L7581 Description
The L7581 Ringing Access Switch is a monolithic solid-state device that provides the switching functionality of a 2 form C switch. The L7581 is designed to provide power ringing access to tip and ring in central office, digital loop carrier, private branch exchange, digitally added main line, and hybrid fiber coax/fiber-in-the-loop analog line card applications. The L7581 has three states:.