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FEATURES

? Monolithic device which integrates software selectable full-featured T1 and E1 framers and T1 and E1 short haul and long haul line interfaces.

? Meets or exceeds T1 and E1 shorthaul and longhaul network access specifications including ANSI T1.102, T1.403, T1.408, AT&T TR 62411, ITU-T G.703, G.704 as well as ETSI 300-011, CTR-4, CTR-12 and CTR-13.

? Provides encoding and decoding of B8ZS, HDB3 and AMI line codes.

? Provides receive equalization, clock recovery and line performance monitoring.

? Provides transmit jitter attenuation and digitally programmable long haul and short haul line build out.

? Provides on-board programmable binary sequence generators and detectors for error testing including support for patterns recommended in ITU-T O.151.

? Provides three full-featured HDLC controllers, each with 128-byte transmit and receive FIFO buffers.

? Automatically generates and transmits DS-1 performance report messages to ANSI T1.231 and ANSI T1.408 specifications.

? Compatible with Mitel ST?-bus, AT&T CHI? and MVIP PCM backplanes, supporting rates of 1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s, and 8.192 Mbit/s. Up to four COMET devices may be byte-interleaved on a single backplane with no external circuitry.

? Supports NxDS0 fractional bandwidth backplane.

? Provides an 8-bit microprocessor bus interface for configuration, control, and status monitoring.

? Uses line rate system clock.

? Provides a IEEE P1149.1 (JTAG) compliant test access port (TAP) and controller for boundary scan test.

? Implemented in a low power 5 V tolerant +3.3 V CMOS technology.

? Available in a high density 80-pin MQFP (14 mm by 14 mm) package or an 81-ball CABGA (9 mm by 9 mm) package.

? Provides a -40°C to +85°C Industrial temperature operating range.

APPLICATIONS

? T1/E1 Wireless Digital Loop Carriers (DLCs) and Cellular Base Stations

? T1/E1 Internet Access Equipment

? T1/E1 Channel Service Units (CSU)

? T1/E1 Frame Relay Interfaces

? T1/E1 ATM Interfaces

? T1/E1 Multiplexers (CPE MUX)

? Digital Private Branch Exchanges (PBX)

? Digital Access Cross-Connect Systems (DACS) and Electronic DSX CrossConnect Systems (EDSX)

? ISDN Primary Rate Interfaces (PRI)

? Test Equipment