Overview
This chapter provides information for configuring DS3, setting up your software for redundancy, and running internal diagnostics on the DS3 card.
The term DS3 (Digital Signal, Level 3) is sometimes used interchangeably with T3, but T3 is really the physical interface over which DS3 information is transmitted. DS3 is the network interface protocol defined by ANSI Standard T1.102-1993, and according to AT&T TR62411 and TR54016.
Unless otherwise specified, the term DS3 card refers to the DS3 line card, not to the DS3 I/O card.