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Equipment Requirements
A system using the V-9945A will consist of the
following:
Access equipment (See Design Section)
-24VDC power supply (Included with horn)
INSTALLATION
General
These instructions cover only the installation
procedure for the Valcom V-9945A. Please consult
practices for other equipment if any other equipment
is being used.
TELEPHONE SYSTEM
NIGHT RING
CONTACT
CLOSURE
TIME CLOCK
CONTACT
CLOSURE
FIGURE 1 - TYPICAL INSTALLATION
Precautions
All precautions have been taken at the factory to
insure that the equipment functions properly. To
insure proper operation and to prevent equipment
damage, please observe the following:
Unplug the power supply before making any
connections to the unit.
Do not apply power to the unit until all
connections have been double-checked.
Attaching Speaker to Base
NOTE: For ease of installation, the base can be
attached to the speaker before or after the base is
mounted.
Loosen position adjustment knob.
Insert the ball of the base into the socket of
the speaker.
Tighten the position adjustment knob.
Mounting
The V-9945A should be mounted 12 feet to 25 feet
high in the area requiring signaling. The unit can be
mounted to a wall, a beam or an electrical box.
Mount the base to a wall using the two holes
RED
GREEN
BROWN
V-9945A
WHITE
BLACK
-24VDC
POWER SUPPLY
2
provided. Knockout holes are provided for
punch out should additional holes be
desired.
A "C" clamp is provided with the ringer to
allow mounting to a beam. Place the bolt
through the hole in the bottom of the base to
secure the "C" clamp to the beam. (See
Figure 2).
Connection to an electrical backbox is
accomplished by channeling wire through
the ball of the base (See Figure 3) and
making appropriate connections. The base
has holes punched for a double-gang square
box, but by punching out additional
knockout holes, the base can be mounted to
a single-gang or octagon box.
The V-9945A may be rotated or moved up and down
to obtain the desired position by loosening the knob
(See Figures 2 and 3) at the bottom of the unit
approximately 1 turn. Make required adjustment and
re-tighten knob.
Lead Designations
Black Ground (+)
White
Red
Green
Brown
Connections
Connections should be accomplished using twisted
pair telephone wire. The power supply should be
located within 500 feet of the horn.
Connect negative (-)(-24VDC) lead of the
power supply to the white lead; connect
positive (+)(Gnd) lead of the power supply to
the black lead.
For warble tone access, connect contact
closure between red and green.
For single tone access, connect contact
closure between brown and green.
Connections for both single tone and warble tones
may be made to the same speaker.
-24VDC
Warble tone access
Common
Single tone access
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