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

Copyright ©HARRIS CORPORATION 1984.

SM–722994–004
Issue 1, February 1984

Service Manual

February 1984

1.

Introduction

Table of Contents

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

2-7

2-7

2-7

2-8

2-8

2-8

2-9

2-9

2-13

2-15

Table of Contents/List of Figures

Page ii

Table of Contents (Cont’d.)

2.

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

3.

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.

1.

Introduction

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

S

1 and 2

ZONE 2

S

1 and 2

ZONE 3

S

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

8

ANT 1 and 2

Introduction

Page 1-6

Service Manual

February 1984

Switches and Controls

The Power ON/OFF switch is a combination power switch, power on/off
indicator and circuit breaker. When the switch is set to ON, power is applied
to the unit and the switch is lit by an internal lamp. If a power overload
occurs, the switch automatically trips to the OFF position, power is removed
from the unit, and the switch lamp goes out.

The MUSIC GAIN control adjusts the level of background music pro­vided by the optional FM tuner card or CPE music card and heard over the
paging system’s loudspeakers. The switches and controls of the optional FM
tuner card are described in Section 2.

The Power ON/OFF switch and MUSIC GAIN control may be used at
times during system operation. The remaining switches are set at time of

installation and should not require resetting during normal operation. The
purpose and function of each switch is described in Table 1-B.

Switch

S1

S2

(ZONES)
YES/NO

OP/BUSY

T/R IC1/IC2

and

LC IC1/IC2

DSS 7, 8, 9, 10

Table 1-B. PagePac VS Switch Functions

Function

Selects 25 or 70.7 VAC output to loudspeakers.

Selects which zones will have Talk-Back feature

(if provided); A = All Call.

Selects either zone paging or immediate all call
paging (all zones cut-through immediately on
package access).

Selects OPERATE or BUSY mode. BUSY is used
to “BUSY OUT” the unit any time it is off or fails but is still
connected to AT&T Information Systems equipment;
OPERATE is used when unit is available for use.

Selects either IC1 or IC2 as audio source for
COM KEY systems only (both switches must always
be in the same position). In single primary telephone
systems, both switches are always set to IC1.

Enables or disables zone selection DSS leads on
COM KEY systems only.

7 = Zone 1
8 = Zone 2
9 = Zone 3

10 = All Call
Numbers correspond to DSS buttons on station set.
ON position enables the DSS lead, and the corresponding

station set button may be used to select indicated
zone; when DSS operation is not used for zone selection,
switches should be in OPEN position.

Service Manual

February 1984

Overview

This section contains unpacking, mounting, and connection instructions

for the PagePac VS.

Unpacking Instructions

Unpack PagePac VS as follows:

1.

2.

3.

Installation

2.

Remove unit carefully from carton.
Remove mounting-hole template from beneath unit cover. This cover is held

in place by four magnets. To remove, grasp cover firmly and pull free of
chassis as shown in Figure 2-1. Set template aside for future use.

Locate and remove optional talk-back control and FM Tuner cards (if sup­plied) from carton. They are individually packaged and packed in the main
carton. Remove card(s) from container(s) and set aside.

Installation

Page 2-1

COVER

CHASSIS

Figure 2-1. Removing PagePac VS Cover

Installation

Page 2-2

Mounting Site Selection

sure location chosen is free from adverse conditions such as excessive heat,
moisture, or vibration and allows a minimum of 6 inches (15.2 cm) free air
space both above and below the unit. See Figure 2-2 for mounting space
requirements.

unless an extension cord is to be used. A standard AC wall outlet may be
used, but it should not be controlled by a switch.

Service Manual

February 1984

PagePac VS is designed to be wall-mounted at an indoor location. En-

Ensure also that an AC power source is within 6 feet of the location

18 IN.

WITH COVER

(45.7 CM)

CLEAR
ZONE

14½ IN. (36.8 CM)

6 IN.

(15.2 CM)

30 IN.

(76.2 CM)

NOTE:

Figure 2-2.

CLEAR
ZONE

Clear zones must remain free of obstructions at all times.

6 IN.

(15.2 CM)

PagePac VS Mounting Space Requirements

Service Manual

February 1984

To Mount the Unit

The following tools and equipment are required:

●

●

Mount the unit as follows:

1.

