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4
Making Network Connections
2.
If not already in place, attach one end of a cable segment to the back of the
patch panel where the punch-down block is located, and the other end to a
modular wall outlet.
3.
Label the cables to simplify future troubleshooting.
Network Switch
Connectivity Rules
When adding hubs (repeaters) to your network, please follow the connectivity rules
listed in the manuals for these products. However, note that because switches break
up the path for connected devices into separate collision domains, you should not
include the switch or connected cabling in your calculations for cascade length
involving other devices.
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100BASE-TX connections should also
work for 1000BASE-T, providing that all four wire pairs are connected. However, it is
recommended that for all critical connections, or any new cable installations,
Category 5e (enhanced Category 5) or Category 6 cable should be used. The
Category 5e specification includes test parameters that are only recommendations
for Category 5. Therefore, the first step in preparing existing Category 5 cabling for
running 1000BASE-T is a simple test of the cable installation to be sure that it
complies with the IEEE 802.3ab standards.
4-4
T ig er S w it ch 10 /1 0 0
6 7 2 4 L 3
Patch Panel
Figure 4-3 Wiring Closet Connections
Equipment Rack
(side view)
Punch-Down Block
Wall
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