate the system power supply in the upper
left corner of the KSU interior and inspect the
AC fuse for continuity (DVM required).

DC Fuse 1) Switch KSU power to the OFF position and

remove cover (four screws).

2) Locate the system power supply in the upper
left corner of the KSU interior and inspect the
DC fuse for continuity (DVM required).

Memory strap in
“Cold Start” position

If the memory strap is in the “Cold Start”
position:

Initialize the system as described in “Power-up Ini-

tialization (Cold Start)” on page 72.

Power Switch Switch the KSU AC power switch on the “ON”

position.

AC Fuse 1) Switch KSU power to the OFF position and

remove cover (four screws).

2) Locate the system power supply in the upper
left corner of the KSU interior and inspect the
AC fuse for continuity (DVM required).

DC Fuse 1) Switch KSU power to the OFF position and

remove cover (four screws).

2) Locate the system power supply in the upper
left corner of the KSU interior and inspect the
AC fuse for continuity (DVM required).

No system operation (continued on next page)

- 76 -

DX-120 Installation and Maintenance Manual TECHNICAL PROBLEM SOLUTIONS

Diagnostic Quick Reference Chart (continued)

Symptom(s) Diagnostic Aid Cause(s) Action

No system operation (continued)

SPI Bus Error 1) Switch KSU power to the OFF position.

2) Remove cover (four screws).

3) Locate each expansion module.

4) Verify the ribbon cable connection is accurate
and secure.

5) Check for improper aligning of module
connectors.

6) Detach all station cabling and retest.

7) Check all socketed IC's for good "seated"
connections.

8) Unplug one module at a time and retest until
failed component is found.

9) Perform Initialization and Power Up sequence.

NOTE:

This is an emergency action since the
unique customer database will be erased
and the system will reboot with default
database programming.

10)If this does not clear the trouble, replace KSU1
and initialize it as described in “Power-up
Initialization (Cold Start)” on page 72.

Telephone/
Terminal app aratus
not working

NOTE:

Digital telephones use only one twisted cable pair for power, data control and voice communications. There are
no fuses for station interface protection. Instead, a current sensing Polly-switch limits excessive current going to
each terminal connection. If a station cable pair is shorted or a telephone’s DC power supply is damaged, the
Polly-switch will temporarily

CPU Heartbeat
LED flashing and
408M/408E/DPM8
module Heartbeat
flashing but one or
more digital
telephones are not
functioning.

open to protect the KSU Module circuitry.

Shorted station
cabling.

Faulty Telephone If the above test yields all working ports and no

1) At the KSU, power the system dow.

2) Remove the power cord from the AC outlet.

3) Remove the KSU cover (four screws).

4) Disconnect all station wiring on the affected
408M, 408E, DPM8, or DPM16 and connect
one known-good DET directly to one of the
interface ports.

5) Replace the KSU cover and retest with this
phone.

Follow the above procedures to test each inter­face port as needed. If any port is found faulty
or not working, replace the module. Other­wise, replace the wiring/cabling.

cabling errors

• Test each connected telephone one at a time until

the faulty telephone is discovered.

• Replace the faulty telephone(s).

Diagnostic Quick Reference Chart (continued on next page)

- 77 -

TECHNICAL PROBLEM SOLUTIONS DX-120 Installation and Maintenance Manual

Diagnostic Quick Reference Chart (continued)

Symptom(s) Diagnostic Aid Cause(s) Action

Digital telephone
erratic operation:

• Erratic LED/LCD
operation

• Faint data noise
in the
background
during
conversations

Other party cannot
hear you (handset)

Digital Volt/Ohm
Meter

Another digital
telephone

Cable distance is
too long for gauge of
wire/cable used.

Non-standard
telephone cable
being used.

Multiple digital
extensions being
fed from one
common cable or on
the same cable pair.

Component failure 1) Lift handset.

If a digital telephone is not receiving clear 2B+D
signaling from the KSU, test as follows:

With station cable cross-connect (jumper) wire
removed and telephone unplugged:

Place a short circuit across the inside wiring
cable pair at the user end (jack) of the cable.

