Ezviz MKAC-57-242500M Guide De Démarrage Rapide page 16

Power Kit Installation
The power kit ensures that your doorbell gets the power it needs, so be
sure to install it before you install your Doorbell.
1
Shut off the electricity at the breaker that controls doorbell's
circuit.
2
Insert one end of the wire harness into the power kit.
3
Remove the cover from your mechanical chime.
4
Remove the existing chime wires in the terminals named
TRANS and FRONT.
REAR
REAR TRANSF RONT
4