2 x GB Ethernet, 1 SFP, Passive PoE out (57 V)
The GPEN21 is a smart power injector that serves as an advanced software controlled repeater. Not only can it power your uplink devices via PoE, it can also provide a range of useful software features:
Interface management and monitoring
GPEN link fault detection
VLAN support
SNMP reporting
Basic traffic shaping
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