Page 1
®
6955 VALJEAN AVE, VAN NUYS, CA 91406
PH: (818)994-6498 / FAX: (818)994-6458
/ www.louroe.com[email protected]
INSTALLATION AND OPERATING INSTRUCTIONS
VERIFACT A
AUDIO MONITORING SYSTEM
DESCRIPTION
The Model Verifact A is an omni-directional, low
®
impedance, electret condenser microphone with built-in
preamp. It can pick up normal sounds approximately
15 ft. away, or within a 30 ft. diameter circle. Verifact A
®
produces line level output and can be located up to
1,000’ from the Louroe base station. It is primarily
designed for ceiling mounting but can also be installed
on any type of flat surface. The Verifact A is
®
compatible with all Louroe Audio Base Stations or
Louroe Audio Interface Adapters.
NOTE:
Verifact A Microphone is NOT recommended for
®
outdoor use or in areas with high moisture
content.
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Microphone
Element
Housing and
pre-amp
R
U
T
E
D
C
A
I
N
T
H
E
SPECIFICATIONS
F
U
N
A
M
<Sensitivity -45 dBV/Pa
1 Pa = 94 dB SPL
<Frequency Response 50 Hz to 15 kHz
<Output Line Level (0 dBV, 600W @ 1kHz)
<Current Drain 10mA
<Supply Voltage 12 Vdc
<Microphone Housing High Impact Anti-Static ABS
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
de cal n otice i s in clu ded wit h ea ch
microphone shipped.
<Dimensions 4” Dia x 1 1/2” H
Federal Law References:
<Weight 3.5 oz
Shipping Weight 1 lb
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.
®
®
®
WARRANTY
Federal Regulations, US Code, Title 18.
Crime and Criminal Procedure, Sec 2510.
®
®
IMPORTANT NOTICE
®
AUDIO
MONITORING
On
These Premises
®
LOUROE ELECTRONICS 6 9 5 5 VA LJ E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458
®
(818)
website: www.louroe.com e-mail: [email protected]
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INSTALLATION AND OPERATING INSTRUCTIONS
ELECTRICAL CONNECTION
The Model A is cylindrical, 4” dia. x 1½” H, and has four mounting holes for surface mounting to a ceiling or
other flat surface. It should be positioned so that the microphone is 4’ to 8’ from the area of desired coverage.
MICROPHONE CONNECTION
A 3-pin terminal block is located on the back of the microphone housing, marked A, B, C.
A represents +12 Vdc Power
B represents Audio Output
C represents Ground
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
CONNECTING VERIFACT A MICROPHONE TO A LOUROE BASE STATION OR AUDIO
INTERFACE ADAPTER
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)
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CONNECTING VERIFACT A MICROPHONE TO OTHER AUDIO DEVICES.
®
If a Louroe audio base station is not used and microphone is being connected directly to another source 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. Wire
from terminal B should be shielded.
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 sensitivity
switch can be moved from “N” position to “L” position to help reduce background noise. “N”is normal, “L” is low
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 at a cash register checkout, microphone should be installed closer to the customer rather than the cash
register, as the drawer sound could dominate the recording. It should be installed closest to the
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.
LOUROE ELECTRONICS 6 9 5 5 VA LJ E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458
®
website: www.louroe.com e-mail: [email protected]
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INSTALLATION AND OPERATING INSTRUCTIONS
BACK S IDE OF
MICR O PHONE
RED
BLACK
VERI FAC T A
A B C
®
N
L
BARE
The microphone pre-amp (PC board) contains a sensitivity
MICROPHONE SENSITIVITY SWITCH
switch with two positions marked N and L, and is located on the
back side of the Model A near the terminal block:
N represents normal sensitivity
(0 dB @ 1,000W)
L represents lower sensitivity
(-6 dB @ 1,000W)
Microphone is always shipped in the N position. For less
microphone sensitivity, move slide switch to L position.
WIRING REQUIREMENTS
2 Conductor shielded cable, 22
gauge with a 24 gauge drain
wire.
NOTE: Unshielded cable is not
satisfactory for audio
systems.
A = +12Vdc (RED)
B = Audio (BLACK)
C = Ground (BARE)
BLACK
RED
B
A
TO LOUROE BASE STATION
TO OTHER LOUROE AUDIO RECORDING DEVICES
(IF-1, IF-2, IF-4, IF-8 ETC.)
LOUROE ELECTRONICS 6 9 5 5 VA LJ E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458
®
website: www.louroe.com e-mail: [email protected]
C
OR
BARE
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CONNECTING A LOUROE MICROPHONE DIRECTLY
TO AN IP CAMERA, ENCODER OR DVR WITH 3.5mm
12 Vdc POWER SUPPLY
INSTALLATION AND OPERATING INSTRUCTIONS
MONO AUDIO INPUT
MICROPHONE TERMINAL BLOCK
A
B
C
+12 Vdc
+
_
GROUND
A = 12Vdc Power
B = Audio Output
C = Ground
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
OTHER PLUGS WIRING CONFIGURATION
Black Wire
Red Wire
S
T
E
R
E
O
Audio In
of receiver
3.5mm Stereo CONNECTION
Red Wire
Black Wire
R
C
A
Audio In
of receiver
RCA CONNECTION
LOUROE ELECTRONICS 6 9 5 5 VA LJ E A N AVENUE, VAN NUYS, CA 91406 TEL (818) 994-6498 FAX 994-6458
®
website: www.louroe.com e-mail: [email protected]
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