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Stack Installation Guide for AT-2552XS L2 Data Center Switch
25
Power/Fault LED The Power/Fault LED are shown in Figure 5.
Figure 5. Power/Fault LEDs
The Power/Fault LED is described in Table 4.
Table 4. Power/Fault LED Description
Location LED State Description
Rear
Panel
POWER
/FAULT
Solid green Power is being supplied and the chassis is
operating normally.
Flashing
green
System is booting up.
Solid yellow
There is a problem with:
- Failure of one or more power supply fans
Flashing
yellow
Only one PSU is powered up.
Off No power.
- Installation Guide 1
- Radiated Energy 3
- Industry Canada 3
- Translated Safety Statements 4
- Contents 5
- Document Conventions 12
- Contacting Allied Telesis 13
- Overview 15
- AT-DC2552XS Features 16
- Installation Options 17
- Power Supply/Fan Modules 17
- Optional SFP+ Transceivers 17
- Management Methods 18
- Optional QSFP+ Transceivers 18
- AT-DC2552XS 19
- Physical 19
- Description 19
- Chapter 1: Overview 24
- NET MGMT 26
- Console Port 29
- AT-PWR06 Power Supply Module 30
- AT-FAN06 Fan Module 32
- Beginning the Installation 33
- Installation Overview 34
- Reviewing Safety Precautions 35
- Planning the Installation 39
- Unpacking the Switch 40
- AT-PWR06 41
- Power Supply 41
- AT-FAN06 Fan 42
- Chapter 3 43
- Installing Power 48
- Supply Module 48
- Replacing Power 50
- Supply Blank 51
- Installing Fan 52
- Replacing Fan 54
- Transceivers and Cables 55
- Guidelines 56
- Installing SFP+ 57
- Transceiver 57
- Installing a SFP+ 59
- Direct Attach 59
- Installing a 61
- QSFP+ MTHTP 63
- Powering the Switch 65
- Powering On the Switch 66
- Console port 67
- Turn Off the switch 68
- Managing the Switch 69
- Local Management 70
- Stop bits: 1 71
- Flow control: None 71
- Remote Network Management 72
- Troubleshooting 75
- Chapter 7: Troubleshooting 78
- Technical Specifications 79
- Power Specifications 80
- Certifications 80
- Quality and Reliability 80
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