Exfo VDSL2 Bedienungsanleitung PDF herunterladen (Seite 53)

Running CPE Tests

VDSL2, ADSL2+, and IP Triple-Play Test Set 47

Reading Results

Statistics

The Statistics tab allows you to view transfer mode statistics and xDSL

counters.

The available test results are:

³ TransportType options include

packet transfer mode (PTM) and

asynchronous transfer mode

(ATM).

³ SyncLostCount is the number of

times the unit lost synchronization.

³ Received Bytes is the number of

active (non-idle) PTM/ATM cells or frames received on a channel.

³ Transmit Bytes records the number of active (non-idle) PTM/ATM cells

or frames transmitted on a channel.

³ PTMCRC is the number of cyclical redundancy check (CRC) errors of

the PTM.

³ PTMCV is the number of constant velocity (CV) errors of the PTM.

³ VDSL Counters lists the Local and Remote results for the following

counters:

³ CRC is the cyclical redundancy check (CRC) Interleaved/Fast

counter.

³ HEC is the header error check (HEC) Interleaved/Fast counter.

³ FEC is the Reed Solomon forward error check (FEC)

Interleaved/Fast counter.

³ FEC Seconds is the number of seconds when FEC is detected.

³ Error Seconds is the number of seconds when code violation is

detected.

³ Reset Counters button sets all counters to 0.

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Exfo VDSL2 Bedienungsanleitung Seite 53