To Test Each Length Of Cable - Honeywell EXPERION PKS Installation Manual

Chapter 6 - Testing ControlNet Trunk Cables
6.3.1

To test each length of cable

1. With no cable connected, verify that your TDR screen appears as shown.
Settings are:
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2. Connect one end of your cable to the cable jack on the TDR; do NOT terminate the loose end. You
screen should appear as shown in one of the following figures.
If your settings are:
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Do NOT connect together and attempt to test multiple lengths of ControlNet trunk cable.
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Doing so will invalidate the test and will not ensure accurate results.
Both ends of every ControlNet trunk cable section must be tested.
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Keep the TDR batteries (if used) fully charged.
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The cables connectors must be installed using the correct tools. If it appears the
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connection was made with pliers, channel-locks, or vice-grips, reject the cable.
Look for folds or kinks in the cable sheathing, indicating that the minimum bend-radius
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was exceeded; reject the cable.
Do not compromise on the accuracy of the test terminator. This test procedure depends
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on the delta difference between the terminator and the cable section under test.
X10 & .5ft/Div
0 dB & 0 dB Loss
2 m (6.5 ft) example
X10 & .5ft/Div
0 dB & 0 dB Loss
No Terminator
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