1 Channel Serial to Fiber Converter | RS485/422/232 over Fiber | Desktop Type

This device is based on FPGA, which supports asynchronous RS-232/422/485 communication interface. The device is the best choice for connecting the remote terminal unit (RTU) to a host (HOST) or a distributed data acquisition system (SCADA) controller, with a very high-performance price ratio. Using ordinary multi-mode fiber, the effective communication distance is up to 4KM, while using ordinary single-mode fiber, the effective communication distance is up to more than 40KM. The 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 devices 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 use copper.

● Based on self-copyright IC;

● Support 3 interfaces RS232, RS422, RS485, you can only use one, cannot use the three interfaces at the same time;

● Can automatically detect and control RS485 data flow without handshake signals to control the flow direction of data;

● Have the ability to automatically detect the baud rate of serial port signal;

● Automatically test the reason for the device when the device is powered off or the fiber optic line is broken, and then indicate on the LED;

● Support SNMP Network Management for the chassis system;

● Serial port can transmit adaptable serial data asynchronously at 300 Kbps-921.6Kbps baud rate;

●  Serial port lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV, Impedance (2 Ohm), CM (Common Mode): 6KV, Impedance (2 Ohm) standard.

● Fiber

Multi-mode Fiber

50/125um, 62.5/125um,

Maximum transmission distance: 5Km @ 62.5/125um single mode fiber, attenuation (3dbm/km)

Wave Length: 820nm

Transmitting power: -12dBm (Min) ~-9dBm (Max)

Receiver sensitivity: -28dBm (Min)

Link budget: 16dBm

Single-mode Fiber

8/125um, 9/125um

Maximum transmission distance: 40Km

Transmission distance: 40Km @ 9/125um single mode fiber, attenuation (0.35dbm/km)

Wave Length: 1310nm

Transmitting power: -9dBm (Min) ~-8dBm (Max)

Receiver sensitivity: -27dBm (Min)

Link budget: 18dBm

● 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 wires: TXD+, TXD-, RXD+, RXD-, Signal Ground

    RS-485 2 wires: Data+(Correspond TX+), Data-(Correspond TX-), Signal Ground

    RS-232: RXD, TXD, Signal Ground

● Working Environment

Working temperature: -10°C ~ 50°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ 80°C

Storage Humidity: 5%~95 % (no condensation)