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Industrial 8-Port RS485 to Fiber Media Converter

View : 802
Type : Serial to Fiber Converter
Description :

The RS485 to fiber media converter provides 8*RS232/422/485 in the optical fiber transmission and supports point-to-point communications.


The RS485 to fiber media converter provides 8*RS232/422/485 in the optical fiber transmission.

It supports point-to-point communications, and on this basis, the networking is a more complex network topology, with a self-healing ring network protection.

The device breakthroughs contradictory legacy serial interface communication distance and speed and solves electromagnetic interference, ground loop interference, and lightning damage problems, greatly improving the reliability of data communications, security, and confidentiality.


The RS485 to fiber media converter provides 8 independent serial ports (RS232/422/485 optional) channels, with physical isolation between channels.

RS232/485/422 are three optional data interfaces. RS232 supports 3-wire RS232 (TXD/RXD/GND) and supports flow control (CD/DSR/CTS).

The RS232/485/422 channels can transmit asynchronous serial data with adaptive baud rates ranging from 0 to 115200bps.

The serial port interfaces are protected against lightning according to the IEC61000-4-5 standard, with a differential mode of 6KV, an impedance of 2Ω, and a common mode of 6KV and an impedance of 2Ω.

Supports internal isolation and redundant dual power inputs.

The power supply has overload protection and reverse connection protection.

Complies with industrial electromagnetic compatibility requirements.

Strong lightning protection capabilities, including protection against lightning strikes, induced high voltage, and surges.

The enclosure is made of anodized aluminum alloy, with an IP40 protection level, capable of withstanding harsh environments.

 Mounted on a DIN rail or wall.

This RS485 to fiber media converter is available in a wide temperature range, operating from -40°C to +85°C.


● Fiber

Fiber Type: Single-mode or Multi-mode

Fiber Connectors: FC/SC/ST/LC(SFP)

Wavelengths: 850nm/1310nm (Multi-mode); 1310nm/1550nm (Single-mode)

Maximum Transmission Distance without Relay: 20~120Km

Typical Transmit Power:

Single-mode 1310/1550nm: ≥-9dBm

Multi-mode 850nm: -18dBm

Multi-mode 1310nm: -25dBm

Receive Sensitivity Range: -28dBm to -40dBm


● RS232/422/485 Interface 


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-
RS-485 4 wires: TxD+ TxD- RxD+ RxD-
RS-485 2 wires: A (corresponding to Txd+) B (corresponding to Txd-) Signal Ground
RS-232: RXD TXD Signal Ground


● Working Environment

Working temperature: -40°C ~ 85°C

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

Storage temperature: -40°C ~ 85°C

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




Function Description

8 * Channel Serial to Fiber Converter

Port Description

1 *  Fiber port;  8 * Serial Data


Power supply: AC180V ~ 260V; DC –48V; DC +24V

Power consumption: ≤10W


Product Size: 133X120X40mm (WXDXH)



Application of RS485 to fiber media converter

application of Industrial Grade 8 Channels Serial to Fiber Converter


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