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