Valcom V-9928 Käyttöohje

Valcom Vastaanotin V-9928

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VSP-V- 9928

Issue 6

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V- 9928

5 WATT AMPLIFIER WITH VOLUME CONTROL

INTRODUCTION

These instructions contain the speciﬁcations and

information necessary to install, operate, and maintain

the V-9928, 5 Watt Ampliﬁer with Volume Control.

SPECIFICATIONS

Purpose

Provides up to 5 watt of audio power for one-way

voice paging.

Applications

Electronic key or PABX page port

Use for remote ampliﬁer

Capacity

The V-9928, 5 watt ampliﬁer with volume control,

will drive 6 (six) 45 Ohm speakers.

Dimensions/Weight

4.5"H x 2.75"W x 2.8"D

(11.43cm H x 6.99cm W x 7.11cm D)

0.8 lb. (.36 kg)

Power Requirements

Voltage Range: 21 to 26 Vdc signal battery – –

Idle Current: 8 mA

Operating Current: 267 mA

Nominal Speciﬁcations

Frequency response 80 Hz to 10,000 Hz + 3 dB

600 Ohm input

8 Ohm output

8 mA at 1000 Hz idle

267 mA at 1000 Hz operating

INSTALLATION

Mounting

Mount the V-9928 to any suitable surface using two

screws to fasten the box to the surface.

Audio and Power Connections

Standard twisted pair telephone cable.

a. Connect ampliﬁer input to terminals of the page

output terminals of the telephone system.

b. Connect ampliﬁer output terminals to speaker

leads.

c. Connect battery and ground terminals of V- 9928

to signal battery and signal ground respectively.

Refer to Figure 1 for connections.

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TECHNICAL ASSISTANCE

When trouble is reported, verify power is being

supplied to the unit and there are no broken

connections. Check voltages for proper polarity.

Refer to Table 1 for possible troubleshooting

solutions.

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) 427-3900 and ask for Technical Support,

or call (540) 427-6000 for Valcom 24-hour

Automated 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

PAGE

CONTROL

V-9928

POWER SUPPLY

INPUT

OUTPUT

FIGURE 1 - CONNECTIONS

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TABLE 1 - TROUBLESHOOTING CHART

Problem

Possible Solution

No Sound

1. Check that volume control is turned up.

2. Check presence of 24 Vdc and GND. –

3. Using a lineman's test set, check for the proper audio level on T&R

leads, and if necessary also at the source.

Low Volume

1. Check that volume control is turned up.

2. Check voltage at the V-9928 when in use, -18 to -24 volts required.

3. Using a lineman's test set, check for the proper audio level on the T&R

leads. It is possible that some low intensity sound will be heard with

only one side of Tip and Ring connected.

Loud Squeal

(feedback)

1. Lower volume of speaker.

2. Aim horn in diﬀerent direction.

3. Move horn to location further from phone.

4. Install conﬁdencer on phone 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. 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

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

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

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

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: In Canada

Valcom, Inc. X Corporation CM

1111 Industry Avenue 35 Van Kirk Drive #11 and 12

Roanoke, VA 24013 Brampton, Ontario L7A1A5

Phone: (540) 427- Phone: (905) 456- 3900 1072

FAX: (540) 427- FAX: (905) 456-3517 2269

Tuotetiedot

Merkki:	Valcom
Kategoria:	Vastaanotin
Malli:	V-9928

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