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IBM System x3550 M3 Type 4254 Problem Determination And Service Guide

IBM System x3550 M3 Type 4254
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v Systems-management Ethernet connector: Use this connector to connect the
server to a network for full systems-management information control.
v Ethernet connectors: Use either of these connectors to connect the server to a
network. When you use the Ethernet 1 connector, the network can be shared
with the IMM through a single network cable.
The following illustration shows the LEDs on the rear of the server.
The following illustration shows the LEDs on a dc power supply.
-48V return
Ground
-48V
Power input LED
Power output LED
Power error LED
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 link LEDs: 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 AC power LED: Each hot-swap ac power supply has an ac power LED and a dc
power LED. When the ac power LED is lit, it indicates that sufficient power is
coming into the power supply through the power cord. During typical operation,
both the ac and dc power LEDs are lit. For any other combination of LEDs, see
“Power-supply LEDs” on page 110.
v IN OK power LED: Each hot-swap dc power supply has an IN OK power LED
and an OUT OK power LED. When the IN OK power LED is lit, it indicates that
sufficient power is coming into the power supply through the power cord. During
typical operation, both the IN OK and OUT OK power LEDs are lit. For any other
combination of LEDs, see “Power-supply LEDs” on page 110.
v DC power LED: Each hot-swap power supply has a dc power LED and an ac
power LED. When the dc power LED is lit, it indicates that the power supply is
supplying adequate dc power to the system. During typical operation, both the ac
and dc power LEDs are lit. For any other combination of LEDs, see
“Power-supply LEDs” on page 110.
v OUT OK power LED: Each hot-swap dc power supply has an IN OK power LED
and an OUT OK power LED. When the OUT OK power LED is lit, it indicates that
Chapter 2. Introduction 13

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IBM System x3550 M3 Type 4254 Specifications

General IconGeneral
BrandIBM
ModelSystem x3550 M3 Type 4254
CategoryServer
LanguageEnglish

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