Fiber-Span LLC FS31X-85-C ユーザーズマニュアル

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                                  FS31LX-XX and FS31X-85-C 

Fiber Optic RF Repeater System 

5.1 General 
 

 All unused RF Terminals must be terminated with a 50 Ohm load.  All unused Optical 
Terminals must be protected using dust cover cap.  When installing fiber optic cables, 
remove dust covers, clean optical connector with optical grade alcohol, align FC/APC 
connector KEY and hand tighten. Do not over tighten. 
 

 

Figure 1.  FS31LM-01-LMC  Single Fiber Transceiver Unit 
 
 
 

 

 
 

 
 
 

 
 

The FS31LM-01-LMC Fiber Transceiver Unit (FTU) is a 19” standard 1U subrack.  
The FTU requires AC Power (90 to 220 VAC, 50-60 Hz).  The AC interface is a 
standard IEC Power socket.  A US 120V AC Line Cord is supplied with each FTU.  
Mount Fiber Transceiver Unit in close proximity to the BSU interfaces to minimize 
cable lengths. 
 
Make all RF connections and terminate all unused RF connections before applying 
AC Power. 
 

 

 
 
 

Interface for Uplink Receiver 1 

Interface for Downlink Transmitter 1

Main Power Indicator

RF OUT 

Optical 
Input 

RX manual 
gain control 

RF INPUT

TX 
Optical 
Output 

Received  LED 
Optical Power 

RX Dry Contact 
Relay Normally 
Open 

TX Dry 
Contact 
Relay 
Normally 
Open 

TX  LED 
Overcurrent 
Indicator 

Power

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