Valcom VS Service Manual

AT&T

SERVICE MANUAL

PagePac® VS

(AT&T VERSION)

INSTALLATION

AT&T

SERVICE MANUAL

PagePac* VS

INSTALLATION

*Registered Trademark of Harris Corporation Dracon Division

SM–722994–004 Issue 1, February 1984

Service Manual

February 1984

Introduction

Page i

Table of Contents

Page

1-1

Overview System Components Power Requirements Environmental Requirements Functional Description

Connectors Switches and Controls

Installation

2. Overview Unpacking Instructions

Mounting Site Selection To Mount the Unit Installation of Optional Circuit Cards

FM Tuner Card Talk-Back Control Card

1-1 1-1

1-2 1-2 1-2

1-2 1-6

2-1 2-1 2-1 2-2 2-3 2-3

2-3

2-5 Connections to CPE Music Card

Connections to Terminal Block TB1

Ground Wire Connection Loudspeaker Connection Music-On-Hold Connection External FM Antenna Connection Off-Premises or Remote Amplifier Connection

PagePac VS to Host Telephone System Connection

COM KEY* 416 System Connections Horizon* Connections Dimension* Connections

*Registered Trademark of AT&T

2-7

2-8

2-9

2-13

2-15

Table of Contents/List of Figures

Page ii

Table of Contents (Cont’d.)

Installation (Cont’d.)

System Power-Up and FM Tuner Card Adjustment

System Power-Up FM Tuner Card Adjustment and Controls FM Tuner Card Station Selection FM Tuner Card Music-On-Hold Volume Adjustment

Service Manual

February 1984

Page

2-17 2-17 2-17 2-17 2-18

System Operation and Test

Overview Com-Key 416 Operation and Test

Zone Selection by DSS Buttons

Dial Zone Selection Horizon Operation and Test Dimension Operation and Test Talk-Back Test FM Background Music Test

Maintenance

4. Overview

3-1 3-1 3-2

3-2 3-2

3-3 3-4 3-5 3-5

4-1 4-1

List of Figures

1-1

PagePac VS PagePac VS Connectors, Switches, and Controls

1-2

(Cover Removed)

1-3

CPE Music Card Installed

1-4

Terminal Block TB1 Removing PagePac VS Cover

2-1

PagePac VS Mounting Space Requirements

2-2 2-3

Opening PagePac VS Talk-Back/FM Tuner Card

Protective Cover

2-4

Installation of Optional Circuit Cards

1-1 1-3

1-4 1-4 2-1 2-2

2-4 2-4

Service Manual

February 1984

2-5

Talk-Back Option Strap Locations

2-6

FM Antenna

2-7

Cable Connection to Com Key System

2-8

Cable Connection to HORIZON CS System

2-9

Cable Connection to DIMENSION System

2-10

FM Tuner Card Controls and Indicator

List of Figures/Tables

Page iii

List of Figures (Cont’d.)

Page

2-6 2-9 2-12 2-14 2-16 2-19

List of Tables

Terminal Block TB1 Connections

1-A

PagePac VS Switch Functions

1-B 2-A

Talk-Back Control Card Options

2-B

PagePac VS lnitial Setup

2-C

PagePac VS Com Key Connector Pinouts

2-D

FM Tuner Card Controls and Indicator Trouble Analysis

4-A

1-5 1-6 2-6 2-11 2-12 2-20 4-1

Service Manual

February 1984

Federal Communication Commission (FCC) Registration

Compliance

In compliance with Part 68 of the FCC Rules and Regulations, the

customer is advised as follows:

Standard Plugs and Jacks

Registered terminal equipment or protective circuitry may not be used with party lines or coin telephone lines.

Notification to Telephone Company

shall, before such connection is made, give notice to the telephone company of the particular line(s) to which such connection is to be made and shall provide to the telephone company the FCC registration number and the ringer equivalence of the registered protective circuitry. Notice of final disconnect shall also be given.

FCC Registration

Page A

Direct connection to the network must be through a USOC-type jack.

Customers connecting terminal equipment to the telephone network

Separate Wiring

Compliance with FCC Registration requires that wiring between PagePac VS and the loudspeakers be in a cable harness separate from all other leads. It is also a requirement that the PagePac VS be installed by a trained and authorized agent of the manufacturer or under the supervision of a licensed professional engineer, as provided for in section 68.215 of the FCC Rules and Regulations.

Separate Housing

The PagePac VS has its own housing and mounts externally to the associated telephone system.

Incident of Harm

Should terminal equipment cause harm to the telephone network, the telephone company shall, where practicable, notify the customer that temporary discontinuance of service may be required. However, where prior notice is not practicable, the telephone company may temporarily disconnect service forthwith, if such action is reasonable in the circumstances. In case of temporary discontinuance, the telephone company shall (1) promptly notify the customer of such temporary discontinuance, (2) afford the customer the opportunity to correct the situation which gave rise to the temporary discontinuance, and (3) inform the customer of his right to bring a complaint to the Commission pursuant to the procedure set out in Subpart E of Part 68.

FCC Registration

Page B

Changes in Telephone Company Facilities, Equipment,

Operations or Procedures

The telephone company may make changes in its communications facilities, equipment, operations or procedures, when such action is reasonably required in the operation of its business and is not inconsistent with the rules and regulations of Part 68. If such changes can be reasonably expected to render any customer’s terminal equipment incompatible with the telephone company communications facilities, or require modification or alteration of such terminal equipment, or otherwise materially affect its use or performance, the customer shall be given adequate notice in writing, to allow the customer an opportunity to maintain uninterrupted service.

Repairs

Repair of registered terminal equipment and registered protective circuitry shall be accomplished only by the manufacturer or by its authorized agent. This applies at any time during and after the warranty period.

Service Manual

February 1984

Equipment Malfunctions

When trouble is experienced, the customer shall disconnect the registered equipment from the telephone line to determine if the registered equipment is malfunctioning, and that, if the registered equipment is malfunctioning, the use of such equipment shall be discontinued until the problem has been corrected.

Registration Number

The type of connecting arrangement (jack) to be ordered from the telephone company is indicated below as typical. Other standard jacks may be used for specific applications.

●

Typical Connecting Jack:

USOC RJ-18C

●

FCC Registration Number:

APF9Q9-70328-OT-N

●

Ringer Equivalence:

0.8B

Service Manual

February 1984

Overview

This service manual contains installation, test and maintenance procedures for PagePac VS, a 35-watt zone paging unit designed to operate with most telephone systems. Connection instructions for compatible host systems are contained in Section 2.

PagePac VS provides up to three separate paging zones (zone paging) and all call paging (paging into all zones at once). Audio output to the paging loudspeakers can be set at either 70.7 or 25 volts AC. Three optional features, Talk-Back, FM background music, and Music-On-Hold, are also available.

Operating instructions for the various telephone systems to which PagePac VS may be connected, as well as ordering and warranty information are contained in the PagePac VS User’s Guide.

Introduction

Page 1-1

System Components

PagePac VS is a single self-contained unit housed within a protective plastic cover (Figure 1-1). Optional features such as Talk-Back, FM background music and Music-On-Hold are provided by one or two plug-in circuit cards. If ordered, these cards are shipped in the same container with PagePac VS.

Other components needed to complete the paging system are loudspeakers, speaker wire, and connectors, all of which must be ordered separately. Refer to Section 2, Installation, for connectors required to connect PagePac VS to various types of telephone systems.

Figure 1-1

PagePac VS

Introduction

Page 1-2

Power Requirements

source through the unit’s 6-foot power cord which is equipped with a 3-prong plug.

Service Manual

February 1984

PagePac VS can be connected to any 110-120 volt, 60 Hz AC power

Caution:

Damage may occur if the unit is connected to a source of direct current (DC) or an AC voltage greater than 120 volts RMS, 60 Hz.

