ADTRAN HDSL2 - Manual (Page 78)

HDSL New Enhanced Feature Overview HDSL2 for General Distribution Installation and Maintenance Practice
B-6 61223HDSL2L2-5B
Figure B-3. Splice Results Screen
View Splice Histogram Screen
The View Splice Histogram Screen (
Figure B-4 ) displays the counters that the splice detector
uses to make its result decision. For HDSL2, it displays six columns. The first and fourth
columns labeled
Splice (feet)
represent the distance from the respective transceiver that the
anomaly detector is evaluating. Columns 2 and 5 display the counters incremented by an
H2TU-C module when its detects an anomaly. Columns 3 and 6 display the counters incre-
mented by an H2TU-R module when its detects an anomaly.
H2TU-C and H2TU-R modules exchange this information so that the counters of each trans-
ceiver are visible locally at each end of the circuit. Since the distances that each transceiver is
evaluating may or may not be exactly the same, the Splice (feet) column reflects the distance
calculation from the displayed transceiver. To show the distances measured from the other
transceiver, press the
C
(Change) key. The counters on this screen are always valid for all
transceivers shown; however, the distance associated with that counter should be verified by
using the
C
(Change) key to get the most accurate distance.
In the example below, the distances shown are corresponding to an H2TU-C module since that
is the transceiver that has detected the anomaly. The count of 09 in the 250 feet row under
the H2TU-C column indicates that an anomaly has been seen nine times at this distance from
an H2TU-C module. Since nine exceeds the count detection threshold of eight, this result is
reported to the Splice Result Screen. Since the H2TU-R shows 00 for all counts in columns 3
and 6, there is no reason to Change (
C
) the view of the distance column to show the distances
an H2TU-R module is evaluating.
Circuit ID:HNTSVLALHDSL2 01/09/05 12:16:05
Press ESC to return to previous menu
* Note: Chronic Circuit Results are only valid after all other circuit *
* qualification tests have been performed and failed to show a trouble !! *
Splice Detector Version 1 Result Definitions:
---------------------------------------------
NTF - No Trouble Found yet.
LOS - Unit not in sync.
Number - Distance from Reference point (in ft.) of suspect splice.
Reference Splice Detection Version Result Shown
Point Results Number for date
--------- ---------------- ------- MM/DD/YY
H2TUC 0250 01 --------
H2TUR NTF 01 01/09/05
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