5
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
Contents