With a DVM:

Measure the short circuit resistance one way.
The short-circuited cable pair ohm reading
should not exceed 34 ohms.

Each digital telephone should operate on one
dedicated, unshielded, twisted pair cable to avoid
data noise and interference between adjacent cable
pairs.

2) Dial another digital extension.

3) Confirm connection of audio.

If audio is one-way only

4) Replace handset and repeat steps 1-3.

If problem persists…

5) Replace handset cord and repeat steps 1-3.

If the problem persists…

6) Replace the telephone.

Diagnostic Quick Reference Chart (continued on next page)

- 78 -

DX-120 Installation and Maintenance Manual TECHNICAL PROBLEM SOLUTIONS

Diagnostic Quick Reference Chart (continued)

Symptom(s) Diagnostic Aid Cause(s) Action

Cannot hear other
connected party

NOTE:

The above test requires you to set the feature "Auto Select" for intercom operation ("ICM").

Other party can't
hear you while
using the
speakerphone.

Another digital
telephone

Another digital
telephone

Component failure 1) Lift handset

If the intercom dial tone is not heard over the
handset:

2) Hang up (put the handset in the cradle).

3) Press the SPK button.

If dial tone is heard over the loudspeaker:

4) Replace handset and repeat the first test.

If there is still no dial tone heard through the
handset:

5) Replace the handset cord and retest.

Still no dial tone heard:

6) Replace the telephone.

If dial tone is not heard over the loudspeaker
(ON/OFF button test):

7) Replace the telephone.

Connection /
component failure

1) Press the SPK button.

2) Listen for dial tone over the loudspeaker.

3) Call a working extension.

NOTE

The called extension should use the
handset for this test.

AND/OR

4) V erify two-way connection.

If the called extension cannot hear your voice:

5) Verify that MUTE is not enabled (i.e., status
lamp flashing red).

6) Lift the handset and verify two-way connection
using handset.

If verified as a speakerphone problem:

7) Replace the telephone.

Diagnostic Quick Reference Chart (continued on next page)

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TECHNICAL PROBLEM SOLUTIONS DX-120 Installation and Maintenance Manual

Diagnostic Quick Reference Chart (continued)

Symptom(s) Diagnostic Aid Cause(s) Action

No sound heard
over loudspeaker
in speakerphone
mode.

Static and / or
noise can be heard
during a
conversation

Another digital
telephone

Process of
elimination.

Industry standard
technician testing
tools (lineman's
test set, etc.)

Connection /
component failure

Another extension If only static is heard when connected to a

Station cabling/MDF
wiring

1) Press the SPK button.

2) Listen for dial tone over the loudspeaker.

3) Call a working extension.

NOTE

The called extension should use the
handset for this test.

4) V erify two-way connection.

If the called extension cannot hear your voice:

5) Verify that MUTE is not enabled (i.e., status
lamp flashing red).

6) Lift the handset and verify two-way connection
using handset.

If verified as a speakerphone problem:

7) Replace the telephone.

specific extension during an intercom call:

Examine that extension.

If static exists on all calls:

1) Check station cabling/wiring and all MDF
connections.

2) Correct any problems.

Extension apparatus If noise persists:

1) Change-out swappable components (handset,
handset cord).

If noise continues:

2) Try a known good extension connected to this
station cable.

Static and / or noise can be heard during a conversation (continued on next page)

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DX-120 Installation and Maintenance Manual TECHNICAL PROBLEM SOLUTIONS

Diagnostic Quick Reference Chart (continued)

Symptom(s) Diagnostic Aid Cause(s) Action

Static and / or noise can be heard during a conversation (continued)

Telco problem If static/noise is hear d on CO lines only:

1) Determine if other extensions also hear the
noise/static.

If other extensions also hear the noise/static:

2) Determine if other CO lines affected (ie.e.,
either several or only a few).

3) Disconnect CO line at interface point and
connect Lineman's test set to the same point of
connection ahead of the system.

If noise/static persists:

4) Contact the local servicing telephone company
and request repair.

