FRM-220 Media converter serial to FO

FRM-220 Media converter serial to FO

Transmits asynchronous data over fiber optics from 2 to 120 km
Adjustable interfaces: RS232, RS485
Data rates up to 256 Kbps (RS232) and 1 Mbps for RS485)
RS-232 adjustable for data or data plus handshake transmission
Supports remote in-band management, IP based web GUI, Telnet, SNMP via NMC card in 19″ rack

With the FRM220-Serial media converters, asynchronous data terminals with speeds up to 1 Mbps and different interfaces (RS232, RS485) can be connected via FO.

If the FRM220-Serial is used together with the 19-inch rack and a network management card, the devices can be monitored and configured locally or remotely via SNMP or in-band management.

The devices are available in different housings and for further distances. Please contact us – we will be happy to advise you!


Single module in top-hat rail housing

Fiber optic interface

SFP modules available in different versions

Serial interface

6 pin screw/plug connection
RS232 – data
RS232 – data + RTS/CTS
RS485 2-wire
Data rate: RS485: up to 1.024 Kbps, RS232: up to 256 Kbps
Standard EIA/TIA RS485, RS232

Power supply

12VDC: < 4W
module: 12VDC
DIN rail: 12-60 VDC
Desktop unit: 230 VAC/ 24VDC/ 48VDC


155 x 88 x 23 mm (D x H x W) without top hat rail clamp
top hat rail mounting in metal housing
IP standard: IP30
Temperature: Temperature: -20 – +70°C

The transmission of my personal data is voluntary. I have the opportunity to withdraw my data at any time. My data is stored exclusively for the purpose of processing my request. A passing on to third does not take place.

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