Louroe ASK-4 # 101-C Installation And Operating Insctruction Manual

ASK-4® # 101-C

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

ASK-4® # 101-C - (LE-362)

The ASK-4® 101-C is a single zone audio monitoring system 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 and volume control for producing live audio and audio playback. The

Verifact™ “C” is an omnidirectional pre-amplied microphone that produces line level output. The microphone is extended 3’ long designed for

mounting in special or customized housing.

KIT CONTENT

PRODUCT NAME DESCRIPTION

APR-1

(LE-146)

Verifact™ “C” Mic

(LE-072)

AD-1

(LE-242)

Dual RCA Cable RCA cable for connection to a DVR/VCR or other Audio devices that accept line level input.

listed Audio Base Station. 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 APR-1 Base Station.

listed AC ADAPTER. Supplies 12 Vdc to APR-1 and Microphone.

PART DESCRIPTION

[1] Power-Volume

[2] Power Indicator

[3] Mute Indicator

[4] Playback

Indicator

[5] Overload

Indicator

[6] Mute Switch

[7] Push for play-

back

[8] Headphone

Jack

[9] Speaker (3”)

[10] Power Jack

[11] Audio in Jack

(RCA)

[12] Audio Out Jack

(RCA)

[13] Audio Terminal

Block

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.

Lights (yellow) when Push for

Playback[7]

is

pushed in to “ON” position.

Flashes (red) when there is a short in the power sup-

Used to mute the audio on both live and playback

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

Used for private listening. Any 3.5mm stereo

headphone with 8Ω to 600Ω impedance can be

used.

Provides live audio. Muted when a headphone is
connected to Headphone Jack [8].

Accepts 12Vdc power from Model AD-1 Power Sup­ply (included with APR-1 Audio Base Station).

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

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

• B is Audio

• C is Ground

[1] Power-Volume
[2] Power Indicator

[3] Mute

[4] Playback Indicator

[5] Overload Indicator

[10] Power Jack [12] Audio Out Jack (RCA)

PWR

MUTE

APR-1

PLAYBACK

MUTE

OVERLOAD

SINGLE ZONE AUDIO BASE STATION

[6] Mute Switch

[7] Push for Playback

MIC INPUT

INPUT+12Vdc

[11] Audio In Jack

PUSH FOR
PLAYBACK

[8] Headphone Jack

OUTPUT

APR-1 (LE-146)

[9] Speaker

MIC INPUT

A B C

[13] Audio Terminal Block

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INTERCONNECTION DIAGRAM

VERIFACT™ “C” MICROPHONE TO APR-1 BASE STATION TO
DVR, ETC..

WIRING REQUIREMENTS

Both the Verifact™ “C” Microphone and APR-1 Audio Base Station
contain a 3-pin terminal block marked A, B, C

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

NOTE: Unshielded cable is not satisfactory for audio systems

NOTE: If DVR’s audio input and output are 3.5mm (mini jack) type, use

the appropriate adapter at one end of RCA patch cable for connection.

Check with manufacturer’s specications to determine id 3.5, audio

input/output is mono or stereo.

ASK-4® # 101-C

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

VERIFACT™ “C” (LE-072)

A B C

Terminal block Identier

for Microphone

(A) Red - 12Vdc power
(B) Black - Audio Output
(C) Bare - Ground

AD-1 AC Adapter (LE-242)

+12Vdc

[10]

APR-1 (LE-146)

(Back Panel)

MIC INPUT

OUTPUT

INPUT

[12]

[11]

“Audio IN” of APR-1 Connects
to “Audio OUT” of DVR or other
receiving device

A B C

[13]

“Audio OUT” of APR-1 connects
to “Audio IN” for DVR or other
receiving device

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Audio IN Audio

Rear Panel of DVR with RCA Type Aduio Input

ASK-4® # 101-C

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

SENSITIVITY SWITCH OF VERIFACT™ “C” 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 1kΩ)

• L represents low sensitivity (-6dB output into 1kΩ)

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.

NOTE REGARDING INTERFACING ASK-4 KIT #101 WITH A DVR OR PC SOUNDCARD

The APR-1 Audio Base Station of ASK-4 Kit #101 is compatible with all commercial

DVR’s and PC Soundcards that accept line level input (0dB@600Ω). 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 specications 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@600Ω) and will

overdrive the Mic Input. Use “Audio Input” or Line Input” of the soundcard.

