PM4328 View Datasheet(PDF) - PMC-Sierra
Part Name
Description
MFG CO.
'PM4328' PDF : 250 Pages View PDF
STANDARD PRODUCT
DATASHEET
PMC-2011596
ISSUE 1
PM4328 TECT3
HIGH DENSITY T1/E1 FRAMER
AND M13 MULTIPLEXER
· Provides a 128 byte buffer to allow insertion of the facility data link using the
host interface.
· Supports transmission of the alarm indication signal (AIS) or the Yellow alarm
signal in both SF and ESF formats.
· Provides a digital phase locked loop for generation of a low jitter transmit
clock.
· Provides a FIFO buffer for jitter attenuation and rate conversion in the
transmitter.
· Automatically generates and transmits DS-1 performance report messages to
ANSI T1.231and ANSI T1.408 specifications.
· Supports the alternate ESF CRC-6 calculation for Japanese applications.
· A pseudo-random sequence user selectable from 211 –1, 215 –1 or 220 –1,
may be inserted into the T1 stream in either the ingress or egress directions.
The pseudo-random sequence can be inserted into the entire T1 or any
combination of DS0s within the framed T1.
· Line side interface is through the DS3 Interface via the M13 multiplex.
· System side interface is either serial clock and data, H-MVIP or SBI bus.
Each one of 21 E1 transmitter sections:
· Provides a FIFO buffer for jitter attenuation and rate conversion in the
transmit path.
· Transmits G.704 basic and CRC-4 multiframe formatted E1.
· Supports unframed mode and framing bit, CRC, or data link by-pass.
· Provides signaling insertion, programmable idle code substitution, digital
milliwatt code substitution, and data inversion on a per channel basis.
· Provides trunk conditioning which forces programmable trouble code
substitution and signaling conditioning on all channels or on selected
channels.
· Provides a digital phase locked loop for generation of a low jitter transmit
clock.
PROPRIETARY AND CONFIDENTIAL
5
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