2.

3.

Installation

Page 2-3

Four round-head mounting screws. Screw heads should not exceed ½ inch
in diameter.

Slot or Phillips screwdriver, as required.

Mark the location of the four mounting screws using the cardboard template
supplied with the unit.

Install the four mounting screws.
Mount the unit on the wall using the four keyhole cutouts located on the

chassis backplate; tighten the four mounting screws.

Installation of Optional Circuit Cards

Optional PagePac VS features are provided by the plug-in talk-back con­trol and FM tuner cards. If one or both cards have been ordered, they will be
found packaged separately and included in the main carton. They must be
configured and installed to provide the desired features.

FM Tuner Card

FM Tuner Card, PEC 58300, provides both FM background music and

Music-On-Hold. Install the card as follows:

1.

Open the talk-back/FM tuner card protective cover. This cover is hinged on
the left side and held in place on the right side by magnets. To open, grasp
the cover on the right side, pull and open to the left as shown in Figure 2-3.

2.

Remove the CPE music card; save for future use, if needed, to allow CPE
music source.

3.

Plug FM tuner card into connector J101 as shown in Figure 2-4. See System
Power-Up and FM Tuner Card Adjustment Procedure (page 2-17) for tuning
instructions.

Close the talk-back/FM tuner card protective cover.

4.

Installation

Page 2-4

Service Manual

February 1984

Figure 2-3.

FM TUNER
CARD

TALK-BACK/
FM TUNER CARD
PROTECTIVE
COVER

Opening PagePac VS Talk-Back/FM Tuner Card Protective Cover

TALK-BACK

J101

CONTROL CARD

J102

Figure 2-4.

Installation of Optional Circuit Cards

Service Manual

February 1984

Talk-Back Control Card

between the telephone and paging loudspeakers. A voice-activated switch on
the card is controlled by the person making the page. When that person
speaks, the paging system functions in a normal manner. But when he/she is
silent, the loudspeakers become sensitive microphones. If someone in the
paging zone replies, the voice is amplified and transmitted back to the
telephone.

Installation

Page 2-5

Talk-Back Control Card, PEC 58000, provides two-way communication

Note:

When the talk-back control card is installed, shielded speaker
wire should be used.

The talk-back control card can provide a single one-second 440 Hz
warning tone to the loudspeaker(s) whenever a talk-back zone is dialed.
Although this initial warning tone is an option, it must always be selected.
Cards are shipped with this feature activated. An additional option provides

repetitive one-second tones every 15 or 30 seconds for as long as the system
remains in the listen mode, or until the person paging speaks or abandons
the page and replaces the handset.

Prior to installation into the PagePac VS, the talk-back card must be
configured (optioned) to produce the desired features. Configure and install
the card as follows:

Configure talk-back control card for the desired features by adding or remov-

1.
ing option straps on option block as shown in Table 2-A and Figure 2-5.

2.

Open the talk-back/FM tuner card protective cover. This cover is hinged on
the left side and held in place on the right side by magnets. To open, grasp
the cover on the right side, pull and open to the left as shown in Figure 2-3.

3.

Set DIP switch S2 (Figure 1-2) for zones in which talk-back is to be enabled.
For example, if Zone 1 is to have talk-back, set switch S2-1 to ON.

TALK-BACK
SWITCH S2

TALK-BACK ZONE 1

4.

Remove talk-back continuity card.

Note:

Save the talk-back continuity card to restore one-way paging in the
event of a talk-back control card malfunction or to remove the talk­back feature at a future time.

Plug talk-back control card into connector J102 in the manner shown for FM

5.
tuner card in Figure 2-4.

Close the protective talk-back/FM tuner card cover.

6.

Installation

Page 2-6

Service Manual

February 1984

Table 2-A.

Talk-Back Control Card Options

Required Feature

High Sound Level At Telephone To
Switch Talk-Back Circuit

Low Sound Level At Telephone To
Switch Talk-Back Circuit

Initial Warning Tone

Repetitive Warning Tone

No Repetitive Warning Tone

Repetitive Warning Tone at 15-Second
Intervals

Repetitive Warning Tone at 30-Second
Intervals

Option

Strap No.

