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OCTOBER 2003
XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. 1.2.1
GENERAL DESCRIPTION
The XRT72L50, single Channel DS3/E3 Framer IC is designed to accept user data from the Terminal Equipment and insert this data into the payload bitfields within an outbound DS3/E3 Data Stream. Further, the Framer IC is also designed to receive an inbound DS3/E3 Data Stream from the Remote Terminal Equipment and extract out the user data. The XRT72L50 DS3/E3 Framer device is designed to support full-duplex data flow between Terminal Equipment and an LIU (Line Interface Unit) IC. The Framer Device will transmit, receive and process data in the DS3-C-bit Parity, DS3-M13, E3-ITU-T G.751 and E3ITU-T G.832 Framing Formats.