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The IEEE 802.3u standard defines two different classes of 100BaseTX repeaters: Class I and Class II. With Class I repeaters, you can build networks with a single repeater. With Class II repeaters, you can build networks with more than one repeater. In addition, with Class II repeaters, you can use longer cable distances in single repeater configurations than you can with Class I repeaters.
The hub is a Class II repeater.
You can connect the hub to another Cisco 1528 Micro Hub 10/100. The section provides more information and examples.
When you cascade the hub to another Cisco 1528 Micro Hub 10/100 using Category 5 unshielded twisted-pair (UTP) cable, the two hubs appear to the rest of the network as two logical repeaters. Figure B-1 shows the connection of two hubs to form a collision domain with up to 14 ports.

This section provides two simple network configurations, as specified in the IEEE 802.3u standard, using the hub. These configurations satisfy the requirements of most networks that are built to the EIA/TIA-568 wiring standard. This standard specifies 100-meter Category 5 UTP connections from wiring closets to desktops.
With Category 5 UTP cable segments, the maximum length for any cable segment is
100 meters, as shown in Figure B-2.

The maximum Category 5 UTP cable segment length is 100 meters. When devices connect to the Cisco 1528 Micro Hub 10/100s with 100-meter segments, the cable connecting the two hubs is limited to a distance of 5 meters, as shown in Figure B-3.

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