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INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
Thank you for purchasing your American Fibertek RRM-1200B multimode mini video receiver. Please
take a few minutes to read these installation instructions in order to obtain the maximum performance
from this product.
FUNCTIONAL DESCRIPTION
The RRM-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 MTM-1200B or RTM-1200B video
transmitter over a single multimode fiber optic cable.
The RRM-1200B converts an optical fiber input into a single video output using a 1300 nm wavelength
detector. The RRM-1200B also converts an electronic camera control signal into an optical control
signal returning on the same fiber using an 850 nm wavelength source. The M1200B Series product is
designed to operate over an optical loss budget range of 0 to 12 dB. The RRM-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
indicator provide for easy installation and monitoring of video and dc power.
The RRM-1200B is designed for rack mounting only. For a modular stand alone version please see the
MRM-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 RRM-1200B can be inserted
into the subrack or removed from the subrack with power applied to the backplane.
VIDEO OUTPUT CONNECTION
The video output connection is made via a BNC connector on the back of the unit. The 75
Ω
video
output can be looped through typical baseband video inputs of switchers, recorders and other
equipment as required. For proper operation, the output must be terminated with 75
Ω
. 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.
