PM4314-RI データシートの表示（PDF） - PMC-Sierra

部品番号

コンポーネント説明

メーカー

PM4314-RI

QUAD T1/E1 LINE INTERFACE DEVICE

PMC-Sierra 

PM4314 QDSX

DATA SHEET

PMC-950857

ISSUE 5

QUAD T1/E1 LINE INTERFACE DEVICE

• Detects unframed 215-1 test sequences as defined in ITU-T O.151 and

accumulates bit errors detected using this pseudo-random pattern.

• Optionally inserts unframed 215-1 test sequences in place of recovered data.

Each transmitter section

• Generates DSX-1 and CEPT E1 compatible pulses with programmable pulse

shape using an external 1:1.36 turns ratio transformer.

• Accommodates standard cable types such as ABAM, PIC, and Coaxial.

• Provides an integrated analog pulse driver performance monitor which can

provide an interrupt upon detection of failure.

• Allows bipolar violation (BPV) transparent operation for error restoring

regenerator applications.

• Allows bipolar violation (BPV) insertion for diagnostic testing purposes.

• Supports all ones transmission for alarm indication signal (AIS) generation.

• Provides a digital phase-locked loop for generation of jitter reduced transmit

output timing. The DPLL utilizes a 37.056 MHz master clock for DSX-1 or a

49.152 MHz master clock for CEPT E1 applications.

• Digital phase-locked loop locks 1.544 MHz or 2.048 MHz output timing to the

average frequency of the 1.544 MHz or 2.048 MHz jittered transmit input

clock.

• Provides a 2 x 48 bit FIFO for jitter attenuation in the transmit path.

• Provides up to 55 dB of jitter attenuation to satisfy AT&T TR 62411, ITU-T

G.737, G.738, G.739, and G.742.

• Provides FIFO overrun and underrun indicators.

• Inhibits FIFO overrun and underrun for excessive jitter amplitudes.

• Supports transmission of a programmable unframed inband loopback code

sequence.

• Programmable to transmit repetitions of any arbitrary code from three to eight

bits in length.

• Accepts either dual rail or single rail DS-1/E1 signals.

• Performs B8ZS or AMI encoding when processing a single rail DS-1 signal

and HDB3 or AMI encoding when processing a single rail E1 signal.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 3

Share Link: