American Fibertek MT-86 User Manual

Telephone Transceiver

Instruction Manual

MT-86

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek MT-86 series multimode telephone transceiver. Please take a few minutes to read these installation instructions in order to obtain the maximum performance from this product.

FUNCTIONAL DESCRIPTION

The MT-86 operates as half of a transceiver pair for the transmission of bi-directional Plain Old Telephone Signals (POTS). It is designed to operate with the MR-86 or RR-86 telephone transceiver over a single multimode fiber optic cable. In addition, the MT-86 can transmit one independent dry contact closure to the MT-86 or RR-86.

The MT-86 converts a telephone set audio input along with calling signals into an optical output using a 1310nm wavelength source. The MT-86 also encodes a contact closure on the same fiber. Audio and calling signals from the telephone line are received from the MR-86 (orRR-86) using an 850nm wavelength detector. The 86 Series product is designed to operate over an optical loss budget range of 0dB to 12dB. The MT-86 operates on 50um or 62.5um multimode fiber. Refer to the data sheets for detailed performance specifications.

This unit is contained in a compact and rugged aluminum housing with internal dc voltage regulation. The detachable terminal blocks and LED indicator provide for easy installation and monitoring of optical and DC power.

The MT-86 is designed for mounting as a modular stand alone unit. For a rack mounted version please see the RT-86.

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.

Mount the unit to a secure surface using #8 (3mm) hardware in four places. See the drawing on the next page for mounting dimensions. Be sure to allow sufficient room for the required minimum bend radius of the fiber cable used.

POWER SOURCE

THIS PRODUCT SHALL BE POWERED BY A LISTED CLASS 2 POWER SUPPLY ONLY. This unit requires an isolated 24VDC power source for proper operation. In the USA and in Canada an American Fibertek PS-24DC is supplied with this unit. ANSI/NFPA 70 Class 2 wiring is recommended.

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