American Fibertek RTM-1200B User Manual

Video Transmitter With

Manchester / Bi-phase Data

Instruction Manual

RTM-1200B

INSTALLATION AND OPERATION INSTRUCTIONS

INTRODUCTION

Thank you for purchasing your American Fibertek RTM-1200B multimode mini 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 RTM-1200B operates as half of a transmitter / receiver pair for the transmission of baseband NTSC, PAL, RS170, or RS343 video signals with Manchester / Bi-phase return code for American Dynamics / Bosch systems. It is designed to operate with the MRM-1200B or RRM-1200B video receiver over a single multimode fiber optic cable.

The RTM-1200B converts a single video input into an optical output using a 1300 nm wavelength source. The RTM-1200B also converts an optical control signal returning on the same fiber into an electronic camera control signal using an 850 nm wavelength detector. The M1200B Series product is designed to operate over an optical loss budget range of 0 to 12 dB. The RTM-1200B operates on 50 um or 62.5 um 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 LED indicators provide for easy installation and monitoring of video and dc power.

The RTM-1200B is designed for rack mounting only. For a modular stand alone version please see the MTM-1200B.

INSTALLATION

THE INSTALLATION OF THIS UNIT SHOULD BE MADE BY A QUALIFIED SERVICE PERSON(S) AND MUST CONFORM TO ALL 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 RTM-1200B can be inserted into the subrack or removed from the subrack with power applied to the backplane.

VIDEO INPUT CONNECTION

The video input connection is made via a BNC connector on the back of the unit. The video input should be 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.

FIBER CONNECTION

The fiber optic connection is made via a ST connector located on the back of the unit. Be sure to allow sufficient room for the required minimum bend radius of the fiber cable used.

+ 2 hidden pages