7-8

7-8

1-2

3-4

3-4

5-6

5-6

Remarks

Remove strap

Add strap

Always required;
add strap

Remove strap

Add strap

Add strap

Remove strap

OPTION
STRAP
NO. 5-6

OPTION
STRAP

NO. 7-8

OPTION

BLOCK

TALK-BACK
CONTROL CARD
(SHOWN INSTALLED)

Figure 2-5.

OPTION
STRAP
NO. 3-4

OPTION
STRAP
NO. 1-2

Talk-Back Option Strap Locations

Service Manual

February 1984

Connections to CPE Music Card

If background music is provided from an external source (Hi Fi, etc.),
connect the wires from this music source to terminals MT and MR on the
CPE music card (Figure 1-3); the order of connection is not important. The in­put signal from the external source must be dry (no DC voltage), 600-ohm,
balanced, and 0 dBm (0.776V max.).

Connections To Terminal Block TB1

Installation

Page 2-7

Note:

Ground Wire Connection

or DIMENSION systems. Connect ground wire to TB1 as follows:

Loudspeaker Connection

two loudspeaker runs per zone may be connected to TB1. Speaker cable

may be either 2-conductor shielded or 2-conductor unshielded.

Terminal block TB1 (Figure 1-3) is a quick-disconnect type. To
connect a wire to TB1, strip insulation back approximately
¼-inch, press applicable terminal latch, and insert wire. Either
the upper or lower terminals, or both, at each position may be
used.

A ground wire is required for all installations interfacing with HORIZON

Caution:

1.

2. Connect other end to the same earth ground used for the host system.

PagePac VS provides paging into three separate zones. A maximum of

Do Not install a ground wire if the host system is a Com Key.

Connect ground wire (HORIZON or DIMENSION systems only) to terminal
GND G.

Connect loudspeaker cable(s) to TB1 as follows:

Separate and strip insulated wires in loudspeaker cable(s) from Zone 1. Con-

1.
nect one wire to terminal 1, ZONE 1 and the other to terminal 2, ZONE 1;
the order of connection is unimportant.

If shielded cable is used, connect cable shield to terminal S, ZONE 1.

2.
Repeat steps 1 and 2 for Zones 2 and 3 by connecting cables from the

3.
zones to the applicable ZONE 2 and ZONE 3 terminals.

Installation

Page 2-8

Music-On-Hold Connection

nect a 2-conductor cable from the host telephone system’s Music-On-Hold
input to terminals 1 and 2, 8
tant. These terminals provide up to a 1-watt output from the FM tuner card.
Output is adjusted with the MON VOL control on the FM tuner card
(Figure 2-10).

Service Manual

February 1984

If Music-On-Hold is to be provided from the optional FM tuner card, con-

Ω on TB1. The order of connection is unimpor-

Note:

External FM Antenna Connection

An FM antenna is required for both FM background music and Music­On-Hold. An indoor antenna of the type shown in Figure 2-6 will be sufficient
in most areas. The antenna can be made from 22 AWG twisted-pair wire or
300-ohm television twin lead. In some areas a more extensive antenna
system may be required to ensure good reception. Connect antenna leads to

TB1 as follows:

Off-Premises or Remote Amplifier Connection

If the paging system includes an off-premises or remote amplifier, con­nect a cable from the amplifier’s audio inputs to terminals 0db R1 and T1 on
TB1. The order of connection is unimportant. Terminals R1 and T1 provide a
balanced, 600-ohm 0 dBm output.

When MON VOL is adjusted, the level of the background music
on the loudspeakers is also changed.

1.

Connect antenna leads to terminals ANT 1 and ANT 2; the order of connec­tion is unimportant.

2.

Orient antenna for best reception; attach to a wall with tape or non-metallic
hardware.

Caution:

If an outdoor antenna is connected to the antenna terminals, the
antenna system must be grounded in accordance with Articles 810
and 820 of the National Electrical Code ANSI/NFPA No. 60-1968.

Off-premise or remote paging is under control of Zone 1. To page into
the off-premise or remote location, the user accesses Zone 1. An all-call page
will also access the remote or off-premise location.

