FME series fiber optical modem with two types, FMGE with E1 interface, and FMVE with V.35/V.24/RS232 interface. Single fiber for WDM can be optional.

FME Series Fiber Modem can modulate  E1/G.703 signal or V.35 or V.24/RS232 signal to single-mode or multimode fiber which extend the transmitting distance of E1 signal greatly.E1 signal support framed and unframed mode.When in framed mode,continuous or discontinuous time-slot can be selected,E1 fiber modem and V.35 or V.24/RS232 fiber modem can be used together.Both of them are widely used in extending user interface in ATM or DDN.The DIP switch on the rear panel can be set work mode and transmission rate,meanwhile the rate of slave modem can automatically follow master modem( the rate of the slave modem not need to be set),so you can administrate the remote equipments in networks.

*Realize E1 or V.35 or V.24/RS232 signal transmitting over fiber transmitting distance can reach 100Km without repeater
*Frame mode support PCM30/PCM31
*Single mode and multi mode optional
*Single fiber and dual fiber optional,SC/FC/ST optional
*E1 interface:Framed & Unframed optional,75 & 120ohm selectable
*Support CRC4
*For data interface,V.35 and V.24/RS232 optional
*V.35 interface:support N×64Kbps
*Provide analog and digital loopback and remote digital loopback test
*Provide bit-error test and time-slot follow by remote equipment,which brings a lot advantage in setting and debug
*Supports internal clock,external clock and slave clock
*Comprehensive LED indicators on front panel,convenient for the diagnosis of equipment working state
*-48V DC & 220V AC power supply optional
 

Fiber interface
Rate:150Mbps
Wavelength:850nm/1310nm/1550nm
Connector:FC/SC/ST
Distance:0-100Km

V.35,V.24/RS232 interface
Comply with V.35,V.24/RS232 standard
Rate:N*64Kbps(N=1～32)
Physical connector:DB25 female jack,V.35 via external adapter
Work mode:DCE

E1&FE1 interface
Comply with ITU G.703,G.704,G.706,G.823
Rate:2.048Mbps;N*64Kbps(N=1~31)
Code type:HDB3
Impedance:75ohm unbalanced & 120ohm balanced optional
Physical connector:BNC coaxial  for  unbalanced
                                    RJ45 twisted pair for balanced

Power supply
AC power:220V±10%,50Hz
DC power:-48V(optional)
Power:5W

Environment
Temperature:0～40℃
 Humidity:0～95% RH