1-2 канала 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

Колькасць Fiber партоў: 1

Аптычная даўжыня хвалі:

850нм / 1310нм для мульты рэжыму аптычнага

1310 нм / 1550 нм для одномодового аптычнага інтэрфейсу

Валаконна-Core: Single / Dual ядра валакна

Раз'ём: FC / SC / ST / LC (SFP)

Адлегласць: 20 км-120 км

Тыповая выходная магутнасць:

одномодовое 1310 / 1550nm:> -9dBm

многорежимный 850нм:> - 18dBm

многорежимный 1310nm:> - 25dBm

Адчувальнасць: -28dBm ~ - 40dBm

◆Serial interface 

   Standard

TIA / EIA-232 RS-232 (МСЭ-Т V.28)

TIA / EIA-422 RS-422 (МСЭ-Т V.11)

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

   Serial Interface

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

RS-485, 4 драты: TXD +, TXD-, RXD +, RXD-, Signal Ground

RS-485, 2 драты: Data + (Ці адпавядаюць TX +), дадзеных- (Ці адпавядаюць TX-), Signal Ground

RS-232: RXD, TXD, сігнал зазямлення

◆Working environment

Працоўная тэмпература: -10 ° С ~ 50 ° С

Рабочая вільготнасць: 5% ~ 95% (без кандэнсацыі)

Тэмпература захоўвання: -40 ° С ~ 80 ° С

Вільготнасць пры захоўванні: 5% ~ 95% (без кандэнсацыі)