Prepare The Installation Site - HP ProCurve 10/100 12 Installation Manual

Installing the Hub
Installation Summary

1. Prepare the Installation Site

2-4
Cabling Infrastructure - Ensure that the cabling infrastructure meets
the necessary network specifications. See the following table for cable
types and lengths, and see Appendix B, "Cables and Connectors" for more
information:
Port Type Cable Type
10Base-T category 3, 4, or 5, four-
pair, 100 ohm UTP
(unshielded twisted-pair)
100Base-TX category 5, 100-ohm UTP
Installation Precautions -
• Please see the Safety Statements at the end of this
manual.
• Before installing the hub, plan its location and orientation relative to
other devices and equipment. In the front of the hub, leave at least 3
inches (7.6 cm) of space for the twisted-pair cabling. In the back,
leave at least 1 1/2 inches (3.8 cm) of space for the power cord.
• Caution: Ensure that the hub does not overload the power circuits,
wiring, and over-current protection. To determine the possibility of
overloading the supply circuits, add together the ampere ratings of all
devices installed on the same circuit as the hub and compare the total
with the rating limit for the circuit. The maximum ampere ratings are
usually printed on the devices near the AC power connectors.
• Caution: Ensure that the power source circuits are properly
grounded. See the Safety Statements at the end of this manual.
• Do not install the hub in an environment where the operating ambient
temperature might exceed 55°C (131°F).
• Make sure the air flow around the sides and back of the hub is not
restricted.
Length Limits
Up to 100 meters for category 3 or 4, and
150 meters for category 5.
See the section covering twisted pair
cabling in Appendix B, "Cables and
Connectors" for more information.
Cable lengths depend on the type of device
connected and on the network topology.
See the section covering twisted pair
cabling in Appendix B, "Cables and
Connectors" for more information.