PTP820 PoE injector specification can be found from the PTP820C, PTP820S product specificdation.
For your convinience, here is the data sheet just for PTP820 PoE injector.
PoE Injector Mechanical Specifications
• Dimensions – 134mm(H), 190mm(W),62mm(D), 1 kg
PoE Injector Environmental Specifications
• 33°C to +55°C (‐45°C to +60°C extended)
PoE Injector Power Input Specifications
• Standard Input: ‐48 or +24 VDC
• DC Input range: ±(18/40.5 to 60) VDC (+18VDC extended range is supported as part of the nominal +24VDC support)
PoE Injector Interfaces
- DC Power Port 1 ±(18-60)V or ±(40-60)V
- DC Power Port 2 ±(18-60)V (Optional)
- GbE Data Port supporting 10/100/1000Base-T
- Power-Over-Ethernet (PoE) Port
- Grounding screw
Regards
Allen