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Allied Telesis
AT-9000/28
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Chapter 3 - Troubleshooting
46
Contents
Main
Page
Electrical Safety and Emissions Standards
Page
Contents
Page
Preface
Safety Symbols Used in this Document
Page
Contacting Allied Telesis
Chapter 1
Overview
Switch Features
Front and Back Panels
Figure 1.
Figure 2.
Gigabit Ethernet Ports
Twisted Pair Ports
Uplink Ports
RS-232 Console Port
LEDs
System LEDs
Figure 3
RJ-45 Port LEDs & MODE Switch
LINK LED
MODE LED
AT-900
Page
SFP LEDs
ecoSwitch
AT-900
Ethernet Switching Basics
MAC Address Table
Duplex Mode
Auto MDI/MDI-X
Store and Forward
Back Pressure and Flow Control
Page
Page
Chapter 2
Installing the Switch
Reviewing Safety Precautions
Page
Selecting a Site
Twisted Pair and Fiber Optic Cable Specifications
Unpacking the Switch
Installing the Switch in a Rack
Page
Installing Optional Transceivers
Installing an SFP Transceiver
Page
Cabling the Twisted Pair or Fiber Optic Ports
Applying AC Power
Starting a Local Management Session
Page
Page
Page
Chapter 3
Troubleshooting
Power LED is Off
Twisted Pair Port Link LED is Off
Fiber Optic Port Link LED is Off
Cannot Establish a Local (Out-of-Band) Management Session
Page
Technical Specifications
Safety and Electromagnetic Emissions Certifications
Compliance Standards
10/100/1000Base-T Twisted Pair Port Connectors
Page
Console Port Pinouts
Table 10