4
947221
Volume Control
Input 1
Input 2
Power
Input 1
Screw Connection Location
Designations - Figure
MUSIC
SOURCE
POWER
SUPPLY
PAGE
CONTROL
DUAL INPUT
CEILING SPEAKER
INPUT 2
POWER
INPUT 1
FIGURE 5
25V or 70V Paging Systems
The Dual Input One-Way Amplified Speakers may be
used to expand an existing 25V or 70V paging system
without placing an additional load on the amplifier by
connecting one input of the speaker directly to the 8
ohm output of one of the existing 70 volt transformers
tapped at 1/4 watt. A power supply will also be
required.
Background Music
The Valcom Dual Input One-Way Amplified Speaker
may be used for providing background music on a per
zone basis along with one-way voice paging. The
music source is connected to Input 2 Tip and Ring.
The page zone output is connected to Input 1 Tip and
Ring.
NOTE: When using the Dual Input One-Way
Amplified Interior Speakers with background music
and a handsfree page control unit, it is 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.
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.
When it is used for group call, Input 1 is connected to
an assigned zone number. Input 2 is connected to the
zone number that will be used for the group call page.
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).
See Tables 1 and 2 for wiring specifications for these
speaker assemblies.
Mounting
V-1220 - Ceiling Speaker: To install speaker
assembly, measure and cut an 8-1/2" hole in center of
ceiling tile. (If using a V-9914M-5 bridge,
V-9915M-5 backbox, or V-9916M bridge and
backbox, follow instructions supplied with these
assemblies).
Connect station or other suitable wire to proper
speaker terminals as labeled. Mount speaker to
ceiling tile. Ideal mounting height should be between
7 and 23 feet.
V-1222 - Wall Speaker: Unscrew the speaker bracket
and mount the bracket to the wall (ideal mounting
height is 8 to 12 feet above floor level). Connect
station or other suitable wire to proper speaker
terminals as labeled. Mount speaker on bracket.
V-1224 - Corner Speaker: Connect station or other
suitable wire to proper speaker terminals as labeled.
Drive a finishing nail into desired corner and hang the
speaker on the nail. Ideal mounting height is 8 to 12
feet above floor level.
V-1226 - Corridor Speaker: Select a suitable location
giving adequate consideration to the weight of the
unit. Be sure unit is positioned high enough to
provide clearance for persons passing by.
Unscrew mounting bracket and mount to wall. After
making the required connections, reattach the speaker
to the mounting bracket.