WIRING CONNECTIONS AND TEST

1. Starting with the microphone, connect RED wire to Pin A, BLACK wire to
Pin B and BARE wire to Pin C. Connect other end of cable to Terminal
Block on back panel of APR-1 Base Station matching RED wire to Pin A,
BLACK wire to Pin B and BARE wire to Pin C. Refer to drawing on page 2.

2. Plug AD-1 power supply (AC Adapter) into the Power Jack[10] located

on back panel of APR-1 rst. Then connect 2- prong block into standard

110/120 AC wall receptacle or power strip.

3. Turn “ON” power to APR-1 by rotating the
wise. The green PWR[2] LED will illuminate. Adjust volume of audio by rotat-
ing 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.

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

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

6. Connect DVR/VCR’s AUDIO IN jack to APR-1’s AUDIO OUT

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

8. Press Push for Playback
LED[4] will illuminate yellow.

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

Jack[11].

Switch[7]

Power-Volume

to “ON” position. Playback

Knob[1] clock-

Jack[12]

Indicator

INSTALLATION TIPS

1. Use overall shielded audio cable only. West Penn 452, Belden 8451
or equivalent. UNSHIELDED CABLE IS NOT SATISFACTORY FOR
SOUND SYSTEMS.

2. When used in cashier’s booth, microphon should be installed

closer to the customer rather than the cash register, as the drawer
sound may dominate the recording. It should be installed clos­est to the area that needs to be monitored and documented.

3. Avoid installing microphone near air vents, air conditioner, fans and

other equipment that generate high sound and air pressure.

4. If using a VCR, it may have both intermittent and constant speed

playback. See VCR’s manual on how to select constant speed.

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 up to 25’ (7.6 m). WIRING CONNEC-

TIONS AND TEST

SPECIFICATIONS

VERIFACT™ “C” (LE-072)

Type

Output Line Level 0 dB @ 1KΩ,

Frequency Response 40 Hz to 15 kHz ± 1 dB

Current Drain

Supply voltage 12Vdc

Dimensions 4”Dia x 1 ½”H

APR-1 (LE-146)

Input sensitivity (mic)

Monitor output power

Audio line output impedance

Audio input impedance

Freq. response 100 Hz to 10 kHz

Headphone impedance 8 to 600Ω

Universal power supply 12 Vdc, 500 mA

Dimensions

Weight (shipping)

Electrect Condenser

unbalanced

4 mA

0.78V

1W@8Ω

600Ω or higher

10K

8 ¼”L x 5 ¾”W x 1 ⅜”H

4 lbs. (1.8)Kg

10. Press Mute
LED[3] will light and no audio can be heard on the speaker on both live and
playback audio. When Mute
will not light even when the Push for Playback
the audio is muted.

Switch[6]

to mute audio heard on the speaker. Mute

Switch[6]

is ON Playback

Switch[7]

Indicator

Indicator

is pushed in and

LED[4]

ASK-4® # 101-C

AUDIO MONITORING SYSTEM

INSTALLATION AND OPERATING INSTRUCTIONS

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 notication 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.

ABOUT LOUROE ELECTRONICS

Located in Van Nuys, California and 32 years young, Louroe Electron­ics™ has been the world leading Audio Manufacturer. Our continued
growth has resulted from providing innovative products, receiving high
customer satisfaction, maintaining strict devotion to quality standards
and following the law in Federal, State and Municipal Jurisdiction.

Our “Verifact” line of amplified microphones, complementing base sta­tions, and communication accessories, provide line level output to inter­face with various digital electronics. Our products are compatible with a
wide range of digital video recorders, video cassette recorder, Internet
Protocol Network video systems, video servers and computer based re­corders.

We are recognized worldwide for our variety of audio monitoring technol­ogy. Our products are used in over twenty countries and are utilized in
both the private sector and government applications. We currently serve
the needs of law enforcement, security, health care, entertainment, hos­pitality and retail industries and many more.
At Louroe Electronics we maintain rigorous standards to ensure our
products provide reliability, durability and excellent performance for our
customers’ needs. We are proud to continue designing, engineering and
manufacturing at our headquarters base in Van Nuys, California.

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.

MADE IN U.S.A

WORLD LEADER IN AUDIO MONITORING TECHNOLOGY

6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone]|

[e-mail] | WWW.LOUROE.COM