Power supplies for subscriber line interface circuits
Eddie Beville
Abstract
Power supplies for subscriber line interface circuits (SLICs) are described.
Keywords
Subscriber line interface circuit
SLIC
LT1171
LT1269
As the demand for worldwide networking grows, so will the need for advanced data transmission products. In particular, ISDN services have become popular because of the recent development of the Internet. ISDN provides higher speed data transmission than standard modems used in PCs. Also, ISDN supports the standard telephone interface (voice and fax), which includes the subscriber line interface circuit (SLIC). A SLIC requires a negative power supply for the interface and the ringer voltages. The power supplies ...
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