Panasonic MT-440 Operating Instructions

Instruction Manual

Four Channel Video Transmitter

MT-440

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek MT-440 multimode four channel video transmitter. Please take a few minutes to read these installation instructions in order to obtain the maximum performance from this product.

FUNCTIONAL DESCRIPTION

The MT-440 operates as half of a transmitter / receiver pair for the transmission of four simultaneous, real time, baseband NTSC, PAL, RS170, or RS343 video signals over a single multimode fiber optic cable. It is designed to operate with the MR-440 or RR-440 four channel video receiver.

The MT-440 transmitter accepts up to four video inputs. Each video input modulates a separate FM carrier frequency to allow the total of four video signals to be combined onto one fiber. The 440 Series product is designed to operate over an optical loss budget range of 0 to 12 dB. The system’s fiber bandwidth should be a minimum of 150 MHz at 1300 nm. For example, if the system fiber has a 600 MHz-km modal bandwidth specification, the 440 will operate over a distance up to 4 km. The MT-440 operates on 50 um or 62.5 um multimode fiber. Refer to the data sheets for detailed specifications.

This unit is contained in a compact and rugged extruded aluminum housing with internal dc voltage regulation. The detachable terminal block and LED indicators provide for easy installation and monitoring of video and power supply.

The MT-440 is designed for mounting as a modular stand alone unit. For a rack mounted version please see the RT-440.

INSTALLATION

THE INSTALLATION OF THIS UNIT SHOULD BE MADE BY A QUALIFIED SERVICE PERSON(S) AND MUST CONFORM TO ALL LOCAL CODES.

Mount the unit to a secure surface using #8 (3mm) hardware in four places. Mounting dimensions can be found on the connection diagram included with this manual. Be sure to allow sufficient room for the required minimum bend radius of the fiber cable used.

POWER SOURCE

Power to the unit must be within the specifications listed. A 24VAC center tap transformer rated at 10VA is required. In the USA and Canada an American Fibertek PS-24CT-T is supplied with this unit.

POWER CONNECTION

Power is supplied to the unit via a three pin Phoenix connector. The ground wire from the center tap supply must be connected to the center pin of the Phoenix connector. When installed properly, the voltage measured from the center pin to either of the outside pins will be 12 volts AC and voltage measured from one outside pin to the other outside pin will be 24 volts AC.

INPUT / OUTPUT CONNECTIONS

The fiber optic connection is made via a ST connector located on the left side of the unit.

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