DS2181A Overview
The DS2181A is designed for use in CEPT networks and supports all logical requirements of CCITT Red Book Remendations G.704, G.706 and G.732. The transmit side generates framing patterns and CRC4 codes, formats outgoing channel and signaling data, and produces network alarm codes when enabled. The receive side decodes the ining data and establishes frame, CAS multiframe, and CRC4 multiframe alignments.