Cisco Reverse Cable

Polarity reversing cable for pre-standard PoE Cisco phones


DC to DC reverse polarity adapter

The WS-Cisco reverses the voltage for Cambium, Canopy, and pre-standard phones when used with the WS-POE-8 and WS-PoE-12 products.

It reverses the + and – in the 2.1 mm dc connector, when used with our 48v power supply to power any of these phones:

  • Cisco IP Phone 7902G
  • Cisco IP Phone 7905G
  • Cisco IP Phone 7910G
  • Cisco IP Phone 7910G +SW
  • Cisco IP Phone 7912G
  • Cisco IP Phone 7940G
  • Cisco IP Phone 7960G
  • Cisco IP Phone 7962G
  • Cisco IP Phone 7975G
  • Cisco IP Phone 7985G

Mix new and old Cisco phones on the same injector panel, use any ethernet switch and add PoE to that switch at low cost. Budget 6 watts per phone.


Product Specifications

Connector Types 2.1mm female DC barrel, 2.1mm male DC barrel
Dimensions 6 in.
Max Voltage 48 volts
Operating Humidity 5% to 90%