Valcom Speaker V 1220 User Manual

Issue 7  
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.  
V-1220  
V-1222  
SPECIFICATIONS  
Power Requirements  
Voltage  
Current  
-24VDC  
50mA  
Applications  
One or Two-Way Page Controls  
Electronic Key System Page Ports (interface  
adapter may be required)  
Environment  
Temperature  
Humidity  
0 to 50 Degrees C  
PABX Page Ports (interface adapter may be  
required)  
0 - 85% non-precipitating  
Stand Alone Systems  
Existing 70V Paging Systems  
Background music systems  
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.  
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)  
Page Control Access  
When using the One-Way Amplified Speakers  
with a Page Control, the following equipment will  
be required:  
V-1222 - Wall Speaker  
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)  
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  
Amplifier Output  
-10dBm Nominal  
1 Watt into 45 Ohm  
speaker load  
1
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DUAL INPUT  
CEILING SPEAKER  
Table 1  
# of Speakers per Audio Run  
MUSIC  
SOURCE  
Wire Run in Feet  
# of Speakers  
INPUT 2  
100  
200  
400  
800  
1600  
150  
150  
100  
50  
POWER  
SUPPLY  
POWER  
INPUT 1  
25  
PAGE  
CONTROL  
Table 2  
# of Speakers per Power  
Wire Run in Feet  
# of Speakers  
FIGURE 5  
(22 AWG)  
100  
200  
400  
800  
1600  
30  
30  
15  
7
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.  
3
INSTALLATION  
Page Control Access  
The Valcom Dual Input One-Way Amplified  
Interior Speakers provides a means for  
connecting one speaker to two audio sources.  
A standard paging system is made up of 3 basic  
components:  
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.  
Appropriate one-way speaker assembly  
Page Control  
Power Supply sized to provide power to  
operate the amplified speaker  
assemblies and page control  
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.  
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).  
Group Call  
See Figure 4 for Screw Connection Location  
and Designations. See Figure 5 for the required  
connections when using the Dual Input  
One-Way Amplified Interior Speakers with a  
page control.  
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.  
Input 2  
Power  
Input 1  
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).  
Volume Control  
Input 1  
Screw Connection Location and  
Designations - Figure 4  
See Tables 1 and 2 for wiring specifications for  
these speaker assemblies.  
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Mounting  
TECHNICAL ASSISTANCE  
When trouble is reported, verify there are no  
broken connections. Assistance in  
troubleshooting is available from the factory.  
Call (540) 563-2000 and ask for Technical  
Support, or visit our website at  
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.  
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:  
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.  
Valcom, Inc.  
Repair and Return Dept.  
5614 Hollins Road  
Roanoke, VA 24019-5056  
TABLE 3  
TROUBLESHOOTING CHART  
PROBLEM  
CORRECTIVE ACTION  
1. No audio from speaker.  
1. Make certain volume control is turned up (clockwise).  
2. Check presence of -24VDC and GND.  
3. Using a lineman's test set, check for the proper audio level on  
the Tip and Ring leads, and if necessary also at the source.  
2. Low volume from speaker.  
3. Loud squeal (feedback)  
1. Make certain volume control is turned up.  
2. Check voltage at the speaker assembly when in use, -18 to  
-24VDC required.  
3. Using a lineman's test set, check for the proper audio level on  
the Tip and Ring leads. It is possible that some low level audio  
will be heard with only one side of Tip and Ring connected.  
1. Turn down volume (counter clockwise) of speaker.  
2. Increase the distance between the telephone and speaker.  
3. Install a confidencer on the telephone in severe problem areas.  
VALCOM LIMITED WARRANTY  
Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and service for a period of  
one year from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or refund of any such defective  
device within the warranty period, provided that:  
1.  
2.  
3.  
inspection by Valcom, Inc. indicates the validity of the claim,  
the defect is not the result of damage, misuse, or negligence after the original shipment.  
the product has not been altered in any way or repaired by others and that factory sealed units are unopened (A service charge plus parts  
and labor will be applied to units defaced or physically damaged),  
4.  
5.  
freight charges for the return of products to Valcom are prepaid,  
all units ‘out of warranty’ are subject to a service charge. The service charge will cover minor repairs (Major repairs will be subject to  
additional charges for parts and labor).  
This warranty is in lieu of and excludes all other warranties, expressed or implied, and in no event shall Valcom, Inc. be liable for any  
anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection with the purchase, operation,  
or use of the product.  
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the carrier should be  
notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the F.O.B. point.  
Headquarters:  
Valcom, Inc.  
5614 Hollins Road  
Roanoke, VA 24019-5056  
Phone: (540) 563-2000  
FAX: (540) 362-9800  
4
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