Valcom V-1011BB, V-1011MR, V-1012MR, V-1012BB Service Manual

V-1011 / V-1012
4" AMPLIFIED RECESSED CEILING SPEAKERS
8" AMPLIFIED RECESSED CEILING SPEAKERS

INTRODUCTION

These instructions contain the specifications and guidelines
necessary to install, operate and maintain the Amplified
Recessed Ceiling Speakers. Specifications and installation
information for the mounting rings and backboxes used with
these speakers is also included in this document.

These speakers are for use with any Valcom page control and
are for interior use only.

SPECIFICATIONS

Applications

These Amplified Recessed Ceiling Speakers are used to
provide one-way paging when used with a low level audio
input.

• Valcom Paging Adapters

• 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

Issue 6

Dimensions/Weights

• V-1011MR - 4" Recessed Ceiling Speaker w/Mounting
Ring

7.8” Dia x 5.0”D (19.81cm Dia. x 12.7cm D)

2.4 lbs. (1.09 kg)

• V-1012BB - 8" Recessed Ceiling Speaker w/Backbox

11.75” Dia x 6.0”D
(29.85cm Dia. x 15.24cm D)

6.3 lbs. (2.86 kg)

Features

• Self-contained amplifier and volume control

• Operates on -24VDC

• Screw terminals for all connections

• Grille simulates recessed lighting fixture

• No visible mounting hardware due to concealed mounting

studs for the speaker and torsion springs

Nominal Specifications

• Amplifier Input Impedance 600 Ohm nominal

• Amplifier Input Level -10dBm nominal

• Amplifier Output 1 Watt into 45 Ohm

speaker load

Power Requirements

Voltage -24VDC
Current 50mA

Environment

Temperature 0 to 50° C
Humidity 0 to 85% non-precipitating

SYSTEM DESIGN

General

Valcom Amplified Recessed Ceiling Speakers may be used to
provide one-way paging from any Valcom one-way or talkback
page control. The speakers can also be used to expand
existing 70V paging systems. When power and appropriate
input signal are applied, a voice page can be made.

Page Control Access

(See Figure 1)
When using the Amplified Recessed Ceiling Speakers with a
Valcom page control, the following equipment will be required:

• Appropriate one-way speaker assembly

• Valcom page control

• Valcom power supply sized to provide power to operate

the amplified speaker assemblies and page control

NOTE: When using the Valcom one-way interior
speakers with a Valcom handsfree page control, it is
recommended that a V-1092 Volume Control be
connected between the zone output and the speaker

input.

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25V or 70V Paging Systems

(

See Figure 2)
When using the Amplified Recessed Ceiling Speakers with an
existing 25 or 70V paging system, the following equipment will
be required:

• Appropriate one-way speaker assembly

• Valcom power supply sized to provide power to operate

the amplified speaker assemblies

• Valcom V-1095 70 Volt Expander

Special Applications

The Tip and Ring input of the amplified speaker may be
connected directly to the speaker in most electronic key
telephones to amplify the level of the speaker. A power
supply is also required.

Speaker Cabling

All Valcom amplified one-way interior speakers require 2 pairs
to operate. Standard telephone station cable may be used.
Existing telephone wire and feeder cables may also be used.
Refer to the following tables when planning an installation.

• Audio Pair: The number of speakers looped on the audio

pair is not critical unless you have a very large job. Table
1 gives guidelines for the number of speakers per audio
run.

Table 1 - Number of Speakers per Audio Run

Wire Run (Ft) 22 AWG 24 AWG

100 150 120
200 150 120
400 100 60
800 50 30

1600 25 15

• Power Pair: The cable runs specified in Table 2 are very

important and must be followed for proper operation of
the one-way paging speakers.

Table 2 - Number of Speakers per Power Run
(22 AWG)

Wire Run (Ft) 1 Watt Inside Speakers

100 60
200 30
400 15
800 7

1600 3

Coverage

The area covered by Valcom Recessed Ceiling Speakers is
determined by the height of the ceiling. If the ceiling height is
8', the speaker will cover 250 sq. ft. If the ceiling is 20 feet
high, the speaker will cover 1000 sq. ft.

INSTALLATION

Typical connections to a Valcom Page Adapter (refer to Figure

1)

• Connect screw terminal marked Tip to the tip side of the

desired speaker output of the page control.

• Connect screw terminal marked Ring to the ring side of

the desired speaker output of the page control.

• Connect -24VDC "B" battery (may be referred to as "-" or
"signal battery") from power supply to screw terminal
marked -24VDC on the speaker.

NOTE: "A" battery may be substituted for "B" battery
connections.

Connecting arrangement to 25 or 70V paging systems (refer
to Figure 2)

• Connect 25 or 70 V paging system to V-1095 as shown in
V-1095 instructions.

• Connect one output of the V-1094A to screw terminal
marked Tip on the Valcom amplified speaker.

• Connect the other output of the V-1094A to screw
terminal marked Ring on the Valcom amplified speaker.

• Connect -24VDC "B" battery (may be referred to as "-" or
"signal battery") from power supply to screw terminal
marked -24VDC on the speaker.

• Connect -24VDC Ground ("B" ground, "+", or "signal"
ground) to screw terminal marked GND on the speaker.

NOTE: "A" battery may be substituted for "B" battery
connections.

Mounting - General

Mounting of the Amplified Recessed Speakers is
accomplished utilizing a mounting ring or backbox. The
V-1012BB is equipped with a backbox and support rails, while
the V-1011MR is supplied with a mounting ring and support
rails. See Figures 3 and 4.
Mounting Rings and Backboxes:

• Provide support to prevent ceiling tile from sagging from
the weight of the speaker

• Provide receptacles for torsion spring installation

• Mounting rings are constructed of 20 gauge cold rolled

steel with a rust preventative coating

• Backboxes are constructed of 22 gauge cold rolled steel,
undercoated to prevent mechanical and acoustical
resonance and finished in a rust preventative coating

• Backboxes meet most local fire codes for use in air
plenum return ceilings

• Backboxes provide acoustic enclosure behind the
speaker for improved sound quality

• Rails are used with both the mounting rings and the
backboxes and are finished in a galvanized coating

Mounting Procedure

• Determine desired speaker location. The speaker should
be located in the center of the ceiling tile

• Use the mounting ring or backbox as a template, cut a
hole in the tile -

- 6 1/2" diameter hole for the 4" speaker

- 10" diameter hole for the 8" speaker

• If the backbox is to be used, run the cable through one of
the four knockouts on the
to the speaker.

• Place the backbox or mounting ring above the ceiling tile.
Place speaker through the tile. Compress springs into
the slots provided in the backbox or mounting rings.
Press speaker to the tile. The torsion springs should pull
the speaker to the tile.

backbox and connect the wires

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