Network Ports; Port Leds - HP ProCurve 10 Installation Manual

Network Ports

The HP 10/100 hubs have 12 or 24 RJ-45 ports that can be used for either
10Base-T or 100Base-TX connections.
Ports 2 through 12 or 24 are wired as MDI-X. Therefore, to connect end nodes
or other MDI-type devices to these ports, use "straight-through" twisted-pair
cable; to connect hubs, switches, or other MDI-X-type devices to these ports,
use "crossover" twisted-pair cable. See Appendix B, "Cables and Connectors"
for descriptions of these cables.
Port 1 can operate as either an MDI-X or MDI port, controlled by the MDI-X/
MDI button on the front of the hub. If you have only straight-through cable,
you can use Port 1 with the button in the MDI position to connect the hub to
switches, other hubs, and other MDI-X devices. In the MDI position, the button
crosses the cable pairs on Port 1 so that the Transmit and Receive pins on
connecting devices exchange signals correctly when using straight-through
cable. With the button in the MDI-X position, Port 1 operates the same as the
other ports.

Port LEDs

For each network port on the hub, there are two LEDs:
Link. This LED highlights the port number, and when lit, indicates the port
has detected a valid link with a connected device.
100. This LED when lit, indicates that the port is connected to an attached
device operating at 100 Mbps. If the 100 LED is not lit, and the Link LED
indicates a valid connection, then the port is operating at 10 Mbps. See the
following sections for more details on the LEDs.
Link LED. Indicates
whether the port has
detected the link
beat signal from an
attached device.
Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs
100 LED. Indicates whether
the associated port is
operating at 100 Mbps. If the
100 LED is not lit, then the port
is operating at 10 Mbps
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