Louroe Electronics LE-075 - Manual (Page 2)

DIRECT CONNECTION TO A DVR, IP NETWORK CAMERA OR OTHER AUDIO SOURCE
If a Louroe Base Station or Model IF-Series Interface Adapters is not being used and Model E is to be connected
directly to a DVR or other audio source, use the following procedure.
1) Apply 12 Vdc (100 mA minimum) to PC board’s terminals A and C, A is positive, C is ground
2) Connect a single conductor shielded cable to terminal B of microphone
3) Connect a 24 gauge drain wire to terminal C of microphone (C is common for power and audio output)
4) At DVR, etc. location, solder shielded wire from terminal B of microphone to the center (or tip) of an RCA
plug
5) Solder drain wire from terminal C of microphone to the sleeve of the RCA plug
6) Connect RCA plug to the “Audio In” jack of DVR, IP Network camera, Video Server, Etc.
If “Audio In” jack of DVR, IP network cameras, etc. is other than RCA or 3.5mm, refer to manufacturers instructions for
connections
MECHANICAL INSTALLATION
Verifact E Microphone is designed for surface mounting to a wall or a pole. It should be
located 6 to 8 ft. from the area of desired coverage. One inch threaded knock-outs are located
at the top and back side of Bell Box® for conduit connection. As a finished unit, the Verifact E
Microphone is classified as WEATHER RESISTANT. Sealing around face plate and conduit
connection is required. Make certain Verifact E assembly is mounted so that microphone
portion is facing downward.
Remove Verifact E faceplate. Attached to face plate is a PC Board with a small 3-pin
terminal block marked A, B, C. Using recommended wiring connect as follows:
RED connects to terminal A (12 Vdc Power)
BLACK connects to terminal B (Audio output)
BARE connects to terminal C (Ground)
WIRING CONNECTION TO MICROPHONE
WIRING CONNECTION TO A LOUROE BASE STATION OR IF-1, IF-2, IF-4 AND IF-8 ADAPTERS
Louroe base stations and the IF-Series Interface Adapters contain a 3-pin terminal block (or
blocks if multiple zones) marked A, B, C. Bring in other end of cable and make connections
matching A to A, B to B and C to C. (Terminal A of base station or Interface Adapter sends
phantom power to the microphone).
Refer to connection diagram on page 3.
MICROPHONE SENSITIVITY SWITCH
The microphone pre-amp (PC board) contains a
sensitivity switch with two positions (see page 2):
N represents normal sensitivity (zero 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. Do not change unless required.
INSTALLATION AND OPERATING INSTRUCTIONS
Page 2 of 4
LOUROE ELECTRONICS 6 9 5 5 VA L J 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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