Four Wires Automatic Switch
The device can use technology to switching 4-way signals from BRI and PRI multiplexer’s to TA equipment, to realize full redundant service access function.
Main features are full redundancy of all parts – source signals, power supplies and s.o.
One set includes tree parts – ‘Unit 1’, ‘Unit 2’ and ‘Unit 3’.
All parts are designed to be simple and easy to use.