IEEE C37.94 Standard Conversion
Converts electrical teleprotection interfaces to the IEEE C37.94 optical standard. Connect an SEL-3094 to an ITU-T G.703, EIA-422, EIA-485, or EIA-232 device, and use up to 2 km of optical fiber to link to a C37.94 multiplexer. Similarly, replace a G.703, EIA-422, EIA-485, or EIA-232 wire link with fiber, connecting a noncompliant multiplexer to a teleprotection device through a pair of SEL-3094 interface converters.

Easy Application
All settings are made with ten control switches. LEDs indicate the state of inputs, outputs, and the communications link

High Speed
Uses one 64-kilobit time slot in a digital multiplexer.

Improved Safety and Isolation
Fiber-optic connections provide isolation from dangerous ground potential rise, prevent induced electrical noise, and eliminate signal ground loops.

Universal Power
Power supply operates from 18 to 300 Vdc and 85 to 264 Vac.

Dual Side-By-Side Kit
Order the SEL-9921 combination package for two SEL-3094 Interface Converters connected by a side-by-side mounting bracket for a standard 19 inch rack. The bracket enables removal and installation of one SEL-3094 without taking the other one out of service, so one converter and communications circuit of a dual primary or primary-backup scheme remains in service while you are working with the other one.