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May 24, 2018

Power over Ethernet Injector and 48V Power Supplies

Custom design and manufacture of state-of-the-art battery chargers, UPS, and power supplies for OEMs in a hurry!


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The second style is shown below, the Cisco AIR-PWRINJ system. It is just a power supply and injector, it is designed to power equipment that draws 48 volts directly from the ethernet cable.
Cisco POE injector Cisco AIR-PWRINJ Single Port Ethernet 48 volt power injector, 125 mA, 6 watts Note: this is tested equipment taken out of service.
Inside the Cisco AIR-PWRINJ To connect the barrel connector from the 48 volt power supply you need to pry the unit open with a screwdriver and thread the DC power cable through the strain relief. Identical in performance to the 350 series power injector
Prices
Quantity 1-10 pieces 11-50
Cisco AIR-PWRINJ single port ethernet injector (requires an external power supply such as the one below) $12.75
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$10.75
48 volt power supply 200 mA for the AIR-PWRINJ
PST-AIR-PWR-A with 5.5 x 2.1 mm barrel connector, center positive
$14.50
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$10.25
48VDC 750mA switchmode power supply click here    
  Sending Unit Receiving Unit
Size 53 x 42 x 25 mm
2.1 x 1.75 x 1 inch
80 x 53 x 25 mm
3.2 x 2.1 x 1 inch
Weight 1.1 Oz., 30g 2.2 Oz., 60g
Ethernet Connectors RJ-45 RJ-45
Power Connectors 5.5 x 2.1 mm Barrel 5.5 x 2.5 mm Barrel


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