HP ProCurve 408, Руководство по установке

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2-5
Installing the Switch 408
Installation Procedures
1. Prepare the Installation Site
■ Cabling Infrastructure - Make sure the cabling infrastructure
meets the necessary network specifications. Because of the HP
Auto-MDIX feature, for connections to end nodes (computers,
servers, printers and other peripherals), or connections to hubs
or other switches, you can use straight-through cables. Crossover
cables can also be used for any of these connections. See the
following table for cable types and lengths, and see appendix B,
“Cables and Connectors” for more information:
Table 2-1. Summary of Cable Types to Use with the Switch
■
Installation Location - Before installing the switch, plan its
location and orientation relative to other devices and equipment.
At the front of the switch, leave at least 7.6 cm (3 inches) of space
for the twisted-pair cabling. At the back of the switch, leave at
least 2.6 cm (1 inch) of space for the adapter’s power cord.
Port Type Cable Type Length Limits
10Base-T category 3, 4, or 5,
100-ohm unshielded
twisted-pair (UTP) or
shielded twisted-pair
(STP) category 3, 4, or 5 - 100 meters
Note: Since the 10Base-T operation
is through 10/100Base-TX ports, if you
ever want to upgrade the ports to
100Base-T, it would be best to cable
the ports initially with category 5
cable.
100Base-TX category 5, 100-ohm
UTP or STP 100 meters