CX28394/28395/28398 Quad/x16/Octal—T1/E1/J1 Framers The CX28394/28395/28398 is a family of multiple framers for T1/E1/J1 and Integrated Service Digital Network (ISDN) primary rate interfaces operating at 1.
544 Mbps or 2.
048 Mbps.
All framers are totally independent, and each combines a sophisticated framing synchronizer and transmit/receive slip buffers.
Operations are controlled through a series of memory-mapped registers accessible via a parallel microprocessor port.
Extensive register support is provided for alarm and error monitoring, signaling supervision (including ISDN D-channel/SS7 process), per-channel trunk conditioning, and Facility Data Link (FDL) maintenance.
A flexible serial T...

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