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3. Click the
RunRun
RunRun
R u n button to perform a cable test.
3.3.23.3.2
3.3.23.3.2
3.3.2
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The Marvell
®
Virtual Cable Tester™ (VCT) is a cable diagnostic utility that
reports LAN cable faults and shorts using the Time Domain Reflectometry
(TDR) technology. The VCT detects and reports open and shorted cables,
impedance mismatches, pair swaps, pair polarity problems, and pair skew
problems of up to 100 meters at one meter accuracy.
The VCT feature reduces networking and support costs through a highly
manageable and controlled network system. This utility can be incorporated
in the network systems sofware for ideal field support as well as
development diagnostics.
Using the Virtual Cable Tester™Using the Virtual Cable Tester™
Using the Virtual Cable Tester™Using the Virtual Cable Tester™
Using the Virtual Cable Tester™
To use the the Marvell
®
Virtual Cable Tester™ utility:
1. Launch the VCT utility from the Windows
®
desktop by clicking
Start > All Programs > Marvell > Virtual Cable TesterStart > All Programs > Marvell > Virtual Cable Tester
Start > All Programs > Marvell > Virtual Cable TesterStart > All Programs > Marvell > Virtual Cable Tester
Start > All Programs > Marvell > Virtual Cable Tester.
2. Click
Virtual CableVirtual Cable
Virtual CableVirtual Cable
Virtual Cable
Tester Tester
Tester Tester
Tester from the menu
to display the screen
below.
• The VCT only runs on systems with Windows
®
XP or Windows
®
2000
operating systems.
• The
RunRun
RunRun
R u n button on the Virtual Cable Tester™ main window is
disabled if no problem is detected on the LAN cable(s) connected to
the LAN port(s).
• If you want the system to check the LAN cable before entering the
OS, enable the
POST Check LAN cablePOST Check LAN cable
POST Check LAN cablePOST Check LAN cable
POST Check LAN cable item in the BIOS. See
section “2.4.5 LAN Cable Status” for details.