Products

Use the SEL-2126 Fiber-Optic Transfer Switch to maintain relay communications during bypass operations.

Communicate 500 meters with port-powered fiber-optic transceivers / modems.

Communicate up to 500 meters with port powered fiber-optic transceivers

Communicate up to 4 kilometers with port powered fiber-optic transceivers

Communicate up to 4 kilometers with port powered fiber-optic transceivers.

Communicate 2 to 15 kilometers with port-powered fiber-optic transceivers.

Communicate up to 500 meters on multidrop and point-to-point EIA-485 networks.

Communicate up to 4 kilometers on multidrop and point-to-point EIA-485 networks

Communicate up to 23 kilometers with port-powered single-mode fiber-optic transceivers.

Communicate from 16 to 80 kilometers with port-powered single-mode fiber-optic transceivers.

Communicate from 16 to 110 kilometers with port-powered single-mode fiber-optic transceivers. 

Connect EIA-232 devices to an EIA-485 network with tough, flexible SEL-2886 EIA-232 to EIA-485 Interface Converter.

Adds Ethernet connectivity to an SEL device using its EIA-232 serial port.

Convert asynchronous EIA-232 serial communications interfaces to the IEEE C37.94 optical standard.

Isolate EIA-232 and IRIG-B signal lines to reduce signal-ground current induced by adjacent high-current conductors.

Carry an SEL-2924 for an always-secure wireless EIA-232 connection.

Avoid exposing personnel to hazardous conditions by enabling them to control and monitor equipment from their trucks or other safe locations.

Instead of unplugging your modem, establish strong access controls with the SEL-3025 and use powerful AES-128/256 and SHA-1/256 to encrypt and authenticate serial links with the Secure SCADA Communications Protocol (SSCP).

Adds dial-up access to devices in harsh utility and industrial environments.

Use one pair of fibers for full-duplex serial communications plus IRIG-B time synchronization.