Valcom V-1222, V-1220 User Manual

Issue 7

DUAL INPUT

ONE-WAY AMPLIFIED INTERIOR SPEAKERS

INTRODUCTION

The V-1220 and V-1222 are dual Input
One-Way Amplified Speaker assemblies for use
with any one-way or handsfree page control
unit. These speakers are for interior use only.

These instructions contain the specifications and
information necessary to install, operate and
maintain the Dual Input One-Way Amplified
Interior Speakers.

SPECIFICATIONS

Applications

• One or Two-Way Page Controls

• Electronic Key System Page Ports (interface

adapter may be required)

• PABX Page Ports (interface adapter may be
required)

• Stand Alone Systems

• Existing 70V Paging Systems

• Background music systems

Features

• Self-contained dual input amplifier and
volume controls

• 8 inch cone type speaker

• Operates on -24VDC

• All speakers wired with 3 pair station cable

• Screw terminals for all connections

Dimensions/Weight

• V-1220 - Ceiling Speaker

13.0" Dia. X 3.0" D

(33cm Dia. X 7.6cm D)

3.8 lbs. (1.73 kg)

• V-1222 - Wall Speaker

10.6"H x 9.7"W x 5.2"D

(26.92cm H x 24.63cm W x 13.20cm D)

4.4 lbs. (2.0 kg)

Nominal Specifications

• Amplifier Input Impedance

1000 Ohms Nominal

• Amplifier Input Level -10dBm Nominal

• Amplifier Output 1 Watt into 45 Ohm

speaker load

V-1220 V-1222

Power Requirements

• Voltage -24VDC

• Current 50mA

Environment

• Temperature 0 to 50 Degrees C

• Humidity 0 - 85% non-precipitating

DESIGN

The Valcom Dual Input One-Way Amplified
Interior Speakers may be used to provide
one-way paging from one-way or talkback page
controls. The speakers provide a means for
connecting one speaker to two audio sources,
making it easy to provide features such as
background music, group call, or emergency
override. These speakers can also be used to
expand existing 70V paging systems. When
power and the appropriate input signal are
applied, voice page can be made.

Page Control Access

When using the One-Way Amplified Speakers
with a Page Control, the following equipment will
be required:

• Appropriate one-way speaker
assembly

• Page Control

• Power Supply sized to provide

power to operate the amplified
speaker assemblies and page
control. (See Figure 1 for Page
System Block Diagram)

1 947221

A

A

SECOND

A

A

UDIO

SOURCE

DUAL INPUT

PAGE

CONTROL

POWER

SUPPLY

FIGURE 1 - PAGE SYSTEM BLOCK DIAGRAM

ONE-WAY

MPLIFIED

SPEAKER

NOTE: When using Valcom Dual Input
One-Way Interior Speakers with a handsfree
page control, it is recommended that a V-1092
Volume Control be connected between the zone
output and the speaker input to lower the signal
level to the one-way speakers (to prevent
overdriving of inputs).

25V or 70V Paging Systems

When using the One-Way Amplified Speakers
with an existing 25 or 70V paging system, the
following equipment will be required:

• Appropriate one-way speaker
assembly

• Power supply sized to provide
power to operate the amplified
speaker assemblies

• V-1095 70 Volt Expander

Background Music

The Valcom Dual Input One-Way Amplified
Speakers may be used with a page control for
the purpose of providing background music on a
per zone basis along with one-way voice paging
(See Figure 2 for a Background Music Block
Diagram).

NOTE: When using the Dual Input One-Way
Amplified Speakers with background music and
a handsfree
recommended that a V-1094A Page Port
Preamp/Expander be connected between the
zone output and the speaker input to eliminate
backfeed of the background music to the
handsfree control unit.

MUS IC

SOURCE

page control unit, it is

Group Call

The Valcom Dual Input One-Way Amplified
Speakers may be used with a multi-zone page
control to provide simultaneous paging to a
group of zones. (See Figure 3 for a Group Call
Block Diagram).

ZONE 1

PAGE
CONTROL

ZONE 2

ZONE 8
(Group 1)

POWER
SUPPLY

FIGURE 3 - GROUP CALL BLOCK DIAGRAM

INPUT 1
INPUT 2

INPUT 1

INPUT 2

DUAL INPUT
ONE-WAY

MPLIFIED

SPEAKERS

NOTE: When using the Valcom Dual Input
One-Way Interior Speakers with a handsfree
page control, it is recommended that a V-1092
Volume Control be connected between the zone
output and the speaker input to lower the signal
level to the one-way speakers (to prevent
overdriving of inputs).

Speaker Cabling

All Valcom Dual Input Amplified One-Way
Interior Speakers require six conductor wire,
standard 22 or 24 gauge station wire is
acceptable. Shielded wire is not required or
recommended. Refer to Tables 1 and 2 when
planning a system.

Coverage

V-1220 - Ceiling Speaker: The area covered by
a ceiling speaker is determined by the height of
the ceiling. If the ceiling height is 8', the speaker
will cover approximately 250 sq. ft.; if 9 to 15',
the speaker will cover approximately 400 sq. ft.;
if 15 to 35' high, the speaker will cover
approximately 850 sq. ft.

V-1222 - Wall Speaker
an area up to 600 sq. ft. Wall Speakers should
be spaced 20 feet apart. Good quality paging
will be heard up to 30 feet in front of the
speaker.

: Wall speaker will cover

*

PAGE

CONTROL

FIGURE 2 – BACKGROUND MUSIC BLOCK
DIAGRAM

* The V-1094A is recommended when using
Handsfree Page Control

V-1094A

POWER
SUPPLY

DUAL INPUT

ONE-WAY

MPLIFIED

SPEAKER

2 947221