RS232C optical modem,RS232C−RS485modem,RS485 optical modem,RS485 extender,GP-IB extender,optical fiber,RS232C multipulexe

　　

　　・This is an optical relay device that extends twist-pair cable EIA standard
　　 RS-422A or　RS-485　multi-point buses with an optical cable, and transmits
　　 the bus signal both ways.
　　・Because it also transmits bus high-impedance conditions both ways, a two-line
　　　type twist　pair network multiple-step relay that alternately outputs to several
　　　driver buses is possible.
　　・Maximum transmission speed is 3Mbps, and multiple step connection is possible.
　　　In the case of 10Kbps, a maximum of 50 steps can be connected.
　　・Using our unique collision-detection format, it avoids collision stress.
　　・Communication distances are: APF　0.2m〜50m HPCF 0.2m〜800m
　　　PCF 0.2m〜1km
　　・Transmission Ability: 50 step (10Kbps), 7 step (100Kbps)
　　　　　　　　　　　　　　　　 3 step (1Mbps), 1 step (3Mbps)