E1/V.35 fiber modem, RS232/RS485 fiber modem,FBOM1000 series Fiber Modem can modulate G.703 E1 signal or V.35 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 fiber modem can be used together. Both of them are widely used in extending user interface in ATM or DDN.

2.Features
Realize E1 or V.35 signal transmitting over fiber; transmitting distance can reach 120Km without repeater
E1 interface: Framed & Unframed optional, 75 & 120ohm selectable
V.35 interface: support N64K bit rate,DTE & DCE optional
Three loop back mode selectable: Local loop back, diagnostic loop back, remote loop back.
Provide bit-error test and time-slot follow by remote equipment, which brings a lot advantage in setting and debug
Multiple clock selection: Local clock, Fiber line clock, E1 recovery clock, V.35 line clock
Standalone and Chassis optional

3.Specifications
3.1Fiber interface
Rate: 4Mbps
Line code: 1B1C
Wavelength: 850nm/1310nm/1550nm
Connector: FC/SC/ST
Distance: 0-120Km

3.2V.35 interface:
Compliant with V.35 standard
Rate: n64Kbps, n=132
Physical connector: DB25 female jack
DCE & DTE optional

3.3E1 interface
Compliant with ITU-T G.703, G.704, G.823
Rate: 2.048Mbps50ppm
Impedance: 75 ohm unbalanced & 120 ohm balanced
Physical connector: BNC for unbalanced & RJ45 for balanced
Framed & unframed selectable
Support PCM30 & PCM31

3.4Power
AC Input: 100~240V
DC Input: -48V

3.5Environment
Operation Temperature: 0~50
Operation Relative Humidity: 0~90%
Store Temperature: -20~65
Store Relative Humidity: 0~95%

5.Oder Information
P/N Description
F9-E1 E1 fiber modem
F9-V.35 V.35 fiber modem
FC-416 16 Slots Chassis, Supply two Powers
FC-416M Management Module for the FC-416 Chassis