®
®
DESCRIPTION
6955 VALJEAN AVE, VAN NUYS, CA 91406
INSTALLATION AND OPERATING INSTRUCTIONS
PH: (818)994-6498 / FAX: (818)994-6458
/ www.louroe.com
®
AOP-550
Ceiling Mount (Flush)
AOP-555
Ceiling Mount (Surface)
Louroe Model AOP-550/555 are ceiling mount speakerphones designed to provide 2-way audio
(listen/talkback) with various modes of audio/video transmission systems such as:
DVR’s
IP Network Cameras
PC Soundcards
Video Servers
The AOP-550/555 provide line level audio input and output. It has amplifier that drives the built-in 4”
speaker.
AOP-550/AOP-555
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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The gain of the microphone is factory adjusted. The gain of the audio output can be adjusted using the
potentiometer on the PCB on the rear of the unit, the adjustment should be done in small increments.
To adjust the audio output of the speaker, rotate the blue potentiometer clockwise (increase) or
counterclockwise (decrease) slowly until the desired loudness is attained.
unit has a built-in echo-
cancellation system for when the device is configured for use in full duplex mode such that if the
device recognizes that the audio output is beyond a set internal level, the incorporated microphone
will be muted till the audio level falls.
The use of headphones or earphones is strongly recommended on the audio
monitoring/receiving system to avoid acoustic feedback, this is essential on monitoring
systems that do not have echo-cancellation functionality.
It is recommended to use the device in half duplex mode, however the