Service Manual

February 1984

Installation

Page 2-9

½ IN.

29½ IN.

TO TERMINALS
ANT 1 AND 2
ON TB1

59 IN.

UP TO 8 FT
MAXIMUM
FEED LINE

STRIP AND TWIST
ENDS TOGETHER
(2 PLACES)

Note 1:
Note 2:

Make from 22 AWG twisted-pair wire or TV twin lead.
Attach to wall with tape or nonmetallic hardware.

Figure 2-6.

FM Antenna

PagePac VS to Host Telephone System Connection

Com Key 416 System Connections

PagePac VS plugs into a Com Key system as if it were a secondary sta­tion. All paging functions are provided with no other connections necessary.
The interface is made with a 25-pair A25B connector cable. If necessary, this
connector can be extended to a backboard using a standard B25A cable
terminated on a Type 66 (or other standard) connecting block for cross­connection to older technology Com Key systems, i.e., Com Key 718, Com
Key 1434, and Com Key 2152.

The following equipment is required for Com Key 416 connection:

●

A25B connector cable (double-ended) of sufficient length to reach from the
PagePac VS to a telephone system bridging adapter.

●

B25A cable and Type 66 connector block (or equivalent), as required.

Installation

Page 2-10

Service Manual

February 1984

Connect PagePac VS to a Com Key 416 system as follows:

1. For Com Key 416 operation on systems with two PRIMARY stations, set
switches T/R and LC to either IC1 or IC2 (both switches must be in the same
position).

LC IC1/IC2
SELECT

SWITCH
T/R IC1/IC2
SELECT
SWITCH

TWO PRIMARY STATIONS

Note:

Once this path is selected, the remaining intercom path will not have
access to the PagePac VS. Com Key 416 standard paging and Hands
Free Answer on Intercom (HFAI) will continue to function normally and
may coexist with PagePac VS on the same host system.

2.

On systems with one PRIMARY station, set switches T/R and LC to IC1.

LC IC1/IC2
SELECT
SWITCH

T/R IC1/IC2
SELECT
SWITCH

ONE PRIMARY STATION

For dial zone selection, set all DSS switches to OPEN.

3.

DSS BUTTON
ENABLE SWITCHES

DSS-7 THRU DSS-10

DIAL ZONE SELECTION

4.

For zone selection by Direct Station Selection (DSS) button, set the ap­plicable DSS switch to ON for each active zone. For example, to activate
Zone 1, set switch DSS-7 to ON (Table 2-B).

DSS BUTTON
ENABLE SWITCHES
DSS-7 THRU DSS-10

DIRECT STATION SELECTION

Service Manual

February 1984

Installation

Page 2-11

Table 2-B. PagePac VS Initial Setup

Operating Feature

Selectable Zone Paging
All Call Paging
Unit Operative
Unit Inoperative OP/BUSY BUSY

Audio Source (Com Key Only)

IC1 Access
IC2 Access

DSS Button Zone Selection
(Com Key Only)

DSS

7 Enabled (Zone 1)

DSS

7 Disabled (Zone 1)

DSS

8 Enabled (Zone 2)

DSS

8 Disabled (Zone 2)

DSS

9 Enabled (Zone 3)

DSS

9 Disabled (Zone 3)

DSS

10 Enabled (All Call)

DSS

10 Disabled (All Call)

Switch

(ZONES)
(ZONES)
OP/BUSY OP

T/R and LC IC1
T/R and LC

(See Notes 1 and 2)

DSS-7 (1)
DSS-7 (1)
DSS-8 (2)
DSS-8 (2)
DSS-9 (3)
DSS-9 (3)
DSS-10 (4)
DSS-10 (4)
(See Notes 2 and 3)

YES
NO

IC2

ON
OPEN
ON
OPEN
ON
OPEN
ON
OPEN

Position

Talk-Back

Zone 1 Enabled
Zone 1 Disabled
Zone 2 Enabled
Zone 2 Disabled
Zone 3 Enabled
Zone 3 Disabled
All Call Enabled
All Call Disabled
(See Note 4)

25 VAC Output

70 VAC Output

Note 1: For dial zone selection, ensure switches DSS-7 thru DSS-10 are set to OPEN.
Note 2:

Note 3: Number in parenthesis denotes marking on DSS DIP switch.
Note 4: Talk-Back on All Call is not recommended, as the combined noise levels from all

HORIZON CS or DIMENSION systems do not require specific setting of switches T/R, LC,
and DSS-7 thru DSS-10.

loudspeakers may be too high to allow usable talk-back.

