Table of Contents
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Contents
Preface ..................................................................................................................................................................................7
Safety Symbols Used in this Document ..........................................................................................................................8
Contacting Allied Telesis .................................................................................................................................................9
Chapter 1: Product Description ........................................................................................................................................ 11
Overview .......................................................................................................................................................................12
Key Features ..........................................................................................................................................................12
Components ..................................................................................................................................................................14
Front Panels ...........................................................................................................................................................14
Back Panel .............................................................................................................................................................15
10/100/1000 Base-T Twisted Pair Ports ................................................................................................................ 15
100Base-TX, 1G/2.5G/5G/10G Base-T Twisted Pair Ports ................................................................................... 16
SFP/SFP+ Slot ....................................................................................................................................................... 17
LEDs ...................................................................................................................................................................... 19
DIP Switches ..........................................................................................................................................................22
Power Connector ...................................................................................................................................................23
Loop Prevention ............................................................................................................................................................ 24
Root Switch ............................................................................................................................................................ 24
Non-root Switch......................................................................................................................................................24
Examples with Multiple Loop Prevention Switches ................................................................................................25
Examples with Loop Prevention and Regular Switches .........................................................................................26
Examples within a Loop Prevention Switch............................................................................................................27
Guidelines for Loop Prevention .............................................................................................................................. 27
Enabling Loop Protection .......................................................................................................................................27
Disabling Loop Protection ...................................................................................................................................... 27
Energy Efficiency Ethernet (EEE) ................................................................................................................................. 28
Ethernet Switching Basics ............................................................................................................................................. 29
Duplex Mode ..........................................................................................................................................................29
Store-and- Forward ................................................................................................................................................ 29
Backpressure and Flow Control .............................................................................................................................29
Chapter 2: Installation ....................................................................................................................................................... 31
Reviewing Safety Precautions.......................................................................................................................................32
Selecting a Site for the Switch.......................................................................................................................................34
Unpacking the Switch .................................................................................................................................................... 36
Installing the Switch on a Table or Desktop .................................................................................................................. 37
Guidelines for Installing the Switch on a Table or Desktop ....................................................................................37
Installing the Switch Flat on a Table or Desktop .................................................................................................... 38
Installing the Switch on a Wall.......................................................................................................................................39
Wall-Mount Bracket Kits .........................................................................................................................................39
Guidelines for Installing the Switch on a Wall ........................................................................................................ 39
Installing the Switch in an Equipment Rack...................................................................................................................41
Rack Mount Kits ..................................................................................................................................................... 41
Cabling Twisted Pair Ports ............................................................................................................................................42
Guidelines to Connecting Twisted Pair Cables ...................................................................................................... 42
Installing an SFP Transceiver .......................................................................................................................................43
Guidelines to Handling SFP Transceivers.............................................................................................................. 43
Installing an SFP Transceiver ................................................................................................................................43
Powering On the Switch ................................................................................................................................................ 46
Chapter 3: Wall Installation Using the BRKT-J22 Kit .....................................................................................................47
Unpacking the BRKT-J22 Wall Mount Kit......................................................................................................................48
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