First, use 

 Boshi electronic OPT35EX [S] Series RS-232/485/422 / converter for fiber optic repeater: 1, and RS-232/485/422 optical fiber communications relay, which is extended from 2 serial optical communications to achieve Serial optical multi-machine communication, that is, multiple RS-232 or RS-485, RS-422 serial interface access with a fiber optic communications network 3, to achieve a way 2-way RS-232/485/422 to Fiber conversion. OPT35EX [S] is the world's smallest serial / fiber optic repeater converter, serial optical communication represents the current top level of the product. Optical fiber communication with high isolation voltage, electromagnetic interference, anti-lightning and so on. Patented product, Beware of imitations! Patent number: 8256. 

 Second, the hardware installation 

 Boshi OPT35EX [S] fiber optic repeater converter adapter box shape for the DB-25/DB-25 size, use-many-mode ST fiber optic connectors (OPT35EX) or a pair of single-mode ST fiber optic connectors (OPT35EXS). Products as shown above for the DB-9 RS-232/485/422 port pin holder (with terminals), following the 5V power supply (terminal). OPT35EX [S] requires an external 5V DC power (<50mA). OPT35EX [S] serial / fiber optic repeater converter optical receiver (RX) and optical transmitter (TX) in the product label. ST head transmitter used by the other side of the receiver optical fiber access ST head. Attention to maintaining the seat ST fiber converter, fiber optic ST-head cleaning, if not connected, be sure to ST and ST blocks first child with matching rubber plug cover. Are optional SC, FC-type fiber connectors. Boshi Electronics can also provide a variety of supporting fiber, can also provide single-fiber two-way matching. OPT35EX [S] for supporting the provision of mounting brackets. 

 Third, the performance characteristics 

 Boshi electronic OPT35EX [S] the highest rate of fiber optic repeater converter 115.2Kbps. All without any initialization settings! Unique Boshi zero delay automatic conversion transceiver technology, ensure that it meets all of the software! OPT35EX [S] and OPT485EX [S] is one of the advantages compared to: OPT35EX [S] has been built RS -232/485/422 no need for an external port RS-232/485/422 converter, built-in 600W surge protector. 

 Optical interface 
 Double-ST head (or FC, SC head optional) 



 Electrical 

 Interface 
 RS-232 (DB9 pin holder and terminals) 

 Transmission medium 
 Dual Fiber (multimode, single mode) 
 Terminal (RS-485, RS-422) 

 Communications 

 Way 
 Asynchronous RS-232 
 Size and weight 
 DB-25/25 adapter size