STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
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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.
PROPRIETARY AND CONFIDENTIAL
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PMC [ PMC-SIERRA, INC ]
