Louroe Electronics Verifact DVGC Manuale utente

IMPORTANT NOTICE

When this equipment is used as part of an

audio monitoring system, the law requires

that the public be given notice of AUDIO

MONITORING ON THE PREMISES. A

decal notice is included with each

microphone shipped.

Federal Law References:

Federal Regulations, US Code, Title 18.

Crime and Criminal Procedure, Sec 2510.

AUDIO

MONITORING

These Premises

The Verifact DVGC is an omni-directional, low

impedance, electret condenser microphone with built-in

preamp and automatic gain control. It can pick up

normal sounds approximately 25 ft. away, or within a 50

ft. diameter circle. It’s built-in limiter prevents the output

signal to be overdriven thus minimizing distortion.

Verifact D-V-AGC produces line level output (0 dB)

and can be located up to 1,000’ from the Louroe base

station. The microphone has a potentiometer to adjust

the output gain up to +10dB. It is primarily designed for

flush mounting to a wall. It has 16 Ga stainless steel

face plate and hooded audio port for providing

protection to the microphone. Fits into a standard single

gang electrical box (not included). The Verifact DVGC

is compatible with all Louroe Audio Base Stations or

Louroe Audio Interface Adapters.

PAGE 1 OF 4

VERIFACT DVGC

FRONT BACK

DESCRIPTION

SPECIFICATIONS

VERIFACT DVGC

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: (818)994-6498 / FAX: (818)994-6458

/ www.louroe.com[email protected]

DVgc_mic-inst_12/14

Microphone Sensitivity

Frequency response

Output

Current drain

-45dB

50 Hz to 8 kHz

10 mA

Supply voltage 12 Vdc

Microphone housing 16Ga Stainless steel face plate

Dimensions

Output gain

Weight

Shipping Weight

4” "dia x 1 ½ H

+10dB

4 oz

1 lb

Line Level (0 dB, 1kWat 1 Khz )

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: [email protected]

(818)

WARRANTY

LOUROE ELECTRONICS warrants that at the time of shipment products manufactured by LOUROE ELECTRONICS to be free of defects in material and workmanship.

Should a defect appear within one year (12 months) from date of shipment, LOUROE ELECTRONICS will, at its sole discretion, repair or replace the defective equipment.

This equipment shall not be accepted for repair or return without prior notification by LOUROE ELECTRONICS .

This warranty does not extend to any Louroe product that has been subjected to improper or incorrect installation, misuse, accident, or in violation of installation

instructions provided by LOUROE ELECTRONICS.

Returned shipments to LOUROE ELECTRONICS shall be at customer’s expense. LOUROE ELECTRONICS will return the equipment prepaid via best way.

MICROPHONE CONNECTION:

If using West Penn 452 or equivalent with same color code, connect:

1. Red wire (12 Vdc) connects to terminal A of microphone terminal block

2. Black wire (audio out) connects to terminal B of microphone terminal block

3. Bare wire (ground) connects to terminal C of microphone terminal block

INSTALLATION TIP: If area to be monitored for audio is noisy or has background disturbances, the

microphone should be positioned close to the subject (4’ - 8’) if possible. Also, the microphone output can be

lowered by adjusting the gain control potentiometer. Rotating clockwise will increase the gain;

counterclockwise decreases the gain. The factory setting is 0dB output.

MECHANICAL INSTALLATION

A represents +12 Vdc Power

B represents Audio Output

C represents Ground

A 3-pin terminal block is located on the back of the microphone housing, marked A, B, C.

CONNECTING VERIFACT DVGC MICROPHONE TO A LOUROE BASE STATION OR AUDIO

INTERFACE ADAPTER

CONNECTING VERIFACT DVGC MICROPHONE TO OTHER AUDIO DEVICES.

If a Louroe audio base station is not used and microphone is being connected directly to another receiver from

other manufacturers, 12 Vdc power must be applied to terminals A and C. (A is positive, C is negative).

