Gigabit Ethernet Interconnect Guide

2 HP ProCurve 2650
An HP ProCurve 2650 is used for multiple roles in an HP Cluster Platform solution. It is used
as a system interconnect and it is used to control the console network or the administrative
network. This chapter presents the following information relating to the HP ProCurve 2650:
• An overview of the HP ProCurve 2650 (Section 2.1)
• An explanation of the HP ProCurve 2650 LEDs and buttons (Section 2.2)
2.1 HP ProCurve 2650 Overview
The HP ProCurve 2650 has 48 dual-speed ports that are spread across the front panel. To the
right is a pair of fixed triple-speed copper gigabit ports, and below these are two mini-GBIC slots
that accept fiber-optic cables. These are referred to as dual-personality ports because you can
use either the copper port or the corresponding fiber-optic port, however, only two can be in
action at any one time. By default, the RJ-45 connectors are enabled. If a mini-GBIC is installed
in a slot, it is enabled and the associated RJ-45 connector is disabled. If the mini-GBIC is removed,
the associated RJ-45 port is automatically re-enabled.
Figure 2-1 HP ProCurve 2650
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The following list corresponds to the callouts shown in Figure 2-1:
1. Power and fault LEDs
2. Reset and clear button
3. Self-test and fan status LEDs
4. Port LED view select button and indicator LEDs
5. Port LEDs
6. 10/100Base-TX RJ-45 ports
7. Dual-personality ports (1000Base-T or mini-GBIC)
HP ProCurve 2650 Characteristics
The characteristics of the HP ProCurve 2650 include the following:
• Forty-eight 10/100 ports
• Two gigabit link ports
• 10/100 auto-sensing per port, which automatically detects and sets the speed for any 10Base-T
or 100Base-TX device
• MDI/MDI-X cascade port, which makes it easy to add other hubs to the network
• LED display with per-port indicators
• Automatic polarity correction and auto-partitioning on all ports
• Built-in bridge that automatically connects 10 Mb/s and 100 Mb/s devices
18 HP ProCurve 2650