The TP-DCDC-1248DX2-HP are unique high power PoE injectors with Dual
802.3af/at compatible outputs. This means that two devices can be powered from a
single PoE injector. The data path between the units is handled by the injector
so no PoE switch is required.
Power Output is 42W total or 21W per port
They have two inputs for connecting 2 power sources, like a primary and
backup power source. They have various protections for short circuit, overload
and surges caused by ESD or lightning. The built-in surge protection protects
sensitive connected devices from damage due to surges on data and PoE lines. All
8 wires are protected.
The input voltage and output voltage are isolated to avoid any grounding or
negative voltage issues.
