New Adapter - Converts SEL Relay EIA-485 Ports to Fiber-Optic Links

The SEL-9220 Fiber-Optic Adapter for SEL-300 Series Relays is now available. The SEL-9220 mounts directly to the EIA-485 port on the relay connector and converts the EIA-485 port to a dedicated point-to-point fiber-optic link.

The SEL-9220 is compatible with SEL-2812 Fiber-Optic Transceivers with IRIG-B and built-in fiber-optic interfaces on a variety of SEL devices. 

It uses one pair of optical fibers to communicate full-duplex serial data plus IRIG-B time to coordinate device clocks. It can improve safety and signal integrity. It is easy to apply, and it can be used for protection, automation, and other applications.

Relion advanced protection & control.
BeijingSifang June 2016