®

6955 VALJEAN AVE, VAN NUYS, CA 91406

PH: (818)994-6498 / FAX: (818)994-6458 [email protected]

/ www.louroe.com

® ASK-4 #601

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

®

The ASK-4 601 is a single zone audio monitoring system with a wall mounted mute switch. This system is designed to interface with a DVR, VCR or other recording devices that accept line level input. The APR-1 Audio Base Station contains a built-in 3” speaker omnidirectional pre-amplified microphone that produces line level output. The MS-1 is an illuminated mute switch that can mute microphone output to recorder and is commonly used for interrogation rooms.

Fig. 1

MS-1 Mute Switch

®

VERIFACT A

AD-1

APR-1 Base Station

Contents Description

APR-1

Used for listening to live audio from microphone, as well as audio playback from DVR’s, VCR’s or other audio devices.

Line Level, Electret condenser microphone with preamp. Picks up normal sounds within 30’ circle.

May be located Up to 1000’ from

AD-1

Dual RCA Cable

U

® listed AC ADAPTER.

Supplies 12 Vdc to APR-1 and

Microphone.

RCA cable for connection to a

DVR/VCR or other Audio devices that accept line level input

(0dB @ 600 Ω

MS-1 Contains a built-in rocker

switch mounted to a single gang

stainless steel face plate.

DUAL RCA Cable

WIRING REQUIREMENTS

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

NOTE: Unshielded cable is not satisfactory for audio systems.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 1 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

DESCRIPTION

THE APR-1 IS SHOWN BELOW. ALL CONTROLS ARE LOCATED AT THE FRONT PANEL. ALL CONNECTIONS ARE

MADE AT THE REAR PANEL.

Fig. 2

FRONT PANEL LAYOUT OF APR-1

[9]

[2]

POWER-VOLUME

OFF

[1]

MAX

PWR

MUTE

PLAYBACK

OVERLOAD

APR-1

MUTE

PUSH FOR

PLAYBACK

SINGLE

ZONE

AUDI

O BAS

E STATI

ON

[3]

[4]

[5]

[6]

[7]

[8]

TM

[1] Power-Volume

[2] Power Indicator

[3] Mute Indicator

Turns “ON” power to the unit and controls the audio volume through the Speaker[9] .

Lights (green) when the power is present to the unit.

Lights (orange) when Mute Switch[6] is pushed in. Audio is muted.

[4] Playback Indicator Lights (yellow) when Push for Playback[7] is pushed in to “ON” position.

[5] Overload Indicator Flashes (red) when there is a short in the power supply.

[6] Mute Switch

[7] Push for playback

Used to mute the audio on both live and playback mode.

Used for DVR/VCR playback. May also be used to listen to audio from an external source. Press switch to listen to playback. Switch must be “OUT” or “OFF” when monitoring and recording, otherwise live audio is muted.

[8] Headphone Jack Used for private listening. Any 3.5mm stereo headphone with 8 Ω

600 Ω

[9] Speaker (3”) Provides live audio. Muted when a headphone is connected to

H eadphone Jack [8] .

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 2 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

Fig. 3

REAR PANEL LAYOUT OF APR-1

+12 Vdc INPUT

AUDIO

OUTPUT

M A D E

I N

U

SA

MIC INPUT

A B C

VAN NUYS, CA

[10] [11] [12] [13]

[10] Power Jack

[11] AUDIO IN Jack (RCA)

Accepts 12Vdc power from Model AD-1 Power Supply

(included with APR-1 Audio Base Station). AD-1 has a 90 ° 2.1mm female plug.

Accepts audio playback from an external source (DVR/VCR).

Audio playback is produced through the speaker. The Push for Playback [7] must be “IN” during audio playback and “OUT” when not used for playback.

[12]

[13]

AUDIO OUT Jack (RCA)

Audio Terminal Block

Provides audio output and connection to a DVR, VCR, etc.

A 3-pin terminal block marked A, B, C.

Accepts wiring from the remote Louroe™ Microphone.

A is 12Vdc Power

B is Audio

C is Ground

®

SENSITIVITY SWITCH OF VERIFACT A MICROPHONE

For special installations that require less microphone sensitivity or where there is background noise, a sensitivity switch is mounted to the microphone pre-amp (PC Board) and has two positions, N and L:

N represents normal sensitivity (0dB ouput into 1k Ω

L represents low sensitivity (-6dB output into 1k Ω

®

Louroe VERIFACT microphones are always shipped with the sensitivity switch in normal (N) position. Do not change unless necessary. To change the sensitivity setting, use a small screwdriver and move slide switch from N to L position.

The switch is mounted on the back side of the microphone housing.

® ®

INTERFACING ASK-4 KIT #601 WITH A DVR OR PC SOUNDCARD

®

The APR-1 Audio Base Station of ASK-4 Kit #601 is compatible with all commercial DVR’s and PC

Soundcards that accept line level input. An RCA cable is included with the kit for connecting Audio Out to

Audio In of DVR. If DVR’s audio input is a 3.5mm jack, an RCA to 3.5mm adapter (not supplied) must be attached to the plug that connects to DVR’s Audio Input . Check with DVR’s specifications to determine if the audio input requires a stereo or mono 3.5mm plug.

