RS422 Optical Fiber Modem

Description

Product function:

The fiber modem is RS422 to fiber converter which realizes transmission of the RS422 signal on fiber. This product has solved the problem of contradiction between communication distance and communication rate of RS422 port. At the same time, it also has solved the problem of electromagnetic interference, earth link disturbance and thunder/lightning destruction, thus greatly enhancing reliability, security and privacy of data communication. It can be widely used in various kinds of situations such as industrial control, process control and transportation control, and especially suited in bank, electric power as well as departments and systems which have special request to the electromagnetic interference environment.

Features:

●   Based on self copyright IC.

●   Serial date creates receive and send signal automatically.

●   RS232/RS485/RS422 interface can be optional by dip switch.

●   Serial port supports 0-115.2KBps baud rate auto-negotiation.

●   Combination of PDH technology and digital lock loop clock technology.

●   Unique serial port for circuit protection, supporting hot-plugging.

●   Data transmission is stable and reliable with integrated light-receiving and transmitting module.

●   Complete surface paste and install craft, industrial grade design, and production-runs with piece-pasting machine.

Parameter and Specifications:

●   Optical interface:

Wavelength:single-mode 1310nm/1550nm/multi-mode 850nm/1310nm for option

Fiber core number: double core/single core for option

Sending consumption:-9dBm/-5dBm

Transmitting range: 0-50km/120km for option

Receiving sensitivity: <-36dBm (BER <10-11)

Connector:SC/FC/ST

RS232 port Rate:asynchronous mode:0-115200bps auto-negotiation

Characteristic:  satisfies ITU-T V.24 V.11 standard

Connector:      RJ45

●   Environment

The device operate temperature range wide, can work normally and stable in different environments.

Operate temperature: 0C~50C

Relative humidity: 95% (no condensation)

No causticity and impregnant gas, no rising dust, and no strong magnetic field disturbing.

●   Power supply

Use module power supply as following for option, working voltage range wide, good anti-disturb and isolation, work stable.

DC-48V: voltage range -36V~-72V

AC220V: voltage range 175V~265V

power consumption: <5w

●   Dimension: 85(W)×121(D)×27(H)mm