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4 Using the Notebook PC
WARNING! Only use analog telephone outlets. The built-in modem does not support
the voltage used in digital phone systems. Do not connect the RJ-11 to digital phone
systems found in many commercial buildings or else damage will occur!
Example of the Notebook PC connected to a Network Hub or Switch for use with the built-in
Ethernet controller.
Network Connection
Connect a network cable, with RJ-45 connectors on each end, to the modem/network port on the Note-
book PC and the other end to a hub or switch. For 100 BASE-TX / 1000 BASE-T speeds, your network
cable must be category 5 or better (not category 3) with twisted-pair wiring. If you plan on running the
interface at 100/1000Mbps, it must be connected to a 100 BASE-TX / 1000 BASE-T hub (not a BASE-T4
hub). For 10Base-T, use category 3, 4, or 5 twisted-pair wiring. 10/100 Mbps Full-Duplex is supported
on this Notebook PC but requires connection to a network switching hub with “duplex” enabled. The
software default is to use the fastest setting so no user-intervention is required.
1000BASE-T (or Gigabit) is only supported on selected models.
Twisted-Pair Cable
The cable used to connect the Ethernet card to a host (generally a Hub or Switch)
is called a straight-through Twisted Pair Ethernet (TPE). The end connectors are
called RJ-45 connectors, which are not compatible with RJ-11 telephone connectors.
If connecting two computers together without a hub in between, a crossover LAN
cable is required (Fast-Ethernet model). (Gigabit models support auto-crossover so
a crossover LAN cable is optional.)
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