[POE-162S] Why POE-162S can’t drive some of 24V devices when connects with IEEE 802.3af injector?

If connecting IEEE 802.3af injector, the output ampere will lower than IEEE 802.3at injector and it might not enough to drive some of specific 24V devices. So, before connect to a 24VDC device, please check the power consumption of the device before connect POE-162S to the 802.3af 15.4Watts POE Power Sourcing Equipment.