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4-port RS-422/485 model termination resistor setting table:
Mode
Function
DIP Switch Settings
1.
Manufacturer default
(Disable termination resistor)
2.
COM1 enables
120 ohms termination resistor
3.
COM2 enables
120 ohms termination resistor
4.
COM3 enables
120 ohms termination resistor
5.
COM4 enables
120 ohms termination resistor