
RXT-300 SmartWireless™
RXT-300 Wireless IM Rev. 2.0 Page 40 of 41
Modbus B (-) White
RXT-300
Wireless
Transceiver
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Modbus B (-) White
Modbus A (+) Blue
N/CN/C
Terminal
Board
Power (+) Red
Ground (-) Black
SDA White/Brown
SCL White/Black
Programming Reset White/Violet
Programming Data White/Green
Programming Clock White/Blue
Transient
Protection Module
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Serial Sensor 2
Transient
Protection Module
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Transient
Protection Module
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Serial Sensor 4
Transient
Protection Module
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Serial Sensor 1
Modbus B (-) White
Ground (-) Black
Power (+) Red
Modbus A (+) Blue
Serial Sensor 3
Power (+) Red
Ground (-) Black
Solar Panel/
DC Power
Jumper Settings
JP1 2-3
JP2 1-2
JP3 1-2
JP4 1-2
JP5 1-2
JP6 1-2
JP7
1-2
Figure 24 Four Serial Sensors to RXT-300
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