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Commercial grade RS-232/422/485 Serial toFiber Converter

● support RS-232 / RS-485 / RS-422 interface
● support asynchronous, point-to-point and point to many transmission;
● automatic detection of signal rate;
● prevent electrical interference and chemical corrosion;
● serial port transmission rate up to 256 Kbps;
● 1500W surge protection and 15kV electrostatic protection;
● support multi-mode 5km (dual fiber) and single-mode 20km (single fiber and dual fiber) product selection;
● multi mode transmission distance up to 5km, single-mode transmission distance up to 120km (customized);


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Product Description

Commercial RS-232 / 485 / 422 serial port optical fiber converter is an optical fiber modem that can provide users with RS-232 / RS-485 / RS-422 serial port point-to-point transparent transmission. It can automatically switch without jumper setting, and can automatically detect the signal rate and automatically forward with zero delay. The product adopts optical fiber transmission, which has many advantages such as isolation protection, good data confidentiality, stable operation and easy maintenance. It effectively avoids the threat of lightning, surge and electromagnetic interference to communication equipment in harsh environment, and can work reliably in harsh and dangerous environment. It can be widely used in various industrial control, process control, traffic control, intelligent community, automatic equipment control and other occasions. It is especially suitable for banks, electric power and departments and systems with special requirements for electromagnetic interference environment. According to the needs, the interface mode of optical fiber can be selected, including SC, FC, St, sc20, etc.

Optical device index
Wavelength: 1310-1550nm
Speed: 155mbps
Transmitted light power: ＞ - 8dB
Receiving sensitivity: ＞ - 24dB
Optical port: SC (FC / St optional)
Data indicators
Standard: comply with EIA RS-232, RS-485 and RS-422 standards
Physical interface: 7-pin industrial wiring terminal
Baud rate: 50 bps to 256 Kbps (support non-standard baud rate)
Simultaneous use of ports: 2
RS232: 3-wire system (RXD, TXD, GND), full duplex, point-to-point communication. The maximum communication distance is 15m
RS485: 2-wire (a, b), half duplex, point to multi master-slave communication. The maximum communication distance is 1219m, and the transmission rate is inversely proportional to the transmission distance
RS422: the maximum communication distance of 4-wire system and full duplex is 1219m, and the transmission rate is inversely proportional to the transmission distance
RS485 circuit index
RS-485: pull-up resistance / pull-down resistance 1 K Ω, 150 K Ω
RS-485: terminal resistance n / A, 120 Ω and 120 K Ω
Power index
Input current: 1A
Input voltage: 5V
Power connector: DC 2.5
Power consumption: < 1.5W
Mechanical index
Shell: aluminum alloy
Installation: Desktop
Work index
Operating temperature: - 20 to 70 ° C
Storage temperature: - 40 to 85 ° C
Relative humidity: 5 to 95% (non condensing)
Service life: ＞ 100000 hours

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