Serial Optic Fiber Modem RS232 (DT-SFM-RS232),is a sort of more function and economy RS-232 interface optic fiber MODEM. 

It is the best choice to connect RTU to HOST or SCADA controller. It used Optic fiber as transfer medium, increase the transfer

 function of system. Communication equipment abstain menace effective to lightning strike, surge, electromagnetism disturb 

under the secure environment.Working wavelength:1310nm,Transmit distance: Rs-232 port Multi-Mode 2KM, Single-Mode20KM,Support5VDCinput,consumption2W,L*W*H:100mm*69mm*22mm,Weight:230g.Power Plug:European Standard Plug 

or American Standard Plug is optional.

★Features

⊙Working wavelength: 1310nm

⊙ Internal or external power choice

⊙Support DT-SFM-RS232 interface

⊙Support 5V DC input, consumption 2W

⊙Auto test signal rate, zero delay auto transmit

⊙Asynchronous, point to point, rate up to 120Kbps