82
Sidekick
®
Plus Test Set
APPENDIX C: STEP TDR FEATURE
(optional)
In addition to the traditional Pulse TDR, the Sidekick
®
Plus test set also offers an optional Step TDR feature.
The Step TDR feature allows the unit to automatically
detect bridged tap that can cause trouble and limit
bandwidth in the DSL network. Using a Step TDR also
makes copper troubles more visible on the TDR screen
and easier to interpret. The Step TDR feature offers the
following benefits:
• A Zero distance deadzone: Faults can be detected at
the end of the test leads.
• Detects bridged taps as short as 1.2 m (4 ft).
• “Close in” faults can be seen more easily.
• Easier to see small impedance changes that occur
because of twist, taps, series resistance, etc.
• Excellent for analyzing inside wiring and drop wire.
Testing with Step TDR
To use the Step TDR test:
1. Move the knob to the TDR position. If the TDR
feature has not been used, the Cable Selection
screen will be displayed. Otherwise, press the
F3
button to enter the Cable Selection screen.
2. From the Cable Selection screen, select the appro-
priate cable type, and then press the
O
(
Back)
key.
The Test Pair screen will be displayed.
3. To display the Step TDR, press
F3 Config
, and
then use the up (
2
) and down (
8
) keys to highlight
the Unit selection. Press the right (
6
) key to toggle
between Pulse TDR and Step TDR.
4. Select the Step TDR test, and then press the
O
(
Back)
key. The unit will then start the Step TDR
test.
Summary of Contents for 1155-5003
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