TD_20210219_SG30-50-110CX Commissioning Guide_V1.1 Page 6 of 21
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2.2 Energy Meter Connection
The site electrician will need to calculate the CT ratio required as per the installation.
Default Modbus address is 1 and the secondary current of CT should be 5A. Please
refer Meter Selection Guide for reference.
The corresponding pinouts to RJ45 are Pin 3 (White-green) to RS485- B and Pin 6
(Green) to RS485+ A:
DTSD1352 energy meter connection:
• Terminal 21 = RS485+ A (Green)
• Terminal 22 = RS485- B (White/Green)
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