3-11
This method applies to the device using AC power input.
If the access controller is AC powered, you can ground the access controller through a PE wire of the
AC power supply. In this case, make sure the PE wire is well connected to the ground in the power
distribution room or on the AC transformer side.
Figure 3-18
Ground the access controller through an AC PE wire
(1) Power transformer
(2) AC power socket
(3) Grounding terminal
(4) Three-core AC power cord
(5) PE wire
Connecting the Power Cord
Make sure that the ground wire is properly connected before powering on the access controller.
If the device is AC-powered, connect the device with an external AC power system through an AC
power cord; if the device is DC-powered, connect the device with an external DC power system through
a DC power cord.
Connecting the AC Power Cord
Follow the steps below to connect the AC power cord:
1) Make sure that the PGND of the access controller is correctly connected.
2) Install the AC power cord retainer to the access controller, and turn the retainer left.
3) Connect one end of the power cord to either power socket on the rear panel of the chassis, and the
other end to the AC power supply.
4) Turn the power cord retainer right to lock the power cord plug.
