An ievo system can pull up to 1.2Amps depending upon what revision of equipment you are using and what additions you have.
It is recommend to power an ievo system off an independent 12v, 2 amp power supply (2 readers per 12v/2amp PSU).
It is not recommended to power the ievo system off the same power supply as the access control system or locks.
If you are powering the ievo Revision 4 readers using POE, then you require power from an AT or POE + switch.
For more information and general guidance on our products & services, please contact us.