Wiring Diagram

SRL6002 Wiring Diagram

Note: One channel only supports one type of serial ports at the same time. The wiring in the diagram is only an example. The specific wiring mode can be determined according to the actual use.

SRL6004 Wiring Diagram

Note: One channel only supports one type of serial ports at the same time. The wiring in the diagram is only an example. The specific wiring mode can be determined according to the actual use.

Module Terminal Description

SRL6002 Terminal Description

Terminal	Terminal Description
R1+/A1	RS422 signal reception through COM1 serial port (+)
T1+	RS422 signal transmission through COM1 serial port (+)
R1-/B1	RS422 signal reception through COM1 serial port (-)
T1-	RS422 signal transmission through COM1 serial port (-)
R1	RS232 signal reception through COM1 serial port
T1	RS232 signal transmission through COM1 serial port
GND	RS232 signal GND through COM1 serial port
PE	Earth
R2+/A2	RS422 signal reception through COM2 serial port (+)
T1+	RS422 signal transmission through COM2 serial port (+)
R2-/B2	RS422 signal reception through COM2 serial port (-)
T2-	RS422 signal transmission through COM2 serial port (-)
R2	RS232 signal reception through COM2 serial port
T2	RS232 signal transmission through COM2 serial port
GND	RS232 signal GND through COM2 serial port
PE	Earth

SRL6004 Terminal Description

Terminal	Terminal Description
R1+/A1	RS422 signal reception through COM1 serial port (+)
T1+	RS422 signal transmission through COM1 serial port (+)
R1-/B1	RS422 signal reception through COM1 serial port (-)
T1-	RS422 signal transmission through COM1 serial port (-)
R1	RS232 signal reception through COM1 serial port
T1	RS232 signal transmission through COM1 serial port
GND	RS232 signal GND through COM1 serial port
PE	Earth
R2+/A2	RS422 signal reception through COM2 serial port (+)
T1+	RS422 signal transmission through COM2 serial port (+)
R2-/B2	RS422 signal reception through COM2 serial port (-)
T2-	RS422 signal transmission through COM2 serial port (-)
R2	RS232 signal reception through COM2 serial port
T2	RS232 signal transmission through COM2 serial port
GND	RS232 signal GND through COM2 serial port
PE	Earth
R3+/A3	RS422 signal reception through COM3 serial port (+)
T3+	RS422 signal transmission through COM3 serial port (+)
R3-/B3	RS422 signal reception through COM3 serial port (-)
T3-	RS422 signal transmission through COM3 serial port (-)
R3	RS232 signal reception through COM3 serial port
T3	RS232 signal transmission through COM3 serial port
GND	RS232 signal GND through COM3 serial port
PE	Earth
R4+/A4	RS422 signal reception through COM4 serial port (+)
T4+	RS422 signal transmission through COM4 serial port (+)
R4-/B4	RS422 signal reception through COM4 serial port (-)
T4-	RS422 signal transmission through COM4 serial port (-)
R4	RS232 signal reception through COM4 serial port
T4	RS232 signal transmission through COM4 serial port
GND	RS232 signal GND through COM4 serial port
PE	Earth

Last modified: 2025-06-30