STANDARD PRODUCT
PM4328 TECT3
DATASHEET
PMC-2011596
ISSUE 1
HIGH DENSITY T1/E1 FRAMER
AND M13 MULTIPLEXER
Sꢀ Extracts 4-bit codewords from the E1 national use bits as specified in
ETS 300 233.
Sꢀ V5.2 link indication signal detection.
Sꢀ Provides performance monitoring counters sufficiently large as to allow
performance monitor counter polling at a minimum rate of once per second.
Optionally, updates the performance monitoring counters and interrupts the
microprocessor once per second, timed to the receive line.
Sꢀ Provides a two-frame elastic store buffer for backplane rate adaptation that
performs controlled slips and indicates slip occurrence and direction.
Sꢀ Frames to the E1 signaling multiframe alignment when enabled and extracts
channel associated signaling. Alternatively, a common channel signaling data
link may be extracted from timeslot 16.
Sꢀ Can be programmed to generate an interrupt on change of signaling state.
Sꢀ Provides trunk conditioning which forces programmable trouble code
substitution and signaling conditioning on all channels or on selected
channels.
Sꢀ A pseudo-random sequence user selectable from 211 –1, 215 –1 or220 –1, may
be detected in the E1 stream in either the ingress or egress directions. The
detector counts pattern errors using a 24-bit non-saturating PRBS error
counter. The pseudo-random sequence can be the entire E1 or any
combination of timeslots within the framed E1.
Sꢀ Line side interface is the DS3 interface mutiplexed as per the G.747
recommendation.
Sꢀ System side interface is either serial clock and data or H-MVIP.
Sꢀ Provides external access for up to two de-jittered recovered E1 clocks.
Each one of 28 T1 transmitter sections:
Sꢀ May be timed to its associated receive clock (loop timing) or may derive its
timing from a common egress clock or a common transmit clock; the transmit
line clock may be synthesized from an N*8kHz reference.
Sꢀ Provides minimum ones density through Bell (bit 7), GTE or “jammed bit 8”
zero code suppression on a per-DS0 basis.
PROPRIETARY AND CONFIDENTIAL
4
PMC [ PMC-SIERRA, INC ]
