Securely transfer contacts through high-speed IEEE C37.94 optical fiber interface. Use the SEL-2595 Teleprotection Terminal to send and receive up to eight relay contacts directly over a pair of optical fibers or through a digital T1 or SONET multiplexer.
The SEL-2100 Logic Processor interconnects as many as 15 MIRRORED BITS® devices. Combine the resulting 120 inputs and outputs using SELOGIC® control equations to implement fast, flexible bus protection, bus sectionalizing, and breaker failure protection.
The SEL-2505 Remote I/O Module has eight digital inputs, eight digital outputs, and a fiber-optic communications port. Use two optical fibers instead of 32 wires between outdoor or remote equipment and the control building to reduce costs, improve safety, and boost reliability.
The SEL-2506 Rack-Mount Remote I/O Module has eight digital inputs, eight digital outputs, and a fiber-optic communications port. Connect an SEL-2506 to a fiber-optic port or transceiver on a protective relay to add digital I/O. Or, wire the SEL-2506 I/O to relay I/O to add SEL Mirrored Bits® teleprotection.