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947291
INSTALLATION
Remove the metal mounting plate from the rear
of the V-2900 enclosure. Using two #6 3/4"
wood screws, mount the plate in a vacant space
on the backboard with the telephone system
common equipment.
Both mounting holes
must be utilized to insure secure mounting of
the unit.
See Figure A.
Open the V-2900 enclosure to access
connections and option switches. Slide the rear
of the unit (contains the board) onto the
mounting plate and lock in place with screw
provided. Make connections.
Connections
1.
Connect Tip and Ring of the C.O. Line
Port from a PABX, key system or single
line phone to screw terminals labeled
Tip and Ring on the V-2900.
2.
Connect –24 Vdc ("-" terminal) from the
power supply to screw terminal on
V-2900 labeled –24 Vdc.
3.
Connect GND ("+" terminal) from the
power supply to upper screw terminal on
V-2900 labeled GROUND.
4.
Connect talkback speaker Tip and Ring
to screw terminals labeled SPKR on
the V-2900.
5.
Connect door pushbutton connections
(momentary closure) to the second
screw terminal labeled GROUND and
SPKR SW on the V-2900. (See Figure
2).
6.
Replace cover and lock in place using
the #6 1/2" screw included with the unit.
Volume Controls
Two volume controls are used to adjust the
phone to speaker volume and speaker to phone
volume. (See Figure 2 for location).
OPERATION
The V-2900 is a single talkpath unit which allows
an individual at a external location to converse
with another individual inside a building. When
the V-2900 is used with a door plate speaker,
pressing the pushbutton on the door plate
speaker will cause the phone to ring within the
building (1 second on, 4 seconds off). By
answering the call, the system user can
converse with the person at the door. Similarly,
the person at the telephone location may access
the door speaker by dialing the access code or
pressing the line button corresponding with the
loop start trunk port or C. O. Line position of the
PABX or E-Key system that the V-2900 is
connected to. (In the case of a dedicated single
line telephone, simply going off-hook will access
the door speaker).
NOTE: Operation is the same when used with a
dedicated single line telephone, loop start trunk
port of a PABX, or C. O. Line position of an E-
Key system
.
TECHNICAL ASSISTANCE
Assistance in troubleshooting is available from
the factory. When calling, you should have a
VOM and a test set available and be calling from
the job site. Call (540) 563-2000 and and press
1 for Technical Support or visit our website at
http://www.valcom.com.
Valcom equipment is not field repairable.
Valcom, Inc. maintains service facilities in
Roanoke, VA. Should repairs be necessary,
attach a tag to the unit clearly stating company
name, address, phone number, contact person,
and the nature of the problem. Send the unit to:
Valcom, Inc.
Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
E-KEY
C.O.LINE
POSITION
V-2900
DOOR
ANSWERING
UNIT
DOOR PLATE
SPEAKER
PUSHBUTTON
-24VDC
POWER
SUPPLY
FIGURE 1 - SIMPLIFIED BLOCK DIAGRAM