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Issue 7
1 947221
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)