S2-1
S2-1
S2-2
S2-2
S2-3
S2-3
S2-A
S2-A

S1

S1

ON
OPEN
ON
OPEN
ON
OPEN
ON
OPEN

25

70

Installation

Page 2-12

5.

Refer to Table 2-B and set all other switches as required for your installation.

6.

Connect a A25B connector cable (double-ended) between the 25-pair 416
COM KEY connector and a telephone system bridging adapter (Figure 2-7).
Pinouts for the 416 COM KEY connector are listed in Table 2-C.

Table 2-C. PagePac VS Com Key Connector Pinouts

Service Manual

February 1984

Pin No.

13
15
16
18
21
22
38
40
41
43
46
47
48
49
50

*Caution:

Circuit

Intercom 1, Ring
Intercom 1, Lamp Control
Intercom 2, Ring
Intercom 2, Lamp Control
DSS7
DSS9
Intercom 1, Tip
Intercom 1, Lamp Power
Intercom 2, Tip
Intercom 2, Lamp Power
DSS8
DSS10

Color Code

(G-BK)
(S-BK)
(BL-Y)

(G-Y)

(BL-V)

(O-V)
(BK-G)
(BK-S)
(Y-BL)

(Y-G)
(V-BL)

(V-O)

(V-G)
(V-BR)

(V-S)

Do not connect external ground to this pin when used with
Com Key 416.

Note:

Connect the 25-pair A25B cable to bridging adapter
as if the PagePac VS were a secondary station.

BRIDGING ADAPTER
TO COM KEY SYSTEM

25-PAIR
A25B CABLE
(DOUBLE-ENDED)

Figure 2-7.

Cable Connections to Com Key System

Service Manual

February 1984

HORIZON Connections

switches T/R, LC, and DSS-7 thru DSS-10 on the PagePac VS. These func­tions are selected automatically when the modular TRUNK jack is used. Con­nect as follows:

The following equipment is required:

●

6-conductor modular cord (RJ-18C standard telephone 6-conductor modular
connectors) of sufficient length to reach from the PagePac VS to a compati­ble trunk circuit modular connector on the host system.

●

An LC73 trunk circuit with an appropriate connector and trunk port dial code
(10X) assignment.

HORIZON CS trunk operation does not require any specific settings for

1. Refer to Table 2-B and set the PagePac VS switches as required for your
installation.

2. Connect the 6-conductor modular cord between the PagePac VS TRUNK
connector and an appropriate trunk circuit modular connector on the host
system (Figure 2-8).

Installation

Page 2-13

Note:

The tip and ring interface between the PagePac VS and a HORIZON
CS trunk circuit is made via the TRUNK connector described above.

3.

Enter the appropriate data, shown below, into the HORIZON CS system via
the Service Access Unit (SAU).

Horizon CS System

Item

1
2
3
4
5
6

Data

07
0000
0200

10X

1

NA

7 NA

Installation

Page 2-14

Service Manual

February 1984

Note 1:

LC73

TRUNK CIRCUIT

T
R

Connect modular cord to the LC73 trunk circuit
through the appropriate connecting block.

RJ-18

MODULAR JACK

MODULAR CORD

T
R

GREEN

RED

WHITE

BLUE

MODULAR
CORD

PAGEPAC VS

TRUNK CONNECTOR

(MODULAR)

PIN

3 (T)

4 (R)

1 (MB)

6 (MB)

Note 2: The LC73 uses only the tip and ring, or pins 3 and 4 as indicated. Pins 2

and 5 are not used at all. Pins 1 and 6 provide a busy out feature not used
with the HORIZON CS.

Figure 2-8.

