IBM x3550 - System - 7978, Problem Determination And Service Manual

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v Ethernet activity LEDs: When these LEDs are lit, they indicate that the server is
transmitting to or receiving signals from the Ethernet LAN that is connected to
the Ethernet port.
v
Ethernet speed LED: When these LEDs are lit, they indicate that there is an
active link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX
interface for the Ethernet port.
v
Ethernet connectors: Use either of these connectors to connect the server to a
network.
Internal LEDs, connectors, and jumpers
The illustrations in this section show the connectors, LEDs, and jumpers on the
internal boards. The illustrations might differ slightly from your hardware.
Chapter 1. Introduction
9