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CX28395

Conexant Systems
Part Number CX28395
Manufacturer Conexant Systems
Description (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Published Dec 14, 2005
Detailed Description CX28394/28395/28398 Quad/x16/Octal—T1/E1/J1 Framers The CX28394/28395/28398 is a family of multiple framers for T1/E1/J1...
Datasheet PDF File CX28395 PDF File

CX28395
CX28395

Overview
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 Time Division Multiplexed (TDM) system interface that supports bus rates from 1.
536 to 8.
192 MHz is featured.
Extensive test and diagnostic functions include a full set of loopbacks, Pseudo Random Bit Sequence (PRBS) test pattern generation, Bit Error Rate (BER) meter, and forced error insertion.
Distinguishing Features • • • • Up to 16 T1/E1/J1 Framers in one package Extensive support of various protocols T1: SF, ESF, SLC®96, T1DM, TTC JT(J1) E1: PCM-30, G.
704, G.
706, G.
732, ISDN primary rate (ETS300 011, INS 500) Extracts and inserts signaling bits Dual HDLC controllers per framer for data link and LAPD/SS7 signaling Two-frame transmit and receive PCM slip buffers Separate or multiplexed system bus interfaces Parallel 8-bit microprocessor port supports Intel or Motorola buses BERT generation and counting B8ZS/HDB3/Bit 7 zero suppression (CX28394 and CX28398 only) Operates from a single +3.
3 Vdc ± 5% power supply Low-power CMOS technology • • • Functional Block Diagram • Receive Dual Rail or NRZ RX Slip Buffer Receive System Bus • • • • • ZCS* Decode T1/E1 Receive Framer Receive Dual Rail or NRZ ZCS* Encode Overhead Insertion TX Slip Buffer T1/E1 Transmit Framer Transmit System Bus Applications • Multiline T1/E1 Channel Service Unit/Data Service Unit (CSU/DSU) Digital ...


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