Louroe ASK-4 304 Installation And Operating Instructions Manual

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6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: [phone] / FAX: [phone]

/ [e-mail]

INSTALLATION AND OPERATING INSTRUCTIONS

DESCRIPTION

®

ASK-4 #304 is a four zone audio monitoring system
designed for direct connection to a DVR, PC soundcard or
IP Network Camera. Model IF-4 Interface Adapter (usually
mounted near the recording device) receives the wiring from
the Verifact™ A Microphone, supplies power and drives the
audio signals into the DVR, IP Network Camera, Video
Server or PC Soundcard.

Distance between the Verifact A Microphone and Model IF-

®

4 Interface Adapter may be up to 1,000 ft.(305m) using
recommended wiring. Each output of the IF-4 has an audio
level control to increase or decrease the level of audio output
going to the receiving device.

AD-1 POWER SUPPLY

KIT CONTENTS

4 VERIFACT Model A Microphones
Model IF-4 Audio Interface Adapter
Model AD-1 12Vdc power supply
Patch cables for connection to the audio inputs of
DVR’s, IP Network Cameras, Soundcards, etc. as listed
above (RCA to RCA and RCA to 3.5mm Mono adaptors)

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ASK-4

#304

AUDIO MONITORING SYSTEM

IF-4 AUDIO INTERFACE ADAPTER

(4) VERIFACT A

MICROPHONES

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AD-1 POWER SUPPLY

WIRING CONNECTIONS

MICROPHONE CONNECTIONS

Located at the bottom of the Verifact A microphone is a 3-pin terminal block marked A, B, and C.

A = 12Vdc power
B = Audio output of microphone
C = Ground

If using the recommended wiring (West Penn 452), connect as follows;

Red wire goes to terminal A of microphone
Black wire goes to terminal B of microphone
Bare wire goes to terminal C of microphone

After all microphones have been connected, bring the other end of the cable to the IF-4 location and connect each
microphone to the corresponding terminal block of the unit matching A to A, B to B, and C to C. Be sure to properly match
wire colors. If using cable from other manufacturers, color code may vary.

CONNECTIONS BETWEEN IF-4 AND DVR (OR OTHER AUDIO RECEIVING DEVICE)

Connect the RCA outputs of the IF-4 to the corresponding audio inputs of the receiving device. RCA and RCA to 3.5mm
mono cables are included in the kit.

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WIRING REQUIREMENTS

2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire

West Penn 452 or equivalent

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

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

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APPLYING POWER TO THE IF-4

Included with the IF-4 is a power supply (120V/12Vdc). Connect the small end of the 90° female plug

into the 12Vdc jack, located on the input side. Then connect the two-prong large end into a standard
110/120V electrical outlet.

Turn ON/OFF power switch, located behind green power LED to ON position. The green LED will

illuminate, indicating power to the system. The system will now provide audio to the DVR, Soundcard
Module, IP Network Camera, etc.

AUDIO LEVEL ADJUSTMENT

Located on the input side are potentiometers (round, with adjustment arrow) for each microphone.
This is for adjusting the audio gain and to prevent overdriving or underdriving the audio signal.

The adjustment arrows are shipped in the straight-up position. Turn slowly counterclockwise to lower
the gain, and clockwise to increase. This will provide the desired level of audio signal into the Audio
Receiving Device (DVR, Soundcard Module, etc.). A full turn clockwise increases the gain to 10dB. A
full turn counterclockwise will decrease the gain -30dB.

AUDIO TEST SWITCH

The purpose of this switch is to indicate the presence of audio and to assure the user that the IF-4 is
driving the audio signals into the audio input of receiving device (DVR, IP Network Camera, Video
Server, Soundcard module, etc.)

INSTALLATION AND OPERATING INSTRUCTIONS

Located on the audio output side of IF-4 is a DIP switch labeled Audio Test Switch. To the left of the
switch is a red LED marked Audio Indicator.

For testing:

1) Select a zone that has a microphone connected to the microphone terminal block.
IF-4 utilizes pins 1-4.

2) Push pin to the ON position. The red LED will illuminate, indicating audio is present.
With short bursts of audio, the LED will flicker and with continuous flow of audio LED
illumination is constant. Only one microphone can be tested at a time

NOTE: When testing is complete, all pins of the DIP switch must be in

the OFF (down) position.

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

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

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INSTALLATION AND OPERATING INSTRUCTIONS

INTERCONNECTION DIAGRAM

FOR

CONNECTING LOUROE VERIFACT MICROPHONES

TO A DVR WITH MULTIPLE AUDIO INPUTS USING

LOUROE MODEL IF-4 AUDIO INTERFACE ADAPTER

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Verifact A Microphone shown as an example

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with IF-4 Interface Adapter

VE RIF ACT A

All Louroe microphones

VERIFACT A, B, C, D, D-V, E, K, L-DT

A B C

N

L

®

VE RIF ACT A

A B C

N

L

are compatible with Louroe IF-2,

IF-4 and IF-8 Audio Interface Adapters

Audio Indicator Light

Audio Out

LOUROE MODEL IF-4

AUDIO INTERFACE ADAPTER

IF-4 will accommodate up to
4 Louroe microphones

VE RIF ACT A

A B C

N

L

2 CONDUCTOR

SHIELDED

22 GAUGE

WEST PENN

452 OR EQUIV.

OUROE

L

LECTRONICS

E

ON RS

1 2 3 4

1

Verifact A Microphone Shown

BLACK

BLACK

BARE

MIC INPUTS

AUDIO OUTPUTS

2

Audio Test Switch

RCA CABLE CONNECTS FROM

“AUDIO OUT” OF IF-4 TO

“AUDIO IN” OF DVR, ETC.

Back side of

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VE RIF ACT A

A B C

RED

FOUR ZONE AUDIO INTERFACE ADAPTER

3

N

L

BARE

R

RED

AUDIO LEVEL CONTROL

A

C

B

+12 Vdc POWER
SUPPLY (INCLUDED)

IF-4

B

C

11 1 1

4

A

RCA output

Use 3.5mm adaptor of IF-4

for connection to

IP Camera or Video Server

audio input

LOUROE ELECTRONICS 6 9 5 5 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

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

Audio Path

Audio In

AUDIO OUT

AUDIO IN

DVR WITH RCA TYPE AUDIO INPUTS

Page 3 of 4

IP NETWORK CAMERA

OR

audio input

1 2 3 4

VIDEO SERVER

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INSTALLATION AND OPERATING INSTRUCTIONS

SPECIFICATIONS (IF-4 Interface Adapter)

Input (3-pin terminal block)

Audio Input Impedance
Audio Output Impedance
Audio Output Gain
Power Requirements +12 Vdc, 500mA
Dimensions

Weight

SPECIFICATIONS (Microphone - Model A)

Type

Output

Line Level (0dB@1KΩ)

17.5kΩ

600Ω @ 1kHz
Up to +10dB

11½”L x 4¾”W x 1¼”H

12.5 oz

Electret Condenser
Line Level (0 dB 600W @ 1 kHZ)

Frequency response
Current drain

Supply voltage
Dimensions

Weight

Weight of the kit

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.

50 Hz to 15 kHz ± 1 dB
10 mA

12Vdc
4"Dia x 1 ½"H

3.5 oz

IMPORTANT NOTICE

4 lbs

AUDIO

MONITORING

On

These Premises

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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.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]

®

®

®

®

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

WARRANTY

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