Fiber-Optic Transfer Switch

SEL-2126 Fiber-Optic Transfer Switch

Quickly switch as many as 12 fiber-optic ports to reroute one or two digital communications links simultaneously. For general-purpose industry applications, the SEL-2126 Fiber-Optic Transfer Switch allows high-speed transparent communications and switching between different devices communicating through the optical IEEE C37.94 interface.

For power protection applications, use the SEL-2126 for redirecting protection data streams during circuit breaker or substation bypass operations. The SEL-2126 maintains high-speed line protection while rerouting local and remote fiber communications between six feeders and as many as two transfer relays.

Features

• Redirect communications between 12 fiber-optic ports and as many as two transfer ports
• Transfer multiple communications protocols simultaneously
• Maintain high-speed data communications
• Communicate transparently between multiple vendor’s teleprotection and multiplexer equipment using the fiber-optic IEEE C37.94 interface
• Worldwide, ten-year warranty

Applications

• Preserve active fiber-optic communications links during bypass or maintenance operations, rather than disabling them
• Perform local or remote device testing by transferring both local and remote optical ports to the transfer ports
• Use the 16 digital inputs to control fiber-port routing, and use the two output contacts to report system status
• Transfer protection communications during circuit breaker bypass operations to as many as two transfer relays simultaneously on main-bus/transfer or single-breaker double-bus configurations.
• Transfer communications during substation-bypass operations, three-terminal line applications, and to maintain primary and backup communications links.

Main-Bus/Transfer-Bus Application Diagram

Enlarge diagram

Accessories

	SEL-3094 Interface Converter Converts electrical teleprotection interfaces, ITU-T G.703, EIA-422, and EIA-485 to the IEEE C37.94 optical standard.
	SEL-2894 Interface Converter Converts asynchronous EIA-232 serial communication interfaces to the IEEE C37.94 optical standard.

Ordering Options
Description	Part Number	Price
SEL-2126 Horizontal rack mount, 125 Vdc control inputs.	21260HXC4XX	$2,730
SEL-2126 Horizontal panel mount, 125 Vdc control inputs.	212603XC4XX	$2,730
SEL-2126 Horizontal rack mount, 220 Vdc control inputs.	21260HXC5XX	$2,730
SEL-2126 Horizontal panel mount, 220 Vdc control inputs.	212603XC5XX	$2,730

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