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Figure 3-71
485 config
3.2.11 PoE
PoE (Power over Ethernet) is the function that through Ethernet RJ-45 port, the device can
provide power for the external PD (Powered Device) remotely with twisted pair. PoE function
helps to centralize power supply and facilitate backup. The network terminal does not need the
external power source anymore, and one network cable is enough, It conforms to the standards
of IEEE 802.3af, IEEE 802.3at, and IEEE 802.3bt, adopting the power port globally agreed. It
can be applied in IP telephone, wireless AP (Access Point), portable device charger, card
reader, network camera, date collection, and so on.
Only some models of PoE switches comply with the IEEE 802.3bt standard, and BT supports
Max. 90W. Please refer to the actual situation.
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