Environmental Requirements

PagePac VS is designed for indoor installation only and must be mounted in an area free of moisture and temperature extremes. Clear areas must be provided above and below the unit to ensure adequate cooling airflow. Physical dimensions of the unit, including cover, are:

Width

- 14½ inches (36.8 cm) Height - 18 inches (45.7 cm) Depth

- 5¼ inches (13.3 cm) Weight - 25 pounds (11.3 kg)

Functional Description

Figure 1-2 shows the location of the PagePac VS connectors, switches,

and controls. A description of their purpose and function follows.

Connectors

●

TRUNK - A standard 6-conductor modular jack used for interfacing with HORIZON

●

416 COM KEY - A standard 25-pair connector used for interfacing with COM KEY

●

J101 - Card connector which accepts optional plug-in FM tuner card. A

or DIMENSION® Systems.

or MERLIN® Systems.

Customer Provided Equipment (CPE) music card (Figure 1-3) is already installed in J101. This card allows background music to be provided from an external source, such as a Hi Fi or radio, when the FM tuner card is not used.

●

J102 - Card connector which accepts optional plug-in talk-back control card. Note: A talk-back continuity card is placed in talk-back connector J102

at the factory. This continuity card must be in place whenever a talkback control card is not installed.

●

Terminal Block TB1 - A quick-disconnect terminal block which provides connections for loudspeakers, system ground, off-premise or remote amplifier, Music-On-Hold option, and FM antenna. The terminals of TB1 are arranged in a row along the top and bottom of the block, with an upper and lower terminal assigned to each connection (Figure 1-4). Either or both terminals may

Service Manual

February 1984

Introduction

Page 1-3

J101 MUSIC CARD CONNECTOR (FM TUNER CARD SHOWN INSTALLED)

OP/BUSY SWITCH

POWER ON/OFF SWITCH

T/R IC1/IC2 SELECT SWITCH

MUSIC GAIN CONTROL

LC IC1/IC2 SELECT SWITCH

J102 TALK-BACK CARD CONNECTOR (TALK-BACK CARD SHOWN INSTALLED)

25/70.7 VAC SELECT SWITCH S1

(ZONES) YES/NO SWITCH

6-CONDUCTOR MODULAR TRUNK JACK

Figure 1-2.

TALK-BACK SWITCH S2

TERMINAL

BLOCK TB1

25-PAIR COM KEY CONNECTOR

DSS BUTTON ENABLE SWITCHES DSS-7 THRU DSS-10

PagePac VS Connectors, Switches, and Controls (Cover Removed)

Introduction

Page 1-4

Service Manual

February 1984

J101 MUSIC CARD CONNECTOR (CPE MUSIC CARD SHOWN INSTALLED)

CONNECTIONS FOR EXTERNAL MUSIC SOURCE

TERMINAL BLOCK TB1

Figure 1-3.

CPE Music Card Installed

UPPER TERMINAL LATCH (TYPICAL)

UPPER TERMINAL (TYPICAL)

LOWER TERMINAL (TYPICAL)

Figure 1-4.

Terminal Block TB1

LOWER TERMINAL LATCH (TYPICAL)

Service Manual

February 1984

Introduction

Page 1-5

be used. For example, when connecting a Zone 1 loudspeaker, the cable from ZONE 1 can be connected to the upper or lower terminals, or if two loudspeakers are used in ZONE 1, one cable can be connected to the upper terminals, and the other to the lower terminals. Table 1-A describes the connections made to TB1.

Table 1-A. Terminal Block TB1 Connections

Connection

Zone 1 loudspeaker cable(s) Zone 1 loudspeaker cable shield

Zone 2 loudspeaker cable(s) Zone 2 loudspeaker cable shield

Zone 3 loudspeaker cable(s) Zone 3 loudspeaker cable shield

Earth-ground wire (water pipe or telephone system ground)

TB1 Terminals

1 and 2

ZONE 1

1 and 2

ZONE 2

1 and 2

ZONE 3

GND G

Off-premise or remote amplifier input cable (balanced 600-ohm, 0dB paging output is controlled by Zone 1)

Telephone system music-on-hold input cable (1 watt music output is supplied by optional FM tuner card)

Antenna leads for use with optional FM tuner card

0db R1 and T1

Ω 1 and 2

ANT 1 and 2

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