Overview
     MOD-PRS RS232 passive fiber modem can be used for the transfers of the RS-232 signal by fiber and protracting the distance of communications and resisting the disturbing, and the dependability and the secret of the communications is much better than usual. The RS-232 port is easy to construct the network. It is widely used in industrial control and data gather areas especially for electric automation system and traffic control department 

Features
　◆ Entire transparent communication , the consumer un- necessarily any tests, plug-and-play;
   ◆ Data lines purloin the electric technology, RS-232 interface drivers, unnecessarily external power;
　◆ Unique serial protection circuit, support hotswappable;
   ◆ Connector: DB9
   ◆ Highly stability and reliability of the output optical transmission power
　◆ The device is fully insulated, anti-electromagnetic interference, ground loop interference and lightning damage;
    ◆ Industrial level design, the long time dependability

Specifications
   ◆ RS-232 interface: DB9 hole，TX、RX、GND tri-ring RS-232 interface
　◆ SC、FC optic port are selectable
   ◆ Power：COM port purloin the electric, unnecessarily external power
   ◆ Data rate：0~115.2Kbps auto-negotiation
  ◆ Fiber：SM 9/125μm（MM 62.5/125μm or 50/125μm）
  ◆ Wavelength：1310nm（850nm）
  ◆ Transmitting power：-8.5dbm(-15dbm)
  ◆ Receiving sensitivity：-38dbm(-32dbm)
  ◆ Distance：0-20km
  ◆ Rate of fault code：≤10-9
  ◆ Operating temperature：-20℃ ~ 70℃
  ◆ Humidity：0%~95% (non condensation)
  ◆ Size：90mm×70mm×30mm
  ◆ Weight：73g

Typical Application
       
Order information
      MOD-PRS           Passive RS232 Fiber Modem,20Km,SM
      MOD-RS             RS232/485/422 Fiber Modem, 20Km,SM
  　 MOD-FE1　         FE1 Fiber Modem,20Km, SM 
  　 MOD-V35　         V.35 Fiber Modem, 20Km, SM
      ......