If noise/static can be isolated to the DX-120
equipment:

5) Verify which CO line ports are affected (which
CO ports seem to have noise/static).

6) Replace interface modules as required.

Programming lost
or changed.

Digital Executive
Telephone display.

Intended
programming
change.

PC-DBA
programming
changes Send All
operation.

Bad Memory battery If power fluctuations occur and the memory battery

Check with system administrator for incidental
changes made.

When using PC-DBA to make customer database
changes you must take special precaution not to
overwrite existing data with residual PC-DBA
working directory values. When using PC-DBA to
update any database, it is highly recommended to
perform the function Receive All prior to making any
specific database changes to assure that the
working directory database matches the database in
use at the customer site.

backup battery is low or bad, the customer database
is susceptible to being defaulted (factory settings
loaded) whenever a power interruption occurs. If
this occurs change the standard (photo-cell type)
lithium battery.

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MAINTENANCE UTILITIES DX-120 Installation and Maintenance Manual

MAINTENANCE UTILITIES

The DX-120 includes a versatile maintenance utility that you access through PC-DBA. A technician with PC skills
can easily use the maintenance function to obtain various data and information about the DX-120 and all

®

connected components. The DX-120 system allows you to administer system database parameters via an IBM
Compatible, Personal Computer.

• The use of a PC has distinct advantages over programming the system via the digital telephone, including:

- Specific database archiving (via save function)

- Remote programming

- Outboard programming

• The PC program that interfaces with the DX-120 system is PC-DBA (PC-Database Administration). PC-DBA

is a windows based program and requires the following resources in the PC environment:

- PC running Windows 98, 2000, ME, or XP

- RAM: 64 MB or greater

- Processor Speed: 350 MHz or greater

- Free Hard Disk Space: 4 GB or greater

NOTE

PC-DBA is included in the utilities CD shipped with every new system. You can
obtain PC-DBA at the at

www.vertical.com/ccc.

IMPORTANT!

Use of this DX-120 utility requires a well-rounded understanding of the PC
Windows environment. The creator and/or supplier of PC-DBA cannot support
users who are unfamiliar with these basic requirements. If any of these issues
concern you, please consult with a qualified technician who is well-versed in PC
operation.

Loading PC-DBA software

When PC-DBA is retrieved from Vertical’s web site, it is downloaded in a self-extracting executable file. Take the
following actions to install the software on your PC.

1) Download the PC-DBA executable file from either the CD provided or from the CCC (go to
www.vertical.com/ccc).

HINT

The executable’s file name will be a format similar to the following:
DX120_PCDBA_A3310160322136.exe.

2) Do uble click on the executable file to start the Install Shield Wizard.

3) Follow the on-screen instruct ions.

• When the installation is complete, an icon is placed on your Desktop.

4) Click on the new icon to launch PC-DBA.

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DX-120 Installation and Maintenance Manual CONNECTING TO THE SYSTEM

CONNECTING TO THE SYSTEM

All operations in PC-DBA – Maintenance require that your PC be connected to the DX-120 switch. You can do this
in any of three ways:

• a direct connection to the KSU1 – CPM – PC-DBA port

• using the optional system modem (PN 7249)

• using the built-in modem of the in-skin hard drive voicemail module with pass-through commu nications

enabled.

Once you establish a data communications link, you can connect to the system by pressing the F5 key or go to
Control>Connect. to display the Connect window. This connect operation links PC-DBA to the DX-120 processor
for data exchange.

Cable Connection

Connect to the DX-120 system on site via the PC serial port (COM port). Use a straight-through, 9-pin to 9-pin,
Male/Female cable from the PC serial port to the DX-120 CPM – PC-DBA port. Once you make this connection,
you can connect to the DX-120 system processor for the various Maintenance operations.

HINT

For more information on cable connections with PC-DBA, please refer to See
“Connecting a Serial Cable for PC-DBA” on page 70..

PASS-THROUGH COMMUNICATIONS WITH CORPORATE OFFICE DX

Pass-through Communications is a feature associated with the Corporate Office DX 7270C hard drive voice mail
board. This feature allows you to communicate with the DX-120 or the in- skin hard drive voice mail system th rough
a single modem number.

