CPS SCH100KTL-DO-600 - Page 50

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CPS SCH100KTL-DO/US-600, SCH125KTL-DO/US-600 and SCH100KTL-
DO/US-480 inverters support industry standard SunSpec and Modbus RS485
communication. Below is a description of the components of the
communication card and its location in the inverter wire-boxes.
Communication board description
Figure 3-29 Communication Board
4
1
2
3
5
① RS485 (Reserved)
② Power port (2pin connector)
1. GND
2. +12V
③ RS485 port (6pin connector)
1. 485_A
2. 485_B
3. 485_GND
4. 485_A
5. 485_B
6. 485_GND
④ Selector Switch (S201): 120Ω
terminal resistor switch for
communications.
1. ON: Enable the
termination resistance
2. OFF: Disable termination
resistance
⑤ RJ45(Reserved)
L1 L2
L3
COMM
COMM
1 2 3
4
5
COMM
1 2 3
4
5