Valcom Supervised Ceiling Speaker with Amplifier Installation Instructions Manual

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INSTALLATION INSTRUCTIONS FOR

SUPERVISED CEILING SPEAKER WITH AMPLIFIER

Valcom Supervised Ceiling Speaker, VLSCS, is self-amplified and capable of reproducing voice paging as well as
background music. The VLSCS features a removable volume control knob or volume can be adjusted by a
screwdriver through the center hole on the grille. Input and output connections on the amplifier allow easy chaining
of speakers. The unit requires -24 Vdc, 50 mA (1 power unit).

Volume Control

(Knob included with VLSCS)

Page
Out

Valcom Page
Control

(Tip/A)

(Ring/B)

(-24Vdc)

(Gnd)

One-Way
Amplified
Speaker

NOTE: Do not connect this speaker directly to
a 25/70/100 volt amplifier as damage to both the
amplifier and speaker may occur. A V-1095
may be used to allow the use of Valcom
self-amplified speakers on 70V speaker lines.

Valcom -24 Vdc
Power Supply

TYPICAL CONNECTIONS

Phone: [phone] 947001

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FIGURE 2: VLSCS INSTALLATION INSTRUCTIONS

V-9915M-5 Backbox

Bend tabs down to
locate bridge in
ceiling tile
cutout.

V-9914M-5 Bridge

Attach backbox to
bridge with 4 screws
provided

Cut 8.5" round
hole in ceiling tile

8" Ceiling Grille
and Speaker

(4 white screws
provided)

Ther V-9914M-5 is recommended for use where extra speaker support is needed. A V-9915M-5
may be added for backbox protection. A V-9916M (bridge/backbox combination) is also available.

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COVERAGE

The area covered by a ceiling speaker is determined
by the height of the ceiling. If ceiling height is 8',
the speaker will cover 256 sq. ft. With a ceiling
height of 10 feet, the speaker will cover 400 sq. ft. If
the ceiling is 20 feet high, the speaker will cover
1600 sq. ft.

Table 1 - Number of Speakers per Audio Run

Wire Run(Ft.) 22 AWG 24 AWG

100
200
400
800

1600

SYMPTOM ACTION

150
150
100

50
25

150
120

60
30
15

TROUBLESHOOTING CHART

TECHNICAL ASSISTANCE

When trouble is reported, verify there are no broken
connections. Assistance in troubleshooting is
available from the factory. Call [phone] and
ask for Technical Support or call [phone] for
Valcom 24- hour Automated Support.

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 nature of the problem.
Send the unit to:

Valcom, Inc.

Repair & Return Dept.

5614 Hollins Road

Roanoke, VA 24019-5056

1. No audio from speaker.

2. Low volume from speaker.

3. Loud squeal (feedback).

1a. Check that volume control is turned up (clockwise).
1b. 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.

2a. Check that volume control is turned up.
2b. Check voltage at the speaker assembly when in use, -18 to -24VDC required.
2c. Using a lineman's test set, check for the proper audio level on Tip and Ring leads. It is

possible that some low level audio will be heard with only one side of Tip and Ring
connected.

3a. Turn down (counter-clockwise) volume of the speaker.
3b. Increase the distance between the telephone and speaker.
3c. Install a noise canceling handset on the telephone in severe problem areas.
3d. Add a V-9962 Digital Feedback Eliminator.

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. inspection by Valcom, Inc. indicates the validity of the claim,

2. the defect is not the result of damage, misuse, or negligence after the original shipment.

3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened (A service

4. freight charges for the return of products to Valcom are prepaid,

5. all units ‘out of warranty’ are subject to a service charge. The service charge will cover minor repairs (Major repairs will

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.

charge plus parts and labor will be applied to units defaced or physically damaged),

be subject to additional charges for parts and labor).

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: In Canada

Valcom, Inc. CMX Corporation

1111 Industry Avenue 35 Van Kirk Drive #11 and 12

Roanoke, VA 24013 Brampton, Ontario L7A1A5

Phone: [phone] Phone: [phone]

FAX: [phone] FAX: [phone]

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