PM4328 datasheet(21/250 Pages) PMC

21 / 250 page

STANDARD PRODUCT

PM4328 TECT3

DATASHEET

PMC-2011596

ISSUE 1

HIGH DENSITY T1/E1 FRAMER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

repeating pattern up to 32 bits. The test pattern can be framed or unframed.

Diagnostic abilities include single bit error insertion or error insertion at bit

error rates ranging from 10-1 to 10-7.

M23 Multiplexer Section:

· Multiplexes 7 DS2 bit streams into a single M23 format DS3 bit stream.

· Performs required bit stuffing/destuffing including generation and

interpretation of C-bits.

· Includes required FIFO buffers for rate adaptation in the multiplex path.

· Allows insertion and detection of per DS2 payload loopback requests

encoded in the C-bits to be activated under microprocessor control.

· Internally generates DS2 clock for use in integrated M13 or C-bit parity

multiplex applications. Alternatively accepts external DS2 clock reference.

· Allows per DS2 alarm indication signal (AIS) to be activated or cleared for

either direction under microprocessor control.

· Allows DS2 alarm indication signal (AIS) to be activated or cleared in the

demultiplex direction automatically upon loss of DS3 frame alignment or

signal.

· Supports C-bit parity DS3 format.

DS2 Framer Section:

· Frames to a DS2 (ANSI T1.107 section 8) signal with a maximum average

reframe time of less than 7 ms (as required by TR-TSY-000009 Section 4.1.2

and TR-TSY-000191 Section 5.2).

· Detects the DS2 alarm indication signal (AIS) in 9.9 ms in the presence of a

10-3 bit error rate.

· Extracts the DS2 X-bit remote alarm indication (RAI) bit and indicates far end

receive failure (FERF).

· Accumulates up to 255 DS2 M-bit or F-bit error events per second.

PM4328 Datasheet(PDF) 21 Page - PMC-Sierra, Inc