Aethra d2061 用户手册
USER’S MANUAL
ADSL TESTER D2061
The bar at the top of the graphic indicates the part examined.
To view the bits per tone in a tabular format press the
key and go on page 3 of 6.
Now each tone is listed along with the number of bits assigned.
6.2.2. G.826
Page 4 shows the values detected according to G.826 to monitor the in-service line
quality parameters.
quality parameters.
4
Goes to page 4.
This standard allows to check the access quality without performing specific off-
service tests.
service tests.
G.826 measures errors and alarms in the flow through the analysis of the
synchronism blocks (CRC) intrinsically contained in the frame.
synchronism blocks (CRC) intrinsically contained in the frame.
The results allow to measure the unavailability flow time (UAS), number of errored
seconds (ES), number of severely errored seconds (SES) and errored blocks
(BBER) both in uni-directional mode for each direction (Downstream, Upstream) and
in bi-directional mode, by considering the flow as a single communication channel.
seconds (ES), number of severely errored seconds (SES) and errored blocks
(BBER) both in uni-directional mode for each direction (Downstream, Upstream) and
in bi-directional mode, by considering the flow as a single communication channel.
CHAPTER 6 - SMART STATUS
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