HP J4897A, Installation Manual

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2-4
Installing the Series 2700 Switches
Installation Procedures
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1. Prepare the Installation Site
■ 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, “Switch Ports and Network
Cables” 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 7.6 cm (3 inches) of space for
the power cord and cooling.
• On the sides of the switch, leave at least 3.8 cm (1 1/2 inches) for
cooling.
Cable Type Length Limits
• 10 Mbps operation:
Category 3, 4, or 5, 100-ohm differential
unshielded twisted-pair (UTP) or shielded
twisted-pair (STP)
• 100 Mbps operation:
Category 5, 100-ohm differential UTP or
STP
• 1000 Mbps operation:
Category 5E or better, 100-ohm differen-
tial UTP or STP
100 meters
100 meters
100 meters
Notes: Since the 10Base-T operation is through 10/100/1000Base-T ports, if you ever want
to upgrade the ports to 100Base-TX, it would be best to cable the ports initially with category
5 cable. For 1000Base-T, category 5E, or better, cable should be used.
The 10/100/1000-Base-T ports on the Switch 2708 include the IEEE 802.3ab
“Auto MDI/MDI-X” feature. This feature allows you to use either straight-through or
crossover twisted-pair cables for connecting to
any network devices including end nodes,
such as computers, or to other switches, hubs, and routers.
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