Intel 210T Stackable Hub User Guide - Page 10

Connecting to Devices Connection Guidelines General • Ports on the 220T and 210T hubs are half-duplex. To connect to a device at full-duplex, you must use the optional Ethernet or Fiber Modules. • 220T ports are autonegotiating and can operate at 10Mbps or 100Mbps. The hub matches the highest possible speed of an attached device. • All ports on the 210T hub operate at the same speed, either 10Mbps or 100Mbps. The ports cannot autonegotiate speed. • If the 10Mbps and 100Mbps segments are bridged externally (through a switch or Ethernet Module), be sure to turn off the hub's internal bridge before connecting any devices. Cabling • Use Category 5 unshielded twisted-pair (CAT 5 UTP) cable when connecting 100Mbps devices to the hub. • Use Category 3, 4, or 5 unshielded twisted-pair (CAT 3, 4, 5 UTP) cable when connecting 10Mbps devices to the hub. • Limit the cable length between devices to 100 meters. • Use a crossover cable to connect the hub to a switch. • Use a straight-through cable to connect the hub to a server or workstation. For more information on cabling, see pages 12-13. Daisy-chaining Hubs • Don't daisy-chain two hubs operating at 100Mbps with UTP cabling (this violates the IEEE 802.3u Fast Ethernet specification for Class I hubs). You must use Intel Cascade Cables (EE200CC). • Hubs can be daisy-chained only if they are operating at 10Mbps. • When connecting 10Mbps hubs, please note the following diagram. 100m (max) 10 10 10 10 500m (max) 8