American Fibertek RR-89A-L User Manual

Aiphone LEF Series Intercom

Instruction Manual

RR-89A-L

Audio Transceiver For

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek RR-89A-L multimode audio / contact closure transceiver. Please take a few minutes to read these installation instructions in order to obtain the maximum performance from this product.

FUNCTIONAL DESCRIPTION

The RR-89A-L operates as half of a transceiver pair for the transmission of bi-directional Aiphone LEF Series intercom signals. It is designed to operate with the MT-89A-L or RT-89A-L audio transceiver over a single multimode fiber optic cable. In addition, the RR-89A-L can transmit one independent dry contact closure to the MT-89A-L or RT-89A-L.

The RR-89A-L converts an audio input signal along with a contact closure input into an optical output using an 850nm wavelength source. The RR-89A-L also converts an optical input signal returning on the same fiber into an audio output and a call button output using a 1300nm wavelength detector. The 89A-L Series product is designed to operate over an optical loss budget range of 0dB to 12dB. The RR-89A-L operates on 50um or 62.5um multimode fiber. Refer to the data sheets for detailed performance specifications.

This unit is designed for rack mounting in any of the three American Fibertek subracks available. The subrack model numbers are SR-20/1, SR-20R/1, and SR-20/2. Slide in rack mounting and an LED indicator provides for easy installation and monitoring of optical and dc power.

The RR-89A-L is designed for rack mounting only. For a stand alone version please see the MR-89A-L.

INSTALLATION

THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND SHOULD CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND LOCAL CODES.

The unit slides into any open slot in the SR-20 subrack. Use a small screwdriver to push and lock the two ¼ turn fasteners into place.

POWER SOURCE

Power to the unit is supplied by the subrack. Please refer to the SR-20 and PSR instructions for further details.

POWER CONNECTION

Power is supplied to the unit via a four finger backplane connector. The RRM-1485 can be inserted into the subrack or removed from the subrack with power applied to the backplane.

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