1-2 kanál RS232 / RS485 / RS422 Fiber Modem (Mini)

    This device is based on FPGA, which supports asynchronous RS232/RS485/RS422 communication interface Fiber Modem. The device is the best choice of connecting to the remote terminal unit (RTU) to a host (HOST) or a distributed data acquisition system (SCADA) controllers, with very high performance price ratio. Using ordinary multi-mode fiber, effective communication distance is up to 4KM, while using ordinary single-mode fiber, effective communication distance up to more than 40KM. Serial port communication rate is up to 921.6KBPS. As a result of the fiber as a transmission medium, you can completely avoid the threat to communication device under the adverse environment, such as lightning, surges and electromagnetic interference, at the same time it saves investments of the original lightning surge protection devices that using copper .

◆ Based on self -copyright IC 
◆ Have the ability to automatically detect the baud rate of serial port signal
◆ Automatically test the reason of the device when the device is power off or fiber line is broken. And then  indicate on the LED
◆ Serial port interface lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV,  
◆ Impedance (2 Ohm), CM(Common Mode): 6KV, Impedance (2 Ohm) standard Support SNMP Network Management
◆ Serial channel can transmit adaptable serial data asynchronously 300-921.6Kbps baud rate

◆Fiber

Počet vlákien portov: 1

Optická vlnová dĺžka:

850nm / 1310nm pre multi- režim optickej

1310nm / 1550nm pre jednovidové optické rozhranie

Fiber Jadro: Single / Dual vláknovej jadro

Konektor: FC / SC / ST / LC (SFP)

Vzdialenosť: 20 km, 120 km

Typický výstupný výkon:

single mode 1310 / 1550nm:> -9dBm

multi-mode 850nm:> - 18dB

multi-mode 1310nm:> - 25dBm

Citlivosť prijímača: -28dBm ~ - 40dB

◆Serial interface 

   Standard

EIA / TIA-232 RS-232 (ITU-T V.28)

EIA / TIA-422 RS-422 (ITU-T V.11)

EIA / TIA-485 RS-485 (ISO / IEC8284)

   Serial Interface

RS-422: TXD +, TXD-, RXD +, RXD-, Signal Ground

RS-485 4 vodiče: TXD +, TXD-, RXD +, RXD-, Uzemnenie signálu

RS-485 2 vodiče: Údaje + (Zodpovedajú TX +), dát (Zodpovedajú TX-), signálová zem

RS-232: RXD, TXD, Signal Ground

◆Working environment

Pracovná teplota: -10 ° C až 50 ° C

Pracovná vlhkosť: 5% ~ 95% (bez kondenzácie)

Skladovacia teplota: -40 ° C do 80 ° C

Skladovacia vlhkosť: 5% ~ 95% (bez kondenzácie)