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© Copyright 2007, American Fibertek, Inc. 0123JD

Instruction Manual

MT-780C

Eight Channel Video Transmitter

2

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek MT-780C multimode eight 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-780C operates as half of a transmitter / receiver pair for the transmission of eight

channels of high performance digital NTSC, PAL, RS170, or RS343 video signals. The MT-

780C is designed to operate with the MR-780C or RR-780C video receiver over one multimode

fiber optic cable.

The MT-780C multiplexes eight video input signals into a high speed serial data stream. This

serial data stream modulates a laser at 1310 nm wavelength. The 780C Series product is

designed to operate over an optical loss budget range of 0 to 12 dB at a maximum distance of

1Km. Refer to the data sheets for detailed performance specifications.

This unit is contained in a rugged aluminum housing with internal dc voltage regulation. The

detachable terminal blocks and LED indicators provide for easy installation and monitoring of

video and power.

The MT-780C is designed for mounting as a modular stand alone unit. For a rack mounted

version please see the RT-780C.

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.

3

This unit requires a +12VDC power source for proper operation. The DC input is diode

protected. In the USA and in Canada an American Fibertek PS-12D is supplied with this unit.

The negative side of the power input is directly connected to ground. ANSI/NFPA 70 Class 2

wiring is recommended.

POWER CONNECTION

Power is supplied to the unit via a two pin terminal connector on the right side of the unit. Follow

the label on unit for proper orientation of +12 volt dc and ground.

FIBER CONNECTION

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

VIDEO INPUT CONNECTIONS

The video input connections are made via BNC connectors on the right side of the unit. The

video input should be connected to an appropriate 75Ωbaseband 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.

afi

american fibertek

MT-780C STATUS INDICATORS

The MT-780C transmitter provides the following LED status indicators described below to aid in

installation and troubleshooting:

VLI 1 THROUGH VLI 8

A bi-color LED indicator is provided for each of the eight video inputs to the MT-780C. DC

power and video status associated with each of these LED’s are summarized below.

Video Presence LED DC Power Status Video Status

Green On Proper Input Video Present

Red On Input Video Not Detected

Off Off Check Power Supply

4

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: (877) 234-7200

120 Belmont Drive Phone: (732) 302-0660

Somerset, NJ 08873 FAX (732) 302-0667

E-mail: [email protected]

This unit complies with 21

CFR 1040.10 and 1040.11