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
Summary of Contents for 78581B
Page 46: ...ACC Maintenance 4 2 ...
Page 54: ...Installation Responsibilities Customer and Agilent Technologies 6 4 ...
Page 90: ...Procedures 8 28 ...
Page 98: ...Contacts 10 6 ...