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HCS Optional Features User Manual
COSMOS Wiring Instructions: 15 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 2.
Table 2: COSMOS Wiring Instructions: 15 Wire Harnesses
Wire Name
Isolated Ground
TxD
RxD
Isolated 3.3-5V
Ground
Load Management 0
Load Management 1
Open Collector Output 0
Open Collector Output 1
Ground
Blue LED +Source, LED2
Red LED +Source, LED1
B-Button, ChargeGuard Enable
A-Button, External Activate
Not Used
NOTE: Refer to Figure 10. The Black wire is unused.
Input/Output
Interface
Input
Serial
Output
Interface
(Isolated
Input
UART)
Input
Output
Input
Digital
Input
Interface
Output
Output
Output
Optional
Output
Application
Output
Features
Input
Input
---
20
Wire Color
Black/WH
Green/WH
Blue/WH
Red/WH
Green/BK
Orange/BK
Orange
White/BK
White
Green
Blue
Red
Blue/BK
Red/BK
---
Black
Ratings
Ground
3.3 - 5V DC
3.3 - 5V DC, 20mA
Ground
5V DC
5V DC
max:24V DC, 5mA
max:24V DC, 5mA
Ground
5V, 8mA
5V, 8mA
5V, 0.5mA
5V, 0.5mA
---
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