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Provide twenty-four 10/100/1000 Mbit/s RJ45 downlink optical
interfaces.
Provide four 10 Gbit/s SFP+ uplink interfaces (also supporting 1000
Mbit/s SFP).
Provide 1 SNMP interface for out-of-band network management.
Provide 1 RJ45 Console interface.
Provide 1 USB interface.
Support the 220 VDC power supply and -48 VDC power supply.
The twenty-four downlink interfaces support PoE and can supply
power to remote PDs. Downlink electrical interfaces 1–8 support
IEEE802.3af, IEEE802.3at, and IEEE802.3bt. Downlink electrical
interfaces 9–24 support IEEE802.3af and IEEE802.3at.