The uplin k port is not internally crossed. Category 5 UTP cable Note Remember that you must connect the FastHub uplink port to an X port on a switch, router, or other hub. This se ction provides cabling guidelines for determining how to build networks using FastHubs and other repeaters. The FastHub 112T and FastHub 124T are Class II repeaters. Class II repeaters support longer cable segments in single repeater configurations than Class I repeaters.
Many sw itches have internal repeaters or plug-in repeater modules.
In this type of device, the switch is actually attached to a port on the internal repeater. If the port is a Class I repeater port, do not connect the FastHub or any other repeater to the port. General Guidelines for Ethernet Networks Table B-3 describes some guidelines when creating Ethernet networks with multiple repeaters. Exact figures could vary, depending on the manufacturer of the network equipment.