Panasonic MT-440 Operating Instructions

Instruction Manual

Four Channel Video Transmitter

© Copyright 2003, American Fibertek, Inc. 0630JD

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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Video input connections are located on the right side of the unit. A BNC connector is
provided for each channel. The video inputs are connected to an appropriate 75Ω
baseband video source such as a camera or a video recorder output. For optimum
performance the video cables should be the shortest length of coax practical.

MT-440 STATUS INDICATORS

The MT-440 transmitter provides the following LED status indicators to aid in installation
and troubleshooting:

POWER

A green LED indicator monitors the internal voltages created within the MT-440. Power
status associated with this LED is summarized below.

Power Indicator Power Status

Green Voltage Present

Off Voltage Not Present

VLI 1 THROUGH VLI 4

A green LED indicator is provided for each of the four video channel inputs. Video status
associated with each of these LEDs is summarized below.

Video Level Indicator Video Status

Green Proper Input Video Present

Off Input Video Not Detected

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LIFETIME WARRANTY INFORMATION

American Fibertek, Inc warrants that at the time of delivery the products delivered will be
free of defects in materials and workmanship. Defective products will be repaired or
replaced at the exclusive option of American Fibertek. A Return Material Authorization
(RMA) number is required to send the products back in case of return. All returns must
be shipped prepaid. This warranty is void if the products have been tampered with. This
warranty shall be construed in accordance with New Jersey law and the courts of New
Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE

FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR
IMPLIED, WHICH EXTENDS BEYOND THE WARRANTY SET FORTH IN THIS
AGREEMENT. In any event, American Fibertek will not be responsible or liable for

contingent, consequential, or incidental damages. No agreement or understanding,
expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.

SERVICE INFORMATION

There are no user serviceable parts inside the unit.
In the event that service is required to this unit, please direct all inquiries to:

American Fibertek, Inc. Phone: [phone]
120 Belmont Drive Phone: [phone]
Somerset, NJ 08873 FAX [phone]

E-mail: [e-mail]

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