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Your computer’s NIC connector (an RJ45 connector located on the back panel) 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 a UTP concentrator or hub, depending on your network configuration. Observe the fol- lowing cabling restrictions for 10BASE-T and 100BASE-TX networks.

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‡For 10BASE-T networks, use Category 3 or greater wiring and connectors.

‡For 100BASE-TX networks, use Category 5 wiring and connectors.

‡The maximum cable run length (from a workstation to a concentrator) is 328 feet (ft) (100 meters [m]).

‡The maximum number of workstations (not counting concentrators) on a net- work is 1024.

‡For 10BASE-T networks, the maximum number of daisy-chained concentrators on one network segment is four.

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If your system is connected to a network, verify the following network protocol settings:

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See your network administrator if you need more information on which frame type to select.

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The 3Com EtherDisk XL version 3.01 diskettes provided by Dell are compatible with the 3C905 family of NICs. If you purchased a 3Com 3C905-based NIC separately, do not attempt to use the 3Com EtherDisk XL diskettes that came with the NIC. Use only the 3Com EtherDisk XL version 3.01 diskettes that were provided by Dell.

4-4 Dell OptiPlex GX1 and GX1p Mini Tower Managed PC Systems Reference and Installation Guide