Cable Connections to HORIZON CS System

Service Manual

February 1984

DIMENSION Connections

switches T/R, LC, and DSS-7 thru DSS-10 on the PagePac VS. These func­tions are selected automatically when the modular TRUNK jack is used.
Connect as follows:

The following equipment is required:

●

6-conductor modular cord (RJ-18C standard telephone 6-conductor modular
connectors) of sufficient length to reach from the PagePac VS to a compati­ble trunk circuit modular connector on the host system.

●

An LC13 circuit pack with an appropriate connector, a trunk group assign­ment, and a paging access code assignment.

DIMENSION trunk operation does not require any specific settings for

Refer to Table 2-B and set the PagePac VS switches as required for your

1.
installation.

Connect the 6-conductor modular cord between the PagePac VS TRUNK

2.
connector and an appropriate trunk circuit modular connector on the host
system (Figure 2-9).

Installation

Page 2-15

Note: The tip and ring interface between the PagePac VS and a

DIMENSION trunk circuit is made via the TRUNK connector
described above.

Prepare the LC13 circuit pack as you would for a Loop Trunk Type 54

3.
(loudspeaker paging).

●

For DIMENSION types 100 and 400, use Procedure 13.

●

For DIMENSION types 600 and 1200, use Procedure 100.

4.

Set the LC13 circuit pack switches as shown below.

CKT 0

Switch

J4
J5
J6

Position

OPEN
OPEN
OPEN

CKT 1

Switch Position

J1
J2
J3

OPEN
OPEN
OPEN

Installation

Page 2-16

Service Manual

February 1984

Note 1:

LC13

CIRCUIT PACK

T
R
S
S1

Connect modular cord to the LC13 circuit
pack through the appropriate connecting block.

RJ-18

MODULAR JACK

MODULAR CORD

T
R
S

S1

GREEN

RED

WHITE

BLUE

MODULAR
CORD

PAGEPAC VS

TRUNK CONNECTOR

(MODULAR)

PIN

3 (T)

4 (R)

1 (MB)

6 (MB)

Note 2: Only half of the LC13 circuit pack is required when connecting to the Page Pac

VS. The S and S1 connections are required only when MAKE BUSY function
is provided (see OP/BUSY switch. Table 1-B).

Figure 2-9. Cable Connections to DIMENSION System

Service Manual

February 1984

System Power-Up and FM Tuner Card Adjustment

System Power-Up

1. Set the PagePac VS Power ON/OFF switch (Figure 1-2) to OFF.

2. Plug PagePac VS power cord into an AC outlet.

Installation

Page 2-17

Caution:

3. Turn MUSIC GAIN control (Figure 1-2) to midrange.
Set Power ON/OFF switch to ON.

4.

FM Tuner Card Adjustment and Controls

The optional FM tuner card incorporates automatic frequency control
(AFC), a built-in speaker to aid in tuning in a station, and a visual tuning in­dicator. Refer to Figure 2-10 for control and indicator locations and Table 2-D
for the function and use of each control.

FM Tuner Card Station Selection

Tune in an FM station as follows:

1.

In no case should this unit be connected to any source of direct
current (DC) or any AC voltage exceeding 120 volts RMS, 60 Hz.

Open the talk-back/FM tuner card protective cover. This cover is hinged on
the left side and held in place on the right side by magnets. To open, grasp
the cover on the right side, pull and open to the left as shown in Figure 2-3.

Note:

Refer to Figure 2-10 for steps 2 thru 9.

2.

Set tuner SPK switch to ON to disconnect the paging system loudspeakers.
The FM station should now be heard from the built-in monitor speaker.

If necessary, adjust monitor speaker volume with tuner MON VOL control.

3.
Adjust with a small screwdriver clockwise to increase volume,
counterclockwise to decrease volume.

4.

Set tuner AFC switch to OFF.
Turn tuning dial to the desired station. The TUNE indicator will light when the

5.
station is precisely tuned.

6.

Set tuner AFC switch to ON.

7.

Set tuner SPK switch to OFF to reconnect paging system loudspeakers. The
monitor speaker should now be off.

Installation

Page 2-18

Set tuner MON VOL control to midrange.

8.
Check that tuner ANT switch is still set to EXT.

9.

10.

If Music-On-Hold option is not connected, close talk-back/FM tuner card pro­tective cover, and reinstall PagePac VS cover.

