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 AIR-PWRINJ Single Port Ethernet 48 volt power injector, 125 mA, 6 watts
Note: this is tested equipment taken out of service.
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
$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
