Valcom V-1072A-BRASS Installation Instructions page 2

V-1072A-BRASS,V-1072A-ST,V-1072B-BRASS,V-1072B-ST
These Talkback Door Speakers can be used with all Valcom Handsfree Talkback
Page Controls, Door Answering Units or any control with a 45 Ohm speaker
output. Four (4) screws are provided for mounting to a double-gang 4" x 4"
electrical box.
INSTALLATION
NOTES:
Connect using unshielded, twisted pair cable and limit runs to 800 feet
or less. Up to three (3) pair cable may be required when connecting to
the door speaker.
After making wire connections, cover uninsulated connections
with silicone tape, insulating putty or paint to prevent tracking.
1. Connect TIP and RING from the Valcom Page Control speaker output to
the speaker connections (marked TIP and RING) on the Door Speaker as
shown.
2. Connect CALL button on the Door Speaker to the customer provided
signal equipment as shown below. Switch is rated at 100mA maximum
current.
3. "B" Versions only - Connect the LED (lamp) on the Door Speaker to the
GND (+) and Switched Battery (-24VDC) terminals on the Valcom Page
Control as shown.
TROUBLESHOOTING CHART
PROBLEM
1. Check tip and ring for audio at speaker.
No sound in page
2. Check tip and ring at control unit.
mode
1. Check volume controls at page control.
Low volume in page
2. Check for open circuits in wiring.
mode
1. Check talkback volume controls at page control.
Poor listening in
Set control at minimum suitable listening level.
talkback mode
1. Check presence and polarity of LED input signal (V-
No LED indication
1072B models only).
CORRECTIVE ACTION
CONNECTIONS
Dimensions/Weight
4.50"H x 4.50"W x 1.30"D (11.43cm x 11.43cm x 3.30cm)
0.5 lbs. (.23 kg)
TECHNICAL ASSISTANCE
When trouble is reported, verify there are no broken connections to the unit.
Assistance in troubleshooting is available from the factory. When calling, you
should have a Volt-ohm meter and a lineman's test set available and be calling from
the job site. Call (540) 563-2000 and ask for Technical Assistance, or call (540) 767-
1555 for Valcom 24-hour Faxback System 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
your company name, address, phone number, contact person and the nature of the
problem. Send the unit to:
Repair and Return Dept.
5614 Hollins Road
Roanoke, VA 24019-5056
Valcom, Inc.