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INSTALLATION AND OPERATION INSTRUCTIONS 

 

INTRODUCTION 

 

Thank you for purchasing your American Fibertek Series 840C multimode four channel video 
multiplexer. Please take a few minutes to read these installation instructions in order to obtain the 
maximum performance from this product. 
 

FUNCTIONAL DESCRIPTION 

The 840C Series units operate as a transmitter / receiver pair for the transmission of four simultaneous, 
real time baseband NTSC/PAL video signals over one multimode fiber optic cable.  
 

 

The MRT-840C transmitter accepts up to four video inputs and multiplexes these signals onto a single 
optical output port for connection to the fiber transmission system. Correspondingly, the MRR-840C 
receiver converts the optical signal to four independent video output signals. 
 
The 840C Series units operate on 50 um or 62.5 um multimode fiber. Refer to the data sheets for 
detailed performance specifications. 
 
The individual units may be configured for rack mounting or wall mounting depending upon the position 
of the included mounting hardware. 

 
INSTALLATION 

THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND SHOULD 
CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA AND LOCAL CODES.  
 
To install the MRT-840C or MRR-840C it is first necessary to 
mount the rack flanges to the unit. 
 
For rack mounting the ears are installed on the sides of the unit 
with the surfaces that have oval holes flush with the front of the 
unit as in Figure 1. Mount the ears with the #10 flathead screws 
provided. To mount in the rack cabinet, use mounting screws that 
are appropriate for the rack cabinet being used. 
 

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