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Fast-Ethernet Connection
Connect a network cable, with RJ-45 connectors on each end, to the modem/network port
on the UltraMobilePC and the other end to a hub or switch. For 100 BASE-TX 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 100Mbps, it must be connected to a 100 BASE-TX
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 UltraMobilePC 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.
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.
Example of the UltraMobilePC connected to a Network Hub or Switch for use with the
built-in Ethernet controller.
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!
Network Hub or
Switch
Network cable with RJ-45
connectors
UltraMobilePC
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