Louroe Electronics ASK-4 User manual

ASK-4®# 101-RM
AUDIO MONITORING SYSTEM
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
INSTALLATION AND OPERATING INSTRUCTIONS
ASK-4®# 101-RM (LE-018)
The ASK-4® #101-RM is a rack mount single zone audio monitoring system designed to interface with a DVR, VCR or other recording
devixes 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 Microphone “A” is an omnibirectional preamplied microphone that produces line level output.
[10] Power Jack [12] Audio Out Jack (RCA)
[13] Audio Terminal Block
[11] Audio In Jack
MIC INPUT
INPUT+12Vdc OUTPUT
MIC INPUT A B C
PART DESCRIPTION
[1] Power-Volume Turns “ON” power to the unit and controls the audio
volume through the Speaker[9] .
[2] Power Indicator Lights (green) when the power is present to the unit.
[3] Mute Indicator 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 Used to mute the audio on both live and playback
mode.
[7] Push for play-
back
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 8Ω to 600Ω impedance can be
used.
[9] Speaker (3”) Provides live audio. Muted when a headphone is
connected to Headphone Jack [8].
[10] Power Jack Accepts 12Vdc power from Model AD-1 Power Sup-
ply (included with APR-1 Audio Base Station). AD-1
has a 90° 2.1mm female plug.
[11] Audio in Jack
(RCA)
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] Audio Out Jack
(RCA)
Provides audio output and connection to a DVR,
VCR, etc.
[13] Audio Terminal
Block
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
PRD # Description PRD # Description
APR-1
(LE-146) listed Audio Base Station. l Used for listening to live
audio from microphone, as well as audio playback from
DVR’s, VCR’s or other audio devices.
RM-1935
(LE-205)
Rack mount assembly (19”W x 3 ½ ‘H)
Verifact™ “A” Mic
(LE-070)
Line Level, Electret condenser microphone with pre-
amp. Picks up normal sounds within 30’ circle. May be
located Up to 1000’ from APR-1 Base Station.
RCA cable for connection to a DVR/
VCR or other Audio devices that accept
line level input
AD-1
(LE-242) listed AC ADAPTER. Supplies 12 Vdc to APR-1 and
PWR
MUTE
PLAYBACK
OVERLOAD
[1] Power-Volume
[6] Mute Switch
[8] Headphone Jack
[2] Power Indicator
[3] Mute
[4] Playback Indicator
[5] Overload Indicator [7] Push for Playback
[9] Speaker
SINGLE ZONE AUDIO BASE STATION
APR-1
PUSH FOR
PLAYBACK
MUTE
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ASK-4®# 101-RM
AUDIO MONITORING SYSTEM
INSTALLATION AND OPERATING INSTRUCTIONS
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
Audio IN Audio
[10] [12] [13]
[11]
INPUT
+12Vdc OUTPUT
MIC INPUT
A B C
“Audio OUT” of APR-1 connects
to “Audio IN” for DVR or other
receiving device
“Audio IN” of APR-1 Connects
to “Audio OUT” of DVR or other
receiving device
AD-1 AC Adapter
12V/12Vdc, 500mA
Rear Panel of DVR with RCA Type Aduio Input
APR-1 (LE-146)
(Back Panel)
INTERCONNECTION DIAGRAM
VERIFACT™ “A” MICROPHONE TO APR-1 BASE STATION TO DVR, ETC...
VERIFACT™“A” (LE-070)
WIRING REQUIREMENTS
Both the Verifact™ “A” Microphone and APR-1 Audio Base Sta-
tion 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 con-
nection. Check with manufacturer’s specications to determine id
3.5, audio input/output is mono or stereo.
A B C
Terminal block Identier
for Microphone
(A) Red - 12Vdc power
(B) Black - Audio Output
(C) Bare - Ground

ASK-4®# 101-RM
AUDIO MONITORING SYSTEM
INSTALLATION AND OPERATING INSTRUCTIONS
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
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 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-RM WITH A DVR OR PC SOUND-
CARD
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 Power-Volume Knob[1] clock-
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 fur-
ther the microphone is from the APR-1 the less feedback it generates. Sys-
tem 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 Jack[1 1] .
6. Connect DVR/VCR’s AUDIO IN jack to APR-1’s AUDIO OUT Jack[12]
7. Press“REC” ontherecording deviceandrecord liveaudiofor severalminutes.
8. Press Push for Playback Switch[7] to “ON” position. Playback Indicator
LED[4] will illuminate yellow.
9. Press “PLAY” on the DVR/VCR to playback recorded audio from the AP
10. Press Mute Switch[6] to mute audio heard on the speaker. 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.
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 clos-
er to the customer rather than the cash register, as the drawer
sound may dominate the recording. It should be installed clos-
est 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 CONNECTIONS AND
TEST.
SPECIFICATIONS
VERIFACT™ “A” (LE-070)
Type Electrect Condenser
Output Line Level 0 dB @ 1KΩ, unbalanced
Frequency Response 40 Hz to 15 kHz ± 1 dB
Current Drain 4 mA
Supply voltage 12Vdc
Dimensions 4”Dia x 1 ½”H
APR-1 (LE-146)
Input sensitivity (mic) 0.78V
Monitor output power 1W@8Ω
Audio line output impedance 600Ω or higher
Audio input impedance 10K
Freq. response 100 Hz to 10 kHz
Headphone impedance 8 to 600Ω
Universal power supply 12 Vdc, 500 mA
Dimensions 8 ¼”L x 5 ¾”W x 1 ⅜”H
Weight (shipping) 1.5 lbs. (0.68)Kg
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6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM

MADE IN U.S.A
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
WORLD LEADER IN AUDIO MONITORING TECHNOLOGY
ASK-4®# 101-RM
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 sub-
jected 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 sat-
isfaction, 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 Net-
work video systems, video servers and computer based recorders.
We are recognized worldwide for our variety of audio monitoring technol-
ogy. 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 prod-
ucts provide reliability, durability and excellent performance for our cus-
tomers’ needs. We are proud to continue designing, engineering and man-
ufacturing at our headquarters base in Van Nuys, California.
IMPORTANT NOTICE
When this equipment is used as part of an audio moni-
toring 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.
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