HCS Optional Features User Manual
22
COSMOS Wiring Instructions: 8 or 10 Wire Harness
1. Determine whether the Digital Interface will be used
with or without the Serial Interface in the installation.
NOTE: Contact ClipperCreek to obtain an NDA for
documentation describing the Communication Protocol
for the Serial Interface.
2. Confirm power to the EVSE is off and locked out.
3. Connect the appropriate interface wires to the desired
controller. Please refer to
Table 3.
Table 3: COSMOS
Wiring Instructions: 8 or 10 Wire
Harnesses
Wire Name
Input/Output Interface Wire Color
Ratings
Isolated Ground
Input
Black
Ground
TxD
Output Yellow
RxD
Input Orange
Isolated 3.3-5V
Input
Red
3.3 - 5V DC, 20mA
Ground
Output Green Ground
Load Management 0
Input
Blue
5V DC
Load Management 1
Input
Brown
5V DC
Open Collector Output 0
Output
White
max:24V DC, 5mA
Blue LED +Source, LED2
Output
Grey*
5V, 8mA
Red LED +Source, LED1
Output
Violet*
5V, 8mA
B-Button, ChargeGuard Enable
Input
Grey**
5V, 0.5mA
A-Button, External Activate
Input
Violet**
5V, 0.5mA
Serial
Interface
(Isolated
UART)
Digital
Interface
3.3 - 5V DC
Optional
Application
Features,
10-wire only
* These signals available on 10-wire LED EX cable
** These signals available on 10-wire ChargeGuard EX cable
Grey and Violet wires are not available on the 8-wire cable
All digital interface signals are available on the 15-wire cable
NOTE:
Refer to
Figure 11
.
