PM4328 datasheet(16/250 Pages) PMC

16 / 250 page

STANDARD PRODUCT

PM4328 TECT3

DATASHEET

PMC-2011596

ISSUE 1

HIGH DENSITY T1/E1 FRAMER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

· Provides Red, Yellow, and AIS alarm integration.

· Provides ESF bit-oriented code detection and an HDLC/LAPD interface for

terminating the ESF facility data link.

· Indicates signaling state change, and two superframes of signaling debounce

on a per-DS0 basis.

· Provides an HDLC interface with 128 bytes of buffering for terminating the

facility data link.

· 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.

· Provides an optional elastic store which may be used to time the ingress

streams to a common clock and frame alignment, or to facilitate per-DS0

loopbacks.

· Provides DS-1 robbed bit signaling extraction, with optional data inversion,

programmable idle code substitution, digital milliwatt code substitution, bit

fixing, and two superframes of signaling debounce on a per-channel basis.

· A pseudo-random sequence user selectable from 2

11 –1, 215 –1 or220 –1, may

be detected in the T1 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 T1 or any

combination of DS0s within a framed T1.

· Line side interface is the DS3 interface via the M13 multiplex.

· System side interface is either serial clock and data, H-MVIP or SBI bus.

· Frames in the presence of and detects the “Japanese Yellow” alarm.

· Provides external access for up to two de-jittered recovered T1 clocks.

Each one of 21 E1 receiver sections:

· Frames to ITU-T G.704 basic and CRC-4 multiframe formatted E1 signals.

The framing procedures are consistent ITU-T G.706 specifications.

· Provides an HDLC interface with 128 bytes of buffering for terminating the

national use bit data link.

PM4328 Datasheet(PDF) 16 Page - PMC-Sierra, Inc