Louroe Electronics VERIFACT C User manual

The Verifact C is a low impedance, line level electret condenser microphone with
pre-amp and omni-directional pickup. It is designed for mounting in special or
customized housing. The Verifact C can pick up normal sounds 15 ft. away or
within a 30 ft. Circle. It may be mounted up to 1,000 ft (305m) from the Louroe
Base Station or audio interface adapter.
2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire
NOTE: Unshielded cable is not
satisfactory for audio systems
WIRING REQUIREMENTS
West Penn 452 or equivalent
E
LOUROE
LECTRONICS
6955 VALJEAN AVE, VAN NUYS, CA 91406
PH: [phone] / FAX: [phone]
[email protected] / www.louroe.com
VERIFACT C
MICROPHONE
INSTALLATION AND OPERATING INSTRUCTIONS
MODEL C MICROPHONE
CMIC 1/09
MICROPHONE ELEMENT
RUBBER GROMMET

CONNECTING VERIFACT C MICROPHONE TO A LOUROE RECEIVING DEVICE (BASE
STATION OR AUDIO INTERFACE ADAPTER)
After microphone connection has been made, run 2 conductor shielded cable to the Louroe Base Station or interface
adapter.
If Louroe Base Station is AP Series, the AVS Series, DG-12/25 series, IF-1, IF-4 or IF-8:
RED wire to terminal Aof base station
BLACK wire to terminal Bof base station
BARE wire to terminal Cof base station
If Louroe Base Station is ALA 4/8 Series:
RED wire to terminal B+ of base station
BLACK wire to terminal MIC of base station
BARE wire to terminal GND of base station
NOTE: If DVR’s audio input is 3.5mm (1/8”port), a 3.5mm adapter must be connected to one end of the RCA cable.
Check DVR manufacturer’s instructions to determine if 3.5mm audio input is mono or stereo.
VERIFACT C MICROPHONE INSTALLATION INSTRUCTIONS
CONNECTION VERIFACT C MICROPHONE DIRECTLY TO A DVR OR SOUNDCARD
If a Louroe Audio Base Station or interface adapter is not used and Verifact C is to be connected
directly to a DVR or soundcard, etc. use the following procedures:
1) Apply 12 Vdc (100 mA minimum) to PC board’s terminals A and C, A is positive, C is
ground
2) Run a single conductor shielded cable 22 gauge with a 24 gauge drain wire to DVR or
soundcard location of microphone
3) Solder on an RCA connector with wire from terminal B of microphone going to the tip
of the plug, and wire from terminal C of microphone going to the sleeve of RCA plug.
4) Connect RCA plug into “Audio In” jack of DVR or soundcard.
PAGE 1 OF 2
Microphone pre-amp is mounted in a protective plastic housing with openings for wire connection and
microphone sensitivity adjustment. If microphone is to be mounted in a special housing, a black
grommet is included for optional use in securing the microphone element to the inside of a camera
housing or special housing. A 1/8” minimum opening must be provided for microphone pickup.
Microphone should be located within 4’ to 6’ of the subject. Avoid ceiling mounts in excess of 10’ in
height.
MECHANICAL INSTALLATION:
Verifact C Microphone will connect directly to any Louroe Base Station (AP Series, ALA Series or DG
Series) or to the IF-1, IF-4 or IF-8 Interface Adapters. A small terminal block is located on the
microphone pre-amp, and marked A, B, C:
A represents 12 Vdc (positive)
B represents Audio (Mic output)
C represents Ground (negative)
ELECTRICAL CONNECTION:
NOTE:
Verifact C Microphone is NOT recommended for
outdoor use or in areas with high moisture content.
LOUROE ELECTRONICS 6955 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]
Website: www.louroe.com Email: [email protected]
CMIC 1/09

VERIFACT C MIICROPHONE INSTALLATION INSTRUCTIONS
CONNECTION DIAGRAM
Verifact C®
Microphone
NOTE:
This microphone is NOT
recommended for outdoor
use or in areas with high
moisture content
TO LOUROE
BASE STATION
OR AUDIO AUDIO
INTERFACE
ADAPTER
RED wire (12 Vdc) connects to Terminal A
BLACK wire (Audio) connects to Terminal B
wire (Ground) connects to Terminal CBARE
If using recommended wiring (West Penn 452)
MICROPHONE SENSITIVITY SWITCH
The microphone pre-amp (PC board) contains a sensitivity switch with two positions:
N represents normal sensitivity (zero dB @ 1,000)
L represents lower sensitivity (-6 dB @ 1,000)
Microphone is always shipped in the N position. For less microphone sensitivity,
move slide switch to L position. Do not change unless required.
PAGE 2 OF 2
LOUROE ELECTRONICS 6955 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]
Website: www.louroe.com Email: [email protected]
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.
2 Conductor shielded cable, 22
gauge with a 24 gauge drain wire
NOTE: Unshielded cable is not
satisfactory for audio systems
WIRING REQUIREMENTS
West Penn 452 or equivalent
A (12 Vdc)
B (Audio)
C (Ground)
A
L
C
B
E
L
N
CMIC 1/09

E
LOUROE
LECTRONICS
MANUFACTURED
IN THE
LOUROE ELECTRONICS 6955 VALJEAN AVENUE, VAN NUYS, CA 91406 TEL [phone] FAX [phone]
Website: www.louroe.com Email: [email protected]
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 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.
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.
AUDIO
MONITORING
E
LOUROE
LECTRONICS
On
These Premises
SPECIFICATIONS
Frequency response
Output
Current drain
40 Hz to 15 kHz ± 1 dB
Line Level (0 dB @ 1000Ω)
4 mA
Supply voltage 12 Vdc
Output impedance (mic only) 600Ωunbalanced
PC board housing dimensions 2 7/8”L x 2 3/8"W x 7/8"H
PC board dimensions 2 ¼"L x 1 5/8"W x 5/8" H
Microphone size
Weight
3/8"Dia. x ¼"H
0.5 Lbs (0.2 Kg)
CMIC 1/09