Procedures
8-22
7. Record test values and port label.
If port has no label, assign a bed or branch number to that port.
Note
Test values may be stored in the PentaScanner and then downloaded to a PC
or printer to obtain a printed report of all tested branches. The PentaScanner
automatically calculates and reports all tests with either a pass or fail status.
8. If test values meet specifications, the cable is qualified.
If not, use the troubleshooting table below.
Attenuation (per 90
meters) @200C)
NEXT (>90 meters)
Freq.(Mhz) NEXT (dB) Attenuation
(dB)
0.772 64 1.6
1.0 62 1.9
4.0 53 3.9
8.0 48 5.3
10.0 47 5.9
16.0 44 7.4
20.0 42 8.3
25.0 41 9.5
31.25 39 10.6
62.5 35 15.4
100.0 32 19.8
Tests Specifications
Symptom Possible Cause Corrective Action
Failed cable-length test Cable> 90 m (295 ft.) Install SDC or XSDC cable
Failed noise test Noise sources close to UTP
cable
Install SDC or ScTP cable
Failed splice-in-cable test Damaged UTP Cable Re-pull UTP cable
Failed wire-map test Broken wire in UTP Cable Re-terminate indicated wire, or
re-pull UTP cable
Crossed pairs in UTP Cable Re-terminate indicated pairs
Wrong adapter used in
PentaScanner test
Match PentaScanner adapter to
patch panel wiring — A or B
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