Allied Telesis X8112 Maximum power supply efficiency (based on 100V input voltage), Heat dissipation (British Thermal Units/hour), Available Power over Ethernet (Watts/port):

SwitchBlade x8112 Chassis Switch Installation Guide
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Maximum power supply efficiency (based on 100V input voltage)
Heat dissipation (British Thermal Units/hour)
Available Power over Ethernet (Watts/port):
AT-SBx81CFC400 48.3 W
Table 29. Maximum Power Efficiency
AT-SBxPWRSYS1 AC Up to 90%
AT-SBxPWRPOE1 AC Up to 90%
AT-SBxPWRSYS1 DC Up to 90%
Table 30. Heat Dissipation
AT-SBx81GT24 146.72 BTU/hr
AT-SBx81GT40 183.74 BTU/hr
AT-SBx81GP24 146.72 BTU/hr
AT-SBx81GS24a 240.13 BTU/hr
AT-SBx81XS6 233.73 BTU/hr
AT-SBx81CFC400 206.01 BTU/hr
AT-SBxPWRSYS1 AC 5118.21 BTU/hr
AT-SBxPWRPOE1 AC 5118.21 BTU/hr
AT-SBxPWRSYS1 DC 5118.21 BTU/hr
Table 31. Available Power Over Ethernet with One PoE Power Supply
One PoE Power Supply Installed 1200 W @ 56 VDC
IEEE 802.3at Class 4 (30 W /port) 40 ports Maximum
IEEE 802.3af Class 3 (15.4 W /port) 77 ports Maximum
IEEE 802.3af Class 2 (7.3 W /port) 171 ports Maximum
IEEE 802.3af Class 1 (4.0 W /port) 240 ports Maximum
Table 28. Maximum Power Consumption (Continued)