Contents

Preface	15
Safety Symbols Used in this Document	16
Contacting Allied Telesis	17
Chapter 1: Overview	19
Introduction	20
AT-SBx8112 Chassis	23
Ethernet Line and Controller Cards Slots	25
Power Supply Slots	25
AT-SBx81GT24 Line Card	27
AT-SBx81GT40 Line Card	28
AT-SBx81GP24 PoE Line Card	29
AT-SBx81GS24a SFP Line Card	30
AT-SBx81XS6 SFP+ Line Card	31
10/100/1000Base-T Twisted Pair Ports	32
Connector Type	32
Speed	32
Duplex Mode	32
Maximum Distance	33
Cable Requirements	33
Automatic MDIX Detection	34
Port Pinouts	34
Power over Ethernet on the AT-SBx81GP24 Line Card	35
Powered Device Classes	35
Power Budgeting	36
PoE Wiring	36
Port LEDs on the Ethernet Line Cards	38
AT-SBx81GT24 Line Card	38
AT-SBx81GT40 Line Card	39
AT-SBx81GP24 Line Card	41
AT-SBx81GS24a Line Card	42
AT-SBx81XS6 Line Card	43
AT-SBx81CFC400 Controller Fabric Card	44
SYS Status LEDs	45
SBx STATUS LEDs	47
eco-friendly Button	48
Reset Button	48
NET MGMT Port	49
NET MGMT LED	51
Console (RS-232) Port	51
USB Port	51
AT-SBxPWRSYS1 Power Supply	53
LEDs	53
AT-SBxPWRPOE1 Power Supply	55
LEDs	55

Allied Telesis X8112 manual Contents