Adjust music level with PagePac VS MUSIC GAIN control (Figure 1-2).

11.

Service Manual

February 1984

Note:

FM Tuner Card Music-On-Hold Volume Adjustment

Adjust Music-On-Hold volume as follows:

Adjust Music-On-Hold volume with the tuner MON VOL control (Figure 2-10).

1.
Adjust with a small screwdriver clockwise to increase volume and
counterclockwise to decrease volume.

2.

If necessary, readjust background music volume with PagePac VS MUSIC
GAIN control (Figure 1-2).

3.

Check that tuner ANT switch is still set to EXT.

4.

Close talk-back/FM tuner card protective cover.

5.

Reinstall PagePac VS cover.

If your PagePac VS is being supplied with background music from an
external source, through the CPE music card, the PagePac MUSIC
GAIN control should be set to a midrange position. Music tuning and
volume control adjustments must then be made from the external
music source.

Service Manual

February 1984

Installation

Page 2-19

MONITOR

SPEAKER

FM TUNER CARD
CONTROL PANEL

FM TUNER

CARD

TUNING
DIAL

MON VOL
(MONITOR VOLUME)
CONTROL

TUNE
INDICATOR

AFC

SWITCH

SPK (SPEAKER)
SWITCH

ANT (ANTENNA)
SWITCH

MON
VOL

TUNE

ON
AFC
OFF

ON
SPK
OFF

EXT
ANT
INT

Figure 2-10. FM Tuner Card Controls and Indicator

FM TUNER
CARD CONTROL
PANEL

Installation

Page 2-20

Service Manual

February 1984

Table 2-D. FM Tuner Card Controls and Indicator

Control

MON VOL
Control

TUNE
Indicator tuned to center frequency.

AFC
Switch trol (AFC) in the ON position; operation; set to OFF position for

Controls volume of both monitor Set to midrange unless music-on­speaker and background music
provided to paging system loud- with small screwdriver clockwise to
speakers.
Note: Background music volume
should be controlled with MUSIC
GAIN control.

Red LED lights when FM station is Use for precise station tuning

Enables Automatic Frequency Con­switches AFC out in the OFF

position.

Purpose

hold adjustment is required; adjust
increase volume or counterclock-

wise to decrease volume.

with AFC switch set to off.

Leave in ON position for normal
station tuning.

Remarks

SPK
Switch

ANT
Switch

Tuning
Dial

Facilitates FM station tuning. In the
ON position, background music to operation; set to ON position for FM
loudspeakers is disconnected and
built-in monitor speaker is operative;
in the OFF position, monitor
speaker is disconnected and system
loudspeakers are operative.

Selects internal (INT) or external
(EXT) antenna for FM tuner card.

Tunes stations on 88 to 108 MHz Use in conjunction with TUNE in­FM broadcast band.

Leave in OFF position for normal
station tuning.

Set to EXT position when tuner is
used with PagePac VS.

dicator for precise station tuning.

Service Manual

February 1984

Overview

This section contains instructions for operating and testing the PagePac
VS with Com Key 416, HORIZON, and DIMENSION paging systems, and
testing talk-back and FM background music options.

System Operation and Test

3.

System Operation and Test

Page 3-1

System Operation and Test

Page 3-2

Com Key 416 Operation and Test

Zone Selection By DSS Buttons

Operate Com Key system and test DSS zone selection paging as

follows:

Pick up handset.

1.
On telephone instrument, press intercom button (IC1 or IC2) assigned to pag-

2.
ing access.

Make your page by momentarily pressing on telephone instrument each DSS

3.
button listed below that corresponds to an active zone or All Call; ensure
page is heard in the applicable zone(s).

Service Manual

February 1984

Zone Selection

Zone

All Call

1
2
3

4. When page is completed, replace handset (hanging up receiver releases the
PagePac VS).

Dial Zone Selection

Operate Com Key system and test dial zone selection paging as follows:

1.

Pick up handset.
On telephone instrument, press intercom button (IC1 or IC2) assigned to pag-

2.
ing access.

3.

Make your page by selecting from list below each active zone or All Call, and
dialing the assigned dial code; ensure page is heard in the applicable
zone(s).

