Directly convert device inputs/outputs to MIRRORED BITS^®, IEEE C37.94, or SEL Communications Processor Compatible Messages.

Reduce operating time, add self-testing, and simplify wiring for auxiliary inputs and outputs with a variety of SEL Remote I/O Modules. Improve signal integrity and safety using fiber-optic links instead of wire.

UTC Telecom 2003
Product of the Year

SEL-3094 Interface Converter
Improve safety and security of teleprotection.

Convert from ITU-G.703 or EIA-422 metallic links to IEEE C37.94 Standard fiber-optic links. Use an SEL-3094 Interface Converter at the older metallic interface, and up to 2 km of optical fiber to a C37.94 compliant multiplexer. Or, use an IEEE C37.94 compliant protective relay, optical fibers, and an SEL-3094 Interface Converter at a multiplexer that has only the older metallic interfaces. Or, use an SEL-3094 Interface Converter at both a relay and a multiplexer that are not IEEE C37.94 compliant, to replace the metallic link with a fiber-optic link.
Fiber-optic connections provide isolation from dangerous ground potential rise, prevent induced electrical noise, and eliminate signal ground loop problems.

*Budgetary U.S. Retail, Quantity 1, Base Price = $685
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2800 Fiber-Optic Transceivers/Modems
Communicate 500 meters using two port-powered SEL-2800 Fiber-Optic Transceivers/Modems and Fiber-Optic Cable.

The SEL-2800 Fiber-Optic Transceivers/Modems are compact, data stream-powered devices that completely isolate communications and plug directly onto the 9-pin port they serve.

*Budgetary U.S. Retail, Quantity 1, Base Price = $102
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2810 Fiber-Optic Transceiver/Modem
Communicate 500 meters and send time code using two port-powered SEL-2810 Fiber-Optic Transceivers/Modems and SEL Fiber-Optic Cable.

The SEL-2810 Fiber-Optic Transceivers/Modems provide medium- to long-range EIA-232 communication and demodulated IRIG-B time-code transmission.

*Budgetary U.S. Retail, Quantity 1, Base Price = $132
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2812 Fiber-Optic Transceiver/Modem
Communicate 5 kilometers and send time code using two port-powered SEL-2812 Fiber-Optic Transceivers/Modems and multimode fiber-optic cable.

SEL-2812 Fiber-Optic Transceivers/Modems provide medium range EIA-232 communication and demodulated IRIG-B time-code transmission, using ST connectors and two multimode optical fibers.

*Budgetary U.S. Retail, Quantity 1, Base Price = $250
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2814 Fiber-Optic Transceiver/Modem
Communicate 5 kilometers and transfer hardware flow-control signals using SEL-2814 Fiber-Optic Transceivers/Modems and multimode fiber-optic cable.

SEL-2814 Fiber-Optic Transceivers/Modems provide medium range EIA-232 communication and transfer a control line in each direction, using ST connectors and two multimode optical fibers. Power from port or use external power source and power jack.

*Budgetary U.S. Retail, Quantity 1, Base Price = $250
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2815 Fiber-Optic Transceiver/Modem
Communicate 15 kilometers using two port-powered SEL-2815 Fiber-Optic Transceivers/Modems and Multi-Mode Fiber-Optic Cable.

Like other transceivers/modems from SEL, the SEL-2815's compact package plugs directly into DB-9 serial port connectors and requires no external power source. The SEL-2815 requires only 50 mW of power, which is obtained from the EIA-232 signals. Simply plug in the device, and it transmits full duplex data at the port's baud rate, up to 40,000 bps. Continuous light pulses are issued making functional verification simple with the use of an optical meter.

*Budgetary U.S. Retail, Quantity 1, Base Price = $362
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL 200 µm Multimode Fiber-Optic Cables
Safely connect your EIA-232 communications ports using SEL fiber-optic cable and SEL fiber-optic transceivers/modems.

SEL offers finished 200 µm cables, cut and terminated to your length specification. Or, you can purchase unterminated cable and use simple hand tools to build durable terminations in the field.

SEL 62.5 µm Multimode Fiber-Optic Cables
Safely connect your EIA-232 communications ports using SEL fiber-optic cable and SEL fiber-optic transceivers/modems.

SEL offers finished 62.5 µm cables, cut and terminated with ST^® connectors to your length specification as well as LC-terminated cables in several lengths. Or, you can purchase unterminated cable and use simple hand tools to build durable ST terminations in the field.

SEL 9 µm Single-Mode Fiber-Optic Cables
Safely connect your EIA-232 communications ports using SEL fiber-optic cable and SEL fiber-optic transceivers/modems.

SEL offers finished 9 µm cables, cut and terminated in various lengths.

SEL Fiber-Optic Cable Termination Solutions
Build custom fiber lengths with easy-to-use termination kits.

Purchase unterminated cable and use simple hand tools to build durable terminations in the exact lengths needed for your applications.

SEL-2829 Single-Mode Fiber-Optic Transceiver/Modem
Communicate 23 kilometers using two port-powered transceivers/modems and two single-mode optical fibers.

SEL-2829 Single-Mode Fiber-Optic Transceivers/Modems connect to DB-9 serial connectors and require no external power source. Using two single-mode fibers in a station-to-station cable, communicate full-duplex serial data up to 23 kilometers.

*Budgetary U.S. Retail, Quantity 1, Base Price = $700
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2830 Single-Mode Fiber-Optic Transceiver/Modem
Communicate 80 kilometers using two port-powered transceivers/modems and two single-mode optical fibers.

SEL-2830 Single-Mode Fiber-Optic Transceivers/Modems connect to DB-9 serial connectors and require no external power source. Using two single-mode fibers in a station-to-station cable, communicate full-duplex serial data up to 80 kilometers.

*Budgetary U.S. Retail, Quantity 1, Base Price = $980
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

SEL-2831 Single-Mode Fiber-Optic Transceiver/Modem
Communicate 110 kilometers using two port-powered transceivers/modems and two single-mode optical fibers.

SEL-2831 Single-Mode Fiber-Optic Transceivers/Modems connect to DB-9 serial connectors and require no external power source. Using two single-mode fibers in a station-to-station cable, communicate full-duplex serial data up to 110 kilometers.

*Budgetary U.S. Retail, Quantity 1, Base Price = $1,500
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.

Use the SEL-2126 Fiber-Optic Transfer Switch to Maintain Relay Communications During Bypass Operations

Switch several protection protocols simultaneously (MIRRORED BITS^® communications, line current-differential protection, etc.) communicating through fiber-optic links. The SEL-2126 is a high-speed communications device that senses contact inputs to route data streams between remote and local relays, or between the remote and one or two transfer relays.

*Budgetary U.S. Retail, Quantity 1, Base Price = $2,730
Contact your SEL sales representative today for a quote on the configuration and quantity needed for your application.