SPX RADIODETECTION 6100-Cu Operation Manual page 62

6100-Cu Multifunction Copper Tester Operation Manual
Snapshot
The Resistive Balance test is valuable in
understanding the presence of resistive faults on one
side versus the other (series resistance). A 5 %
difference in the Ohms value between T/A and R/B is
common (95 % balance), but for higher speed DSL
such as VDSL2, imbalance is more critical and should
be 2-3 % when possible (97-98 % balance). There will
be low-Ohm values when measuring resistance with a
short at the far end.
For example, on 24 AWG cable at 21 °C (70 °F), you
will see 520 Ω for a 3 m (10 ft) cable. If both Tip and
Ring have 520 Ω, the pair is balanced perfectly, but
there will normally be some small difference and a
much larger value on one side, for example, 800 Ω
indicates a significant series fault on that side.
The resistive balance Snapshot shows results for R/B-
Leg, T/A-Leg, Loop resistance, and the pass/fail
status for Resistive Balance in Ω and %.
Parameters are as follows:

Current Group is the current test group name,
for example Multimeter.

Current Test displays the test being
measured. When FED is Enabled, the FED
icon and numeric state are displayed beside
the Current Test. Here you can switch to
another test from the given list. However, this
action will terminate the ongoing measurement
test

Threshold Settings button opens a new page
that allows you to set the resistive balance
thresholds.

Test Status displays the current state of
measurement or an error message.
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To select the parameter values:
1. Press the up/down arrow keys to highlight the
desired parameter.
2. Press the left/right arrow keys to view and
select the options.
OR
3. Press on a value to open a list box of
options.
4. Press to confirm the value.
Resistive Balance Threshold Settings
The Threshold Settings page allows you to set the
Resistive Balance (Ω) Threshold values. The
threshold is a programmable value you can use as an
on-screen indicator in each test when a measured
value is too high or too low.

Type is the threshold limit for each pair: either
Maximum or Minimum.

Enabled is a flag to use the current threshold:
either Yes or No.
To set threshold values:
1. Press the up/down arrow keys to highlight the
desired parameter.
2. Press the left/right arrow keys to view and
select the options.
OR
3. Press on a value to open a list box of
options or the alphanumeric editor screen and
use the navigation keys to scroll through.
4. Press to confirm the value.
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