31 Channel RS232/422/485 to Fiber Converter

This device provides 31 channels of RS232/485/422 transmission over fiber optic, which breaks the contradiction between the traditional serial interface communication distance and communication rate. It also solves the problems of electromagnetic interference, ground loop interference, and lightning damage, greatly improving the reliability, security, and confidentiality of data communication. It can be widely used in various industrial control, process control, and traffic control applications, especially suitable for banks, power systems, and departments or systems with special requirements for electromagnetic interference environments. The RS232/RS485/RS422 channels can adaptively transmit asynchronous serial data with a rate range from 0 to 115200 baud rate.

● This device provides 31 serial interfaces, each of which can be RS232/RS485/RS422 type.

● It is capable of automatically detecting the baud rate of the serial signal.

● The serial interface meets the IEC61000-4-5 (10/700μS) standard for lightning protection, with a differential mode of 6KV impedance (2Ω) and a common mode of 6KV impedance (2Ω).

● The serial ports can adaptively transmit asynchronous serial data with a baud rate range of 300-57.6Kbps, supporting various baud rate requirements.

● The optical interface supports 3 fiber optic transmission modes: multi-mode dual fiber, single-mode dual fiber, and single-mode single fiber, with optional SC/ST/FC/LC interfaces.

● It has a built-in power supply with multiple power options, including AC220V, DC-48V/DC+24V/DC+V12, etc., and supports dual power supply modes such as AC+DC, AC+AC, DC+DC, etc.

● Fiber

Optical Fiber: Single/Dual Fiber

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

Wavelength: 850nm/1310nm (multi-mode); 1310nm/1550nm (single-mode)

Transmission Distance without Relay: 20-120Km

Typical Transmit Power:

Single-mode 1310/1550nm: ≥-9dBm

Multi-mode 850nm: -18dBm

Multi-mode 1310nm: -25dBm

Receiver Sensitivity Range: -28dBm ~ -40dBm

● Serial Port

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

    Physical Interface: RJ45

● 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)