Zone Selection

DSS Button

10

7
8
9

Zone Dial Code

All Call

1
2
3

When page is completed, replace handset.

4.

Note:

Dial zone selection available with Touch Tone operation only.

1
4
5
6

Service Manual

February 1984

Horizon Operation and Test

Operate HORIZON System and test paging as follows:

1.

2.

3.

System Operation and Test

Page 3-3

Pick up handset.
Select either a free station line or the pool-facility key assigned to paging,

then dial the paging access code (10X).
Make your page by selecting from list below each active zone or All Call and

dialing the assigned dial code; ensure page is heard in the applicable
zone(s).

Zone Selection

Zone

All Call

1
2
3

When page is completed, replace handset (hanging up receiver releases the

4.
PagePac VS).

Dial Code

1
4
5
6

System Operation and Test

Page 3-4

Dimension Operation and Test

Operate DIMENSION System and test paging as follows:

1.

Pick up handset.
Select the PAGE button or a free line button and listen for dial tone. Dial the

2.
paging access code (no second dial tone will be received).

Make your page by selecting from list below each active zone or All Call, and

3.
dialing the assigned dial code; ensure page is heard in the applicable
zone(s).

Service Manual

February 1984

Zone Selection

Zone

All Call

1
2
3

When page is completed, replace handset (hanging up receiver releases the

4.
PagePac VS).

Dial Code

1
4
5
6

Service Manual

February 1984

Talk-Back Test

Select any station with access to paging and page into each zone op­tioned for talk-back. Two-way communication between the telephone and the
zone loudspeaker(s) should be possible. Warning tones should occur as op-

tioned (Table 2-A).

System Operation and Test

Page 3-5

Caution:

Use talk-back control card with speakers and speaker wiring com­parable in quality with AT&T Information Systems products. Use of
poor quality components or unshielded wiring may result in inferior
talk-back performance.

FM Background Music Test

Select any station with access to paging into each zone. Background

music should be switched off in all zones during page and returned when
receiver at testing station is replaced.

Service Manual

February 1984

Overview

Trouble conditions originating outside of PagePac VS, such as shorted
wiring or AC power failure, should be located and cleared using normal
telephone repair procedures. A Dracon TS21 Lineman’s Test Set (or
equivalent) in the MONITOR mode, is an ideal tool to use for checking con­tinuity of the speaker and input wiring.

The PagePac VS and optional circuit cards do not require periodic
maintenance and are not field repairable. If a unit fails to function properly, it
should be returned to AT&T Information Systems for repair. For warranty and
nonwarranty service of this product, call the Service Number that is provided
for your Communications System.

Should a talk-back control card malfunction, the card may be removed
and the talk-back continuity card (P/N
J102 to restore one-way paging until the defective card can be replaced.

Maintenance

4.

22080-002) reinstalled in connector

Maintenance

Page 4-1

Refer to Table 4-A for a list of common troubles and possible causes and
solutions.

Maintenance

Page 4-2

Service Manual

February 1984

Table 4-A.

Trouble

Background music okay, Defective talk-back control card
music silenced when
seized, can’t page

Defective PagePac VS

Background music okay,
music not silenced when
seized, can't page

Page and music okay
but unable to use talk­back, or music okay,

music silenced when
seized, but talk-back
locked in listen mode

Background music and
page dead in all
zones

Defective PagePac VS Replace unit

Defective talk-back control card

Defective talk-back control card

Trouble Analysis

Possible Cause Possible Solution

Isolate faulty card
by substituting talk­back continuity card

Replace unit

Replace talk-back
control card

Isolate faulty card
by monitoring path

with test handset
and by substituting
talk-back continuity
card

Page okay but music
dead or distorted

Talk-back is inopera­tive in some or all
zones

Defective PagePac VS
Paging system power off

Defective FM tuner card

MON VOL control on FM tuner set
too high

Defective PagePac VS

Switch S2 improperly set
Defective talk-back control card

Replace unit
Check AC power source

Isolate fault by moni­toring 8

Ω terminals

on terminal block TB1
Adjust volume

Replace unit

Check switch S2
Replace talk-back

control card