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Allied Telesis SwitchBlade x3106 User Manual

Page 41

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SwitchBlade x3106 Installation Guide

41

PDs that comply with the IEEE 802.3af and 802.3at standards typically
support both power delivery methods. However, some legacy PDs support
only one power delivery method. Legacy devices are nodes manufactured
before the IEEE 802.3af and 802.3at standards were completed and,
consequently, may not adhere to the standards. Legacy devices that only
support Alternative B will not work with the AT-SBx31GP24 PoE Line
Card.