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Introduction
1-2 HP NC7770 PCI-X Gigabit Server Adapter User Guide
LED Indicators
The following table describes the LED indicators located on the front panel of the HP
NC7770 Server Adapter.
Table 1-1: 10/100/1000 LED Operations for the NC7770 Adapter
LED Display Description
On Link to the adapter is established. The adapter is sending or receiving
network data at 1000 Mb/s.
1000
Off The adapter is not sending or receiving network data at 1000 Mb/s.
On Link to the adapter is established. The adapter is sending or receiving
network data at 100 Mb/s.
100
Off The adapter is not sending or receiving network data at 100 Mb/s.
On Link to the adapter is established. The adapter is sending or receiving
network data at 10 Mb/s.
10
Off The adapter is not sending or receiving network data at 10 Mb/s.
On The adapter is sending or receiving network data at 10, 100, or 1000
Mb/s, as indicated by the 10, 100, and 1000 LEDs. The adapter is
receiving power, and the cable connection is functional.
ACT
Off No network data is being sent or received. The adapter is not receiving
power, the cable connection is faulty, or the driver is not loaded.
UTP Category 5 Cable
The NC7770 Server Adapter can use existing Category 5 UTP (or better) cable to deliver
Gigabit Ethernet over copper, according to the IEEE 802.3ab specifications. For new
installations, Category 5e cable is recommended. For troubleshooting and other information
about cabling, see, “UTP Cable Specifications” in Appendix C.