Louroe Electronics IF-2 - Manual (Page 2)

CONNECTION BETWEEN IF-2/IF-4/IF-8 AND DVR (OR OTHER AUDIO RECEIVING DEVICES)
The output side of IF-2/IF-4/IF-8 has an RCA output per microphone with two types of connectors
1. RCA to RCA type cable; for connection to a DVR, etc. with RCA audio inputs
2. RCA to 3.5mm mono adaptor: for connection to a DVR, IP Network Camera or Video Server
that has 3.5mm audio inputs.
If the receiving device contains RCA type “audio in” jacks, then connect from Audio Out of IF-2/IF-4/IF-8 to
Audio In of DVR, using the provided RCA connector cables.
If the receiving device contains 3.5mm mono audio inputs, connect 3.5mm RCA to mono adaptor to one
end of the RCA cable (supplied) and plug that end to the IP camera or video server. Connect the RCA
end of the cable to the output of the IF-2/IF-4/IF-8.
Included with the units are:
2, 4 or 8 RCA to RCA cables
2, 4 or 8 RCA to3.5mm mono adaptors
APPLYING POWER TO THE IF-2/IF-4/IF-8
Included with the IF-2/IF-4/IF-8 is a power supply (120V/12Vdc). Connect the small end of the 90° female
plug into the 12Vdc jack, located on the input side. Then connect the two-prong large end into a
standard 110/120V electrical outlet.
Turn ON/OFF power switch, located behind green power LED to ON position. The green LED will illuminate,
indicating power to the system. The system will now provide audio to the DVR, Soundcard Module, IP
Network Camera, etc.
AUDIO LEVEL ADJUSTMENT
Located on the input side are potentiometers (round, with adjustment arrow) for each microphone. This is
for adjusting the audio gain and to prevent overdriving or underdriving the audio signal.
The adjustment arrows are shipped in the straight-up position. Turn slowly counterclockwise to lower
the gain, and clockwise to increase. This will provide the desired level of audio signal into the Audio
Receiving Device (DVR, Soundcard Module, etc.). A full turn clockwise increases the gain to 10dB. A
full turn counterclockwise will decrease the gain -30dB.
AUDIO TEST SWITCH
The purpose of this switch is to indicate the presence of audio and to assure the user that the IF-2/IF-4 or IF-
8 is driving the audio signals into the audio input of receiving device (DVR, IP Network Camera, Video
Server, Soundcard module, etc.)
Located on the audio output side of IF-2/IF-4/IF-8 is a DIP switch labeled Audio Test Switch. To the left
of the switch is a red LED marked Audio Indicator.
For testing:
1) Select a zone that has a microphone connected to the microphone terminal block.
IF-2 utilizes pins 1&2. IF-4 utilizes pins 1-4. IF-8 utilizes pins 1-8.
2) Push pin to the ON position. The red LED will illuminate, indicating audio is present. With
short bursts of audio, the LED will flicker and with continuous flow of audio LED
illumination is constant. Only one microphone can be tested at a time
NOTE: When testing is complete, all pins on DIP switch
NOTE: When testing is complete, all pins on DIP switch must be in the OFF position
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]
(818) ®
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