Miniature RS-485 Fiber Optic Modem

• Converts from RS-485 to fiber
• Asynchronous transmission up to 115.2 kbps
• Full duplex over 4-wire or half duplex over 2-wire
• V.54 diagnostics
• LED indicators for status display

• Enables linking various process control systems in utilities and enterprise applications

Long-distance connection to remote terminal units

The FOM-485 is an asynchronous miniature fiber optic modem that transmits RS-485 signals over fiber optic cables. The FOM-485 is used in utility applications where there is a need to connect the main controller to a remote terminal unit (RTU).

The modem allows connection of up to 32 RTUs to a single host, at a wide range of data rates up to 115.2 kbps.

The product supports full duplex transmission over 4-wire or half duplex over 2-wire cables. It supports diagnostic capabilities complying with the ITU V.54 standard.

The modem has six LED indicators to display the status of the modem: TD, RD, DCD, RTS, TEST, and ERR.