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Using the Network Interface Controller 5-3
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Your computer’s NIC connector (an RJ45 connector located on the back panel; see
Figure 5-1) is designed for attaching an unshielded twisted pair (UTP) Ethernet cable.
Press one end of the UTP cable into the NIC connector until the cable snaps securely
into place.
Connect the other end of the cable to an RJ45 jack wall plate or to an RJ45 port on an
Ethernet UTP concentrator or hub, depending on your network configuration.
Observe the following cabling restrictions for 10BASE-T and 100BASE-TX networks:
For 10-megabit (Mb) operation, use Category 3, 4, or 5 wiring and connectors. For
100-Mb operation, use Category 5 wiring and connectors. Voice and data lines
should be in separate sheaths.
The maximum cable run length (from a workstation to a concentrator) is
100 meters (m) (328 feet [ft]).
The maximum number of workstations (not counting concentrators) on a net-
work is 1024.
The maximum number of daisy-chained concentrators on one network segment
is four.
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This section provides instructions for configuring the computer’s integrated,
10/100-megabits-per-second (Mbps) 3Com NIC under Microsoft Windows NT 4.0
operating systems.
NOTE: If you reinstall Windows NT 4.0, you must install Service Pack 3 and the
Microsoft updated ATAPI driver before you can install the NIC drivers.
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The Windows NT 4.0 operating system automatically detects and installs the NIC
driver. To reinstall the driver, complete the following steps.
See “Network Cable Requirements” found earlier in this chapter for detailed
instructions.
See “NIC” in Chapter 3 for more information.