PLANET VC-2400MR48 User Manual

Page 145

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User’s Manual of VC-820M / VC-2400MR Series

145

of the 15 minutes and time of error of previous 15 minutes.

CRC 1Day

Shows the numbers of CRC errors in previous day.

It can be use to check times of error at present time from starting

Today, times of error of yesterday.

CRC Total

Shows the collected data of all errors

from booting.

Error Correction 15M

Shows the numbers of error correction in previous 15 minutes.

Error Correction 1Day

Shows the numbers of error correction in previous day.

Error Correction Total

Shows the collected data of all error correction

from booting.

xdsl2ChStatusPrevDataRate

The previous net data rate that the bearer channel was operating at just

before the latest rate change event. This could be a full or short

initialization, fast retrain, DRA or power management transitions, excluding

transitions between L0 state and L1 or L2 states. The data rate is coded in

bit/s.

xdsl2LineStatusAttainableRateUs

Maximum Attainable Data Rate Upstream.

The maximum upstream net data rate currently attainable by the VTU-R

transmitter and the VTU-C receiver, coded in bit/s.

xdsl2LineStatusElectricalLength

This parameter contains the estimated electrical length expressed in dB at

1 MHz, kl0. This is the final electrical length that would have been sent

from the VTU-O to VTU-R if the electrical length was not forced by the

CO-MIB.

The value ranges from 0 to 128 dB in steps of 0.1 dB.

xdsl2LineBandStatusSnrMargin

SNR Margin is the maximum increase in dB of the noise power

received at the VTU (VTU-R for a band in the downstream direction and

VTU-C for a band in the upstream direction), such that the BER

requirements are met for all bearer channels received at the VTU. Values

range from -640 to 630 in units of 0.1 dB (Physical values are -64 to 63

dB). A special value of 0x7FFFFFFF (2147483647) indicates the SNR

Margin is out of range to be represented. A special value of 0x7FFFFFFE

(2147483646) indicates the SNR Margin measurement is currently

unavailable

xdsl2PMLCurr15MTimeElapsed

Total elapsed seconds in this interval

xdsl2PMLCurr15MFecs

Count of seconds during this interval that there was at least one FEC

correction event for one or more bearer channels in this line. This

parameter is inhibited during UAS or SES

xdsl2PMLCurr15MEs

Count of seconds during this interval that there was:

VTU-C: CRC-8 >= 1 for one or more bearer channels OR

LOS >= 1 OR SEF >=1 OR LPR >= 1

VTU-R: FEBE >= 1 for one or more bearer channels OR

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