SAJ H2 - Assemble the Communication Connection; Install the Communication Module

H2 series
46
5.7. Assemble the communication connection
5.7.1. Install the communication module
About this task
An RS232 USB communication port is provided at the bottom of the junction box. This port is used to
connect the communication module, such as a Wi-Fi or AIO3 module.
4
3
2
1
9
8
7 6
5
Pin
Description
1
GND: Ground wire
2
485A: 485 communication pin A
3
485B: 485 communication pin B
4
CANL: Low speed CAN signal
5
+5V: Power supply
6
232RX: Send data
7
232TX: Receive data
8
CANH: High speed CAN signal
9
NULL: Null
Procedure
Step 1. On the left side of the inverter, remove the cover from the 4G/WIFI port.
Step 2. Insert the communication module into the 4G/WIFI port. Secure the module by rotating the nut.