ODW-631 fibre optic modem

The ODW-631 is a fibre optic modem designed for point to point fibre optic connections between RS-422/485 networks or devices.The ODW-631 is designed for harsh industrial usage as well as road or railway installations meeting industrial level EMC specifications and having a wide operating temperature range.The maximum distance of the fibre link depends on selected transceiver and fibretype.Fibre distances up to 80 km (50 miles) are possible using singlemode fibre.The unit has a retiming function that eliminates the problem of jitter and hence ensures reliable communications in all situations.It is possible to use the ODW-631 in conjunction with the ODW-621 to provide protocol conversion from RS-232 to RS-422/485 as well as the fibre optic link.

Retiming
Data rate up to 1.5 Mbit/s
4-position screw terminal connector
Switch selectable failsafe/termination
2 and 4 wire applications
Redundant power supply inputs
Status interface for fault indication
LED fault indication (Red)
Design for harsh environments
Manchester coded protocol (synchronous mode)
Bi-di transceivers (MM)LC-2, (SM)LC20, LC-40, LC-60
–40°C to +70°C operating temperature
LC-2 Multimode LC connectors, 5 km
LC-15 Singlemode LC connectors, 15 km
LC-40 Singlemode LC connectors, 40 km
LC-80 Singlemode LC connectors, 80 km