PC soundcards contain a standard 3.5mm stereo Audio Input or Line Input . Do not use Mic Input of soundcard. Louroe microphones are line level (0dB@600 Ω Audio

Input ” or Line Input ” of the soundcard.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 3 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

INTERCONNECTION DIAGRAM

Fig. 4

Gain adjust switch

(factory set)

A B C

C B A

A B C

N

L

MS-1

Mute Switch

WIRE NUT

WIRING REQUIREMENTS

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

NOTE: Unshielded cable is not satisfactory for audio systems

West Penn 452 or equivalent

M I C R O P H O N E TERMINAL

BLOCK OF

VERIFACT A

MICROPHONE

All Louroe microphones are compatible with the MS-1

Model Verifact A is shown as an example

Refer to Louroe Base Station or

Audio Interface Adapter

Installation and operating instructions www.louroe.com

A B C

Terminal Block of

Louroe APR-1 Base Station or

Audio Interface Adapter

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 4 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

WIRING CONNECTIONS AND TEST

1. Starting with the microphone, using recommended cable, connect RED wire to Pin A, BLACK wire to Pin B and BARE wire to Pin C. Connect the other end of this cable to MS-1. Connect RED wire from microphone terminal A to terminal B of the MS-1. Connect bare wire from terminal C of microphone to terminal C of MS-1. Refer to drawing on page 4.

2. Using another similar cable, connect the APR-1 Base Station to the MS-1. Connect RED wire from terminal A of MS-1 to terminal A of APR-1 base station. Connect the BARE wire from Terminal C of the MS-1 to terminal C of the base station. Connect the BLACK wire from the terminal B of the base station directly to terminal B of microphone or splice the cable at the MS-1 using wire nut as shown in the diagram.

4. Plug AD-1 power supply (AC Adapter) into the Power Jack[10] located on back panel of APR-1 first. Then connect 2prong block into standard 110/120 AC wall receptacle or power strip.

5. Turn “ON” power to APR-1 by rotating the Power-Volume Knob[1] clockwise. The green PWR[2] LED will illuminate.

Adjust volume of audio by rotating the knob either clockwise to increase or counterclockwise to decrease. Locate microphone so as not to create feedback with the APR-1. The further the microphone is from the APR-1 the less feedback it generates. System works best if there is an acoustical barrier between the microphone and the

APR-1, such as a wall or room divider. If there is no wall or barrier, microphone should be mounted at least 25 ft. from the APR-1 Base Station.

6. Listen to the audio at the base station by turning ON the rocker switch of the MS-1. Audio should be heard at the base station. Turn OFF the rocker switch of the MS-1. No audio should be heard at the base station.

7. Plug headphone into the Headphone Jack[8]. Speaker[9] output is muted and sound is transmitted through the headphone.

8. Using the dual RCA cable (supplied), connect DVR/VCR’s AUDIO OUT jack to APR-1’s AUDIO IN Jack[11] .

9. Connect DVR/VCR’s AUDIO IN jack to APR-1’s AUDIO OUT Jack[12] .

10. Press “REC” on the recording device and record live audio for several minutes.

11. Press Push for Playback Switch[7] to “ON” position. Playback Indicator LED[4] will illuminate yellow.

12. Press “PLAY” on the DVR/VCR to playback recorded audio from the APR-1.

13. Press Mute Switch[6] to mute the audio on built in speaker while allowing audio to be output to a recorder. Mute

Indicator LED[3] will light and no audio can be heard on the speaker on both live and playback audio. When Mute

Switch[6] is ON Playback Indicator LED[4] will not light even when the Push for Playback Switch[7] is pushed in and the audio is muted.

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 5 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

SPECIFICATIONS (Microphone - Model A)

Type

Output

Electret Condenser

Line Level (0 dB 600 W

Frequency response

Current drain

Supply voltage

Dimensions

Weight

50 Hz to 15 kHz

10 mA

12Vdc

4"Dia x 1 ½"H

3.5 oz

SPECIFICATIONS OF MS-1 MUTE SWITCH

Supply Voltage 12Vdc

Dimensions

Faceplate

Backbox

Weight, net

2 ¾ W x 4 ½" H

303 Stainless Steel

Single gang electrical box (not included)

2.5 oz

SPECIFICATIONS (Base Station - APR-1)

Monitor output power

Audio output impedance

Audio input impedance

Freq. response

Headphone impedance

Power supply

Dimensions

Weight

Shipping Weight of kit

1W@8

600 W

10K

100 Hz to 10 kHz

8 to 600

12 Vdc, 500 mA

8 ¼"L x 5 ¾”W x 1 3/8" H

1 lb 6 oz

4 lbs

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 6 of 8 ASK4_601_inst 2/15

INSTALLATION AND OPERATING INSTRUCTIONS

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.

AUDIO

MONITORING

On

These Premises

®

Federal Law References:

Federal Regulations, US Code, Title 18. Crime and Criminal

Procedure, Sec 2510.

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 five years (60 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 (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 7 of 8 ASK4_601_inst 2/15

MANUFACTURED

IN THE

LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX website: www.louroe.com e-mail: [email protected]

(818) 994-6458

Page 8 of 8 ASK4_601_inst 2/15