2.5
Working principle
RFID
CPU
4
G
IN
OUT
A
H
I
B
C
D
E
F
G
J
M
K
L
N
O
Q
P
1
1
*
*
*
*
*
3
4
4
4
4
4
4
4
2
3
2
*
*
*
*
*
*
*
*
*
A
LEDs
B
Ethernet
C
WiFi
D
4G
E
RFID
F
Bluetooth
G
CPU system
H
Isolation
I
AC/DC power supply
J
AC input
K
Surge protection
L
Earth(ground) fault protection
M
AC input metering
N
AC isolation relay
O
Control pilot
P
AC output
1. The user initiates a charge session request (black lines).
2. The EVSE verifies the status of the EV (purple lines).
3. The EVSE goes on and AC power goes to the EV (yellow lines).
4. The charge session starts. AC power flows from the power grid to the EV (red
lines).
5. The electrical interfaces of the EVSE communicate with the on-board computer
(blue lines).
(*): Connections between parts of the EVSE and the CPU system. The arrow shows
the direction of the input and output signals.
Description
14
BCM.V3Y01.0-EN | 002
