5
Preface ..................................................................................................................................................................................7
Safety Symbols Used in this Document ..........................................................................................................................8
Contacting Allied Telesis .................................................................................................................................................9
Chapter 1: Product Description ........................................................................................................................................11
Overview .......................................................................................................................................................................12
AT-GS910/5 Switch................................................................................................................................................12
AT-GS910/5E Switch .............................................................................................................................................13
AT-GS910/8 Switch................................................................................................................................................14
AT-GS910/8E Switch .............................................................................................................................................14
AT-GS910/16 Switch..............................................................................................................................................15
AT-GS910/24 Switch..............................................................................................................................................16
Wall and Rack Mount Brackets ..............................................................................................................................16
LEDs ......................................................................................................................................................................17
10/100/1000 Base-TX Twisted Pair Ports ..............................................................................................................18
Power Connector ...................................................................................................................................................19
Key Features .................................................................................................................................................................20
Ethernet Switching Basics.............................................................................................................................................21
Duplex Mode ..........................................................................................................................................................21
Store-and- Forward ................................................................................................................................................21
Backpressure and Flow Control ..................................................................................................
...........................21
Loop Prevention ............................................................................................................................................................23
Examples with Multiple Loop Prevention Switches ................................................................................................23
Examples with Loop Prevention and Regular Switches .........................................................................................24
Examples within a Loop Prevention Switch............................................................................................................25
Guidelines for Loop Prevention ..............................................................................................................................26
Enabling Loop Protection .......................................................................................................................................26
Disabling Loop Protection ......................................................................................................................................26
Energy Efficiency Ethernet (EEE) .................................................................................................................................27
Chapter 2: Installation .......................................................................................................................................................29
Reviewing Safety Precautions.......................................................................................................................................30
Selecting a Site for the Switch.......................................................................................................................................32
Planning the Installation ................................................................................................................................................33
Unpacking the Switch....................................................................................................................................................34
Installing the Switch on a Table or Desktop ..................................................................................................................36
Installing the Switch on a Wall.......................................................................................................................................37
Guidelines for Installing the Switch on a Wall ........................................................................................................37
What to Prepare for Installation with Brackets .......................................................................................................39
Installing the AT-GS910/5, AT-GS910/8, or AT-GS910/8E Switch on a Wall ........................................................39
Installing the AT-GS910/16 Switch on a Wall....................................................................................
.....................39
Installing the AT-GS910/24 Switch on a Wall.........................................................................................................41
Installing the Switch in an Equipment Rack...................................................................................................................44
Guidelines for Installing the Switch in a Rack ........................................................................................................44
What to Prepare for Installation in a Rack..............................................................................................................44
Installing the AT-GS910/8 or AT-GS910/8E Switch in a Rack ...............................................................................44
Installing the AT-GS910/16 Switch in a Rack.........................................................................................................44
Installing the AT-GS910/24 Switch in a Rack.........................................................................................................46
Cabling the Switch.........................................................................................................................................................48
Powering On the Switch ................................................................................................................................................49
Chapter 3: Installation Using the AT-BRKT-J23 Wall Mount Kit ...................................................................................51
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