PM8315-PI View Datasheet(PDF) - PMC-Sierra

Part Name

Description

View to exact match

PM8315-PI

HIGH DENSITY T1/E1 FRAMER WITH INTEGRATED VT/TU MAPPER AND M13 MULTIPLEXER

PMC-Sierra 

STANDARD PRODUCT

DATASHEET

PMC-1981125

ISSUE 7

DS2 Framer Section:

PM8315 TEMUX

HIGH DENSITY T1/E1 FRAMER WITH

INTEGRATED VT/TU MAPPER AND M13 MUX

• 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.

DS2 Transmitter Section:

• Generates the required X, F, and M bits into the transmitted DS2 bit stream.

Allows inversion of inserted F or M bits for diagnostic purposes.

• Provides for transmission of far end receive failure (FERF) and alarm

indication signal (AIS) under microprocessor control.

• Provides optional automatic insertion of far end receive failure (FERF) on

detection of out of frame (OOF), alarm indication signal (AIS) or red alarm

condition.

M12 Multiplexer Section:

• Multiplexes four DS1 bit streams into a single M12 format DS2 bit stream.

• Performs required bit stuffing including generation and interpretation of C-

bits.

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

• Performs required inversion of second and fourth multiplexed DS1 streams

as required by ANSI T1.107 Section 7.2.

• Allows insertion and detection of per DS1 payload loopback requests

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

• Allows per tributary alarm indication signal (AIS) to be activated or cleared for

either direction under microprocessor control.

PROPRIETARY AND CONFIDENTIAL

12

Share Link: