Chapter
13 Copper Testing
OneExpert DSL User's Guide
22052280, Rev. 015
April 2019
182
Testing with an UltraFED far end device
FED controls are implemented on your instrument in two ways:
1. Some commands are embedded in copper test applications, such as the commands used
to short the leads while measuring resistance. These commands are documented in their
respective applications.
2. Some commands can be issued manually using items
provided on the UltraFED Control menu, as shown here.
About the UltraFED Control menu
Using the UltraFED Control menu, you can control a far-end
device (FED) to allow two-ended pair testing with a single
piece of test equipment. After a technician connects a Viavi
UltraFED to the far end of the pair under test, and connects
your instrument to the near end, your instrument controls
the FED using DTMF tones.
Manually controlling the UltraFED
1. Connect the Tip (A), Ring (B), and Ground (Earth) leads
to the line under test.
2. Go to the Copper menu.
3. Press
UltraFED Control
. The UltraFED Control menu appears.
4. Issue one of the following commands by selecting the corresponding menu item:
Open All
– Tip (A), ring (B), and ground (sleeve)are disconnected from the cable
pairsunder test. This is used to isolate thepair under test.
• Use the plus and minus sign to specify the duration.
• Press
Send
to issue the command.
TR Short
– Connects tip (A) to ring (B). Also called Strap mode. This is used with
the loopresistance measurement or with the RFL measurements.
• Select
Pair 1
or
Pair 2
.
• Use the plus and minus sign to specify the
duration.
• Press
Send
to issue the command.
TRG Short
– Connects tip (A), ring (B), and ground (sleeve - E) to ground. This is
used during the resistive balance measurement.
• Select
Pair 1
or
Pair 2
.
• Use the plus and minus sign to specify the
duration.
• Press
Send
to issue the command.
Summary of Contents for OneExpert DSL ONX-580
Page 1: ...OneExpert DSL User s Guide ...
Page 6: ...OneExpert DSL User s Guide 22052280 Rev 015 April 2019 vi ...
Page 78: ...Chapter 3 Utilities OneExpert DSL User s Guide 22052280 Rev 015 April 2019 78 ...
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Page 144: ...Chapter 7 Wiring Tools OneExpert DSL User s Guide 22052280 Rev 015 April 2019 144 ...
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Page 172: ...Chapter 11 Testing with SmartIDs OneExpert DSL User s Guide 22052280 Rev 015 April 2019 172 ...
Page 224: ...Chapter 13 Copper Testing OneExpert DSL User s Guide 22052280 Rev 015 April 2019 224 ...
Page 236: ...Chapter 14 Fiber Testing OneExpert DSL User s Guide 22052280 Rev 015 April 2019 236 ...