Terminals B and C of microphone (C is common) go to the “Audio In” or “Line in” of the audio source. We

recommend shielded cable connections for terminal B and C (See last page for interconnection diagram)

INSTALLATION TIPS

1. Use 2 Cond 22AWG overall shielded audio cable only. West Penn 452, Belden 8451 or equivalent.

UNSHIELDED CABLE IS NOT SATISFACTORY FOR SOUND SYSTEMS.

2. When used at a cash register checkout, microphone should be installed closer to the customer rather than the cash

area to be monitored and documented.

3. Avoid installing microphone near air vents, air conditioners, fans and other equipment that generate

high sound and air pressure.

4. If microphone is installed in a police interview room, room should be conditioned with any type of carpeting, acoustical

ceiling tiles, acoustical foam, etc. to reduce echo. This will enhance the quality of live and recorded audio.

5. The APR-1 and microphone should have a barrier or solid wall between them in order to avoid audio

feedback, especially when they are in close proximity to each other. If no barrier, microphone should be at least 25’

from APR-1 to avoid acoustical feedback.

The Verifact DVGC is design to be installed in a single gang electrical box for flush or surface mounting to a

wall or ceiling. It should be positioned 3 to 6 ft from the area of desired coverage. Ceiling heights in excess of

10 ft should be avoided.

All Louroe audio base stations and Interface Adapters have corresponding terminal blocks marked A, B, C.

Connect other end of cable as follows:

1. Red wire from microphone connects to pin A of Base Station (12Vdc)

2. Black wire from microphone connects to pin B of Base Station (Audio Output)

3. Bare wire from microphone connects to pin C of Base Station (Ground)

INSTALLATION AND OPERATING INSTRUCTIONS

Page 2 of 4

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: [email protected]

(818)

DVgc_mic-inst_12/14

TO LOUROE BASE STATION

TO OTHER LOUROE AUDIO INTERFACE DEVICES

(IF-1, IF-2, IF-4, IF-8 ETC.)

INSTALLATION AND OPERATING INSTRUCTIONS

Page 3 of 4

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: [email protected]

(818)

BARE

BLACK

RED

ABC

BLACK BARE

RED

A = +12Vdc (RED)

B = Audio (BLACK)

C = Ground (BARE)

2 Conductor shielded cable, 22

gauge with a 24 gauge drain

wire.

NOTE: Unshielded cable is not

satisfactory for audio

systems.

WIRING REQUIREMENTS

MICROPHONE GAIN ADJUSTMENT

The microphone has an audio output gain potentiometer.

Microphone is always shipped with a 0dB output. If it’s necessary

to change the gain of the microphone, insert a small screwdriver

into the potentiometer rotate clockwise to increase or

counterclockwise to decrease. Maximum gain is +10dB

DVgc_mic-inst_12/14

Page 4 of 4

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458

website: www.louroe.com e-mail: [email protected]

(818)

CONNECTING A LOUROE MICROPHONE DIRECTLY

TO AN IP CAMERA, ENCODER OR DVR WITH 3.5mm

MONO AUDIO INPUT

LOOP “C” WIRE THRU OPENING, THEN SOLDER

“B” WIRE

3.5mm MONO PLUG REMOVED

FROM JACKET

TO LINE LEVEL INPUT OF IP CAMERA OR

DVR WITH 3.5mm MONO AUDIO INPUT

MICROPHONE TERMINAL BLOCK

12 Vdc POWER SUPPLY

A = 12Vdc Power

B = Audio Output

C = Ground

+12 Vdc

GROUND

Audio In

of receiver

3.5mm Stereo CONNECTION RCA CONNECTION

Red Wire

Black Wire

Red Wire

Audio In

of receiver

OTHER PLUGS WIRING CONFIGURATION

INSTALLATION AND OPERATING INSTRUCTIONS

DVgc_mic-inst_12/14

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