American Fibertek RRM-30 Instruction Manaul Download Page 2

 

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INSTALLATION AND OPERATION INSTRUCTIONS 

 

INTRODUCTION 

 

Thank you for purchasing your American Fibertek RRM-30 which consists of three 
multimode video receivers. Please take a few minutes to read these installation 
instructions in order to obtain the maximum performance from this product. 
 

FUNCTIONAL DESCRIPTION 

The RRM-30 operates as half of a transmitter / receiver pair for the transmission of three 
baseband NTSC, PAL, RS170, or RS343 video signals over three strands of multimode 
fiber optic cable. Each of its three independent optical inputs is designed to operate with 
the MTM-100, RTM-100, or RTM-30 video transmitter. The RRM-30 contains the 
electronics and optics of three RRM-100 units mounted on one printed circuit board to 
save space and reduce cost.  
 
The RRM-30 converts three FM modulated optical inputs into three seperate video 
outputs using an 850 nm wavelength detector for each signal. The M30 Series product is 
designed to operate over an optical loss budget range of 0 to 12 dB with a maximum 
distance of up to 2.5 km. The RRM-30 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 a LED indicator provide for easy installation and monitoring of video 
and dc power.  
 
The RRM-30 is designed for rack mounting only. For a single channel modular stand 
alone version please see the MRM-100. 

 
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. Please note that when installing this card in 
the position directly next to the power supply in the SR-20 subrack, it may be necessary 
to make the signal connections at the rear of the card before fully seating the card into 
its slot.   
 

 

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-30 can be 
inserted into the subrack or removed from the subrack with power applied to the 
backplane. 

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