Allied Telesis 8PS User Manual
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AT-GS900/8PS

Gigabit Ethernet POE+ Switch

AT-GS900/8PSInstallation Guide

PN 613-001687Rev. A

Copyright ♥ 2012 Allied Telesis, Inc.

All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.

Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.

Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or should have known, the possibility of such damages.

Electrical Safety and Emissions Standards

This product meets the following standards.

U.S. Federal Communications Commission

Radiated Energy

Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right to operate this equipment.

Industry Canada

This Class A digital apparatus meets all requirements of the Canadian Interference-CausingEquipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

RFI Emissions

FCC Part 15 Class A

 

CISPR 22 Class A

 

EN55022:2006/A:2007 Class A

Warning: In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Immunity

EN55024

Electrical Safety

EN60950 (TUV) T-Mark

 

UL 60950 (CULUS)

 

C-TICK

 

CE

Environmental Compliance

EU-RoHScompliant

WEEE

China RoHS compliant

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Translated Safety Statements

Important: Theindicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements” posted on the Allied Telesis website atwww.alliedtelesis.com.

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Contents

Preface ................................................................................................................................................................................

11

Symbol Conventions .....................................................................................................................................................

12

Contacting Allied Telesis ...............................................................................................................................................

13

Chapter 1: Overview ..........................................................................................................................................................

15

Features ........................................................................................................................................................................

16

General ..................................................................................................................................................................

16

Twisted Pair Ports ..................................................................................................................................................

16

LEDs ......................................................................................................................................................................

16

PoE Ports ...............................................................................................................................................................

16

SFP Slots ...............................................................................................................................................................

16

Power over Ethernet ..............................................................................................................................................

17

Installation Options.................................................................................................................................................

17

Power Conservation...............................................................................................................................................

17

MAC Address Table ...............................................................................................................................................

17

Dimensions ............................................................................................................................................................

17

Operating Conditions .............................................................................................................................................

17

Front and Back Panels ..................................................................................................................................................

18

Twisted Pair Ports .........................................................................................................................................................

19

Cable Specifications...............................................................................................................................................

19

MDI/MDI-X Mode ...................................................................................................................................................

19

Auto-Negotiation Mode ..........................................................................................................................................

20

Flow Control and Back Pressure............................................................................................................................

20

SFP Port........................................................................................................................................................................

21

LEDs..............................................................................................................................................................................

22

Power Over Ethernet.....................................................................................................................................................

25

PoE Standards .......................................................................................................................................................

25

PoE Powered Device Classes ...............................................................................................................................

26

PoE Power Budget.................................................................................................................................................

26

PoE Port Prioritization ............................................................................................................................................

27

PoE Guard Band ....................................................................................................................................................

27

Exceeding PoE Power Budget ...............................................................................................................................

27

Wiring Implementation ...........................................................................................................................................

29

Power Supply ................................................................................................................................................................

30

Chapter 2: Installation .......................................................................................................................................................

31

Reviewing Safety Precautions.......................................................................................................................................

32

Selecting a Site for the Switch.......................................................................................................................................

34

Unpacking the Switch....................................................................................................................................................

35

Installing the Switch on a Desktop ................................................................................................................................

37

Installing the Switch in an Equipment Rack...................................................................................................................

38

Installing the Switch on a Wall.......................................................................................................................................

40

Installing Optional SFP Transceiver ..............................................................................................................................

43

Cabling the Switch.........................................................................................................................................................

45

Powering On the Switch ................................................................................................................................................

46

Chapter 3: Troubleshooting ..............................................................................................................................................

47

Power LED OFF ............................................................................................................................................................

47

Twisted Pair Port LINK/ACT LED Off ............................................................................................................................

47

SFP Port LINK/ACT LED Off.........................................................................................................................................

48

5

Contents

 

Slow Network Performance ...........................................................................................................................................

49

LINK/ACT LED Intermittently Blinking ...........................................................................................................................

49

Powered Device Not Receiving Power..........................................................................................................................

50

Resetting Blinking PoE Port LED...................................................................................................................................

51

Appendix A: Technical Specifications .............................................................................................................................

53

Physical Specifications ..................................................................................................................................................

53

Environmental Specifications.........................................................................................................................................

53

Power Specifications .....................................................................................................................................................

53

PoE Specifications.........................................................................................................................................................

54

Safety and Electromagnetic Emissions Certifications....................................................................................................

54

Connectors and Port Pinouts.........................................................................................................................................

55

6

Figures

Figure 1. AT-GS900/8PS Front Panel .................................................................................................................................

18

Figure 2.

Back Panel ...........................................................................................................................................................

18

Figure 3. AT-GS900/8PS LEDs...........................................................................................................................................

22

Figure 4. AT-GS900/8PS Switch Items ...............................................................................................................................

36

Figure 5.

Attaching the Rubber Feet ...................................................................................................................................

37

Figure 6.

Attaching the Rack-Mount Brackets to the Switch................................................................................................

38

Figure 7. Mounting the Switch in an Equipment Rack.........................................................................................................

39

Figure 8.

Attaching the Brackets to Install the Switch on a Wall..........................................................................................

40

Figure 9.

Marking the Screw Hole Locations.......................................................................................................................

41

Figure 10.

Securing the Switch to the Wall..........................................................................................................................

42

Figure 11. Removing the Dust Plug from an SFP Slot ........................................................................................................

43

Figure 12.

Inserting the SFP................................................................................................................................................

44

Figure 13. Plugging in the AC Power Cord..........................................................................................................................

46

Figure 14.

RJ-45 Connector and Port Pin Layout................................................................................................................

55

7

Figures

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