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LFM series RS-232 / 422 / 485 serial optic fiber MODEM - LFMRS244

Lightem LFM series is a RS232 Fiber Modem that converts the RS232 / 422/ 485 serial signal over Fiber Optics interface. LFM series modem supports asynchronous RS-232/422/485 communication interface (Serial port communication rate up to 921.6KBPS). It is used to
connect remote terminal unit (RTU) to a host (HOST) or a distributed data acquisition system (SCADA) controllers via Multimode and Singlemode FIber.

Features

Support RS-232/RS-485/RS-422 ports
Support synchronization, point-to-point, point-to-multiple transmission
Automatic signal detection rate
Prevent electrical interference and chemical corrosion
Serial port transmission rate up to 256 KBPS
1500W surge protection, 15KV electrostatic protection
Support multi-mode 2KM (dual fiber), single mode 20KM (single fiber, dual fiber) product selection
Multi-mode transmission distance up to 2KM, single mode transmission distance up to 120KM (customized)

Specifications

Parameters	Values
Wavelength	1310-1550nm
Rate	155Mbps
Tx power	＞-8db
Rx sensitivity	＞-24db
Fiber connector	SC（FC/ST optional）
Data index Standard	Meets EIA RS-232，RS-485，RS-422 standards
Physical interface	7-Pin industry terminal
Power Input voltage	5V
Power consumption	<1.5W
Chassis	Aluminum alloy
Product net weight	0.25kg
Operating temperature	-20°C ~75°C
Storage temperature	-40°C ~85°C
Humidity	5 to 95%（non-condensing）
Size	1059025 mm

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