HINT

Refer to the Corporate Office DX Installation Manual for more information.

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CONNECTING TO THE SYSTEM DX-120 Installation and Maintenance Manual

Connecting PC-DBA to the DX-120 Switch

In order to use any of the Maintenance options available in PC-DBA, you must first connect it with the DX-120
switch. There are two methods that allow you to make this connection:

• Local Connection (on-site)

• Remote Connection (via modem)

ESTABLISHING A LOCAL CONNECTION WITH PC-DBA

If you are on site, you can easily connect PC-DBA to the local system using this method.

From the mainscreen of PC-DBA:

1) Go to ControlXConnect to display the Password screen.

2) Enter the appropriate password

HINT

The default password is eight pound signs (i.e., ########).

NOTE

If you enter the password incorrectly , a message will be displayed to let you know
and will ask you to try again.

3) Click OK to display the Local connection window.

4) Select the appropriate Com Port.

5) Sele ct th e ap pr op r i ate Bau d ra te .

Select the
appropriate COM
Port and Baud Rate.

Click Connect to
initiate the
connection.

Establishing a Local Connection with PC-DBA (continued on next page)

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DX-120 Installation and Maintenance Manual CONNECTING TO THE SYSTEM

Establishing a Local Connection with PC-DBA (continued)

6) Click Connect to initiate the connection.

HINT

When the system is connected a red dot will appear in the lower left corner of the
screen next to the CTS indicator.

7) Program the switch as needed.

HINT

• See “Accessing PC-DBA Maintenance” on page 88 as well the DX-120

Programming Manual for more information about using PC-DBA.

• There is also an online help system in PC-DBA that can provide you with the

information you need to program and maintain the DX- 120.

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CONNECTING TO THE SYSTEM DX-120 Installation and Maintenance Manual

Establishing a Modem Connection with PC-DBA

If the system is not equipped with an automated attendant or a voice mail in auto attendant mode, make sure the
attendant is aware that a modem connection will be taking place. Use of the automated attendant can greatly
assist the modem connection process since you can enter the modem extension remotely.

From the mainscreen of PC-DBA:

1) Go to ControlXConnect to display the Password screen.

2) Enter the appropriate password

HINT

The default password is eight pound signs (i.e., ########).

NOTE

If you enter the password incorrectly , a message will be di splayed to let you know and will ask you
to try again.

3) Click OK to display the Local connection window.

4) Click the Remote tab to display the Remote connection window.

Click here to save
changes made to
the selected
control string.

Click here to delete the
selected control string.

5) Select the appropriate modem name.

Click here connect using
the selected information.

Select the
appropriate
modem name.

Select an existing
control string for
connection,
modifcation , or
deletion.

See NOTE below.

Enter new control
string information
as needed.

Click here to add
any new control
string information
to the table/list.

Establishing a Modem Connection with PC-DBA (continued on next page)

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DX-120 Installation and Maintenance Manual CONNECTING TO THE SYSTEM

Establishing a Modem Connection with PC-DBA (continued)

6) Sele ct th e ap pr op r iate c ontr ol str i ng

OR

Enter a new control string.

NOTE

• To add a new control string: Enter a new control string, then click Add to List

to save the new information.

• To change an existing control string: Click on the string to be edited, make

the change, then click Modify to save the change.

• To delete an existing control string: Click on the string to be deleted, then

click Delete.

7) Click Connect to initiate the connection using the currently selected modem name and control string.

NOTE:

• If nothing happens, it is likely that the modem is not being addressed by PC-

DBA. Select the COM (serial port) that is connected to the PC modem. Enter
the telephone number at the site location. Then press

• If modem connection at this site requires a human to transfer the modem call to

the DX-120 modem (ext 100), you must have a standard telephone connected
to the same circuit as the modem so that you can verbally request the
answering person to transfer the call.

• Once a modem connection has been accomplished, you can perform an F5-

Connect. F5-Connect is required to link PC-DBA to the DX-120 CPM
processor.

• Refer to the HINT under step 6 on page 85 regarding the CTS indicator that

appears once connection has been established.

Enter.

- 87 -

ACCESSING PC-DBA MAINTENANCE DX-120 Installation and Maintenance Manual

ACCESSING PC-DBA MAINTENANCE

The ability access the PC-DBA Maintenance Utilities requires the following two tasks:

• Download of the PC-DBA software onto a PC

• Sucessful and current connection between PC-DBA and the DX-120 processor

From the main PC-DBA Screen:

1) Go to Maintenance to display a list of features.

Maintenance Menu

2) Click on any of the options in this menu to access the corresponding feature (for more information
about using each feature refer to the pages shown below for each).

HINT

• Some items on this menu have submenus. Please refer to the main item for

more information on the submenus.

• For reference and when diagnosing any issues that may come up, the KSU

version number appears in the bottom right cornder of the main screen of PC­DBA.

- 88 -

DX-120 Installation and Maintenance Manual ACCESSING PC-DBA MAINTENANCE

Maintenance Utilities (Menu Items)

• Configuration (see below)

• Diagnosis

• Status

• SW/HW Revision

• Event

• Logon Data

• Remote Control

• T1 Maintenance

IMPORTANT!

• Remember, in order to access these utilities, there must be an active

connection between PC-DBA and the DX-120 switch ( see

PC-DBA to the DX-120 Switch” on page 84.)

• Refer to the HINT under step 6 on page 85 regarding the CTS indicator that

appears once connection has been established.

CONFIGURATION

When you select Configuration, the DX-120 processor sends the current hardware configuration to PC-DBA for
viewing. For each board viewed, the board type is displayed so that the hardware can be readily identified.

From the main PC-DBA Screen (during connection between the system and the switch - see page 84):

See “Connecting

1) Go to MaintenanceXConfiguration to display the Configuration screen.

• A message will appear to let you know that the configuration information is being transferred from

the switch and being received by PC-DBA.

A message will appear to let you
know the information is being
received/transferred.

This screen will appear after the
transfer is completed.

2) Click on any button on this screen to display configuration details about the corresponding board.

Configuration (continued on next page)

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ACCESSING PC-DBA MAINTENANCE DX-120 Installation and Maintenance Manual

Configuration (continued)

3)

EXAMPLE

Click the X at the top
right of each screen
to close them.

Click any of the
buttons to display
configuration
information for each
of the
corresponding
boards.

Each time you click a
button, configuration
information for the
corresponding board
appears in a second
window like this one.

4) Click the X in the top right corner of each window to close it.

DIAGNOSTICS

• The Diagnostics submenu allows you to do any of the following:

• Run a Self Test for:

- The System (with an option to wait for a report)

- Board(s)

- Port(s)

• Run a Report on a Self Test already performed on the system

• The Diagnostics function can be invoked to force a diagnostic test operation.

• The system performs this test automatically at the time it boots up (initial installation) and whenever

programmed to do so.

• By default, the factory settings for the system Self-Test Time is set to “NULL” (never performed). (For

programming details, refer to the DX-120 Technical Manual, Volume II, Programming.)

• The Diagnostic Self-Test can be invoked automatically via programming settings or manually.

• When the Diagnostic Self-Test is invoked, the DX-120 performs a list of software and hardware checks to

assure proper operation of the hardware installed.

• Diagnostic Test activity has the lowest priority in CPU processing tasks, therefore, the time required to

complete this testing operation could vary from one test to the next. When an automatic test or manual test
of the entire system is invoked, the testing time can take approxima te ly 30 min ute s.

• Manual diagnostics testing can be invoked for the entire system or for one module or module port. To do a

manual test, perform the following steps.

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Diagnositics (continued on next page)

DX-120 Installation and Maintenance Manual ACCESSING PC-DBA MAINTENANCE

Diagnostics (continued)

SELF TESTING THE SYSTEM

From the main PC-DBA Screen (during connection between the system and the switch - see page 84):

1) Go to MaintenanceXDiagnosticsXSelf test to display the the Self Test submenu.

2) Se lect System to display a screen asking you to decide if you want to:

• Wait for Results

This option allows you to run the test without getting results (you can run the report at any time
afterward using the “Test Report” option - see

IMPORTANT!

When invoking the test for the entire system, Vertical recommends that you not
select the “Wait for Result” option as this option takes several minutes to
complete. It also prevents you from using any other PC-DBA functions.

“Run the Self Test Report Only” on page 95).

• No, Don’t Wait (recommended option)

This option allows you to run the test “behind the scenes” while still performing other PC-DBA tasks.
This choice is recommended over the “Wait for Results” option as it allows you to continue working
while the test is being executed.

If you choose this option, you will not be able to
perform any other PC-DBA tasks until the test is completed.

This option allows you to run the test in the background so that you can
still work in PC-DBA. You can then use the Test report option from the
Diagnostics menu to obtain a specific report at a later time.

3) Select which option you want to use (e.g., Wait or Don’t Wait).

4) Click Go to run the self test of the system.

• If you selected “Wait for Resu lt s” the te st ma y t ake several minutes or more to complete. Once the

test is completed, a screen will appear which allows you to select the specific test report you want to
view (see step 2 on

• If you select “Do Not Wait”, the test will run while you continued to perform tasks within PC-DBA.

When the time is convenient, you can check for test results at a later time (see

Report Only” below).

• To run self tests specifically for boards/modules and ports, see below.

page 95)

“Run the Self Test

- 91 -

Diagnositics (continued on next page)

ACCESSING PC-DBA MAINTENANCE DX-120 Installation and Maintenance Manual

Diagnostics (continued)

SELF TEST BOARDS

You can run a self test and obtain report results for each the boards on your system. This test will let you know
which boards are installed and working.

Unlike the system self test, you will get the results immediately following the test. Depending upon the size of your
system, this test could take several seconds to a few minutes. Once the test is complete, you can select which
results you want to view.

1) Go to MaintenanceXDiagnosticsXSelf test to display the the Self Test submenu.

2) Select Board to have the system begin checking/testing the boards associated with your system.

• First, a message will appear to let you know that the boards are being tested:

• A message will then appear to let you know that the report is being received for the board test.

• The Board Select screen will appear.

3) Select the board for which you want to review the self-test results.

Self Test Boards (continued on next page)

- 92 -

DX-120 Installation and Maintenance Manual ACCESSING PC-DBA MAINTENANCE

Self Test Boards (continued)

4) Click Go to display the results for the specified board.

• You can review results for each board one at a time.

Use the scroll
bar to view all
of the results.

5) Use the scroll bar on the right of the window to review all of the results.

6) Click in the upper right corner of the window to close it and return to the Board Select screen.

7) Select another board for which you want to review self-test results.

OR

Click Cancel to close the Self-test feature.

SELF TEST PORTS

Y o u can run a self test and obtain report results for any port on your system. This test will let you know which ports
are available and working.

Unlike the system self test, you will get the results immediately following the test. Depending upon the size of your
system, this test could take several seconds to a few minutes. Once the test is complete, you can select which
results you want to view.

1) Go to MaintenanceXDiagnosticsXSelf test to display the the Self Test submenu.

2) Select Port to have the system begin checking/testing the ports associated with your system.

• First, a message will appear to let you know that the ports are being tested:

• A message will then appear to let you know that the report is being received for the port test.

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Self Test Ports (continued on next page)

ACCESSING PC-DBA MAINTENANCE DX-120 Installation and Maintenance Manual

Self Test Ports (continued)

• The port Select screen will appear.

3) Click the arrow at the right of the field to display a list of the ports that were included in the test.

HINT

Depending upon the selection you make in step 3, a second field may appear
requiring you to make your selection even more specific. Make the selection as
appropriate and go to step 4.

4) Click Go to display the results for the specified port.

• You can review results for each port one at a time.

Click the arrow here to
display the list of ports
that were included in the
test.

5) Click in the upper right corner of the window to close it and return to the Port Select screen.

6) Select another port for which you want to review self-test results.

OR

Click Cancel to close the Self-test feature.

Diagnositics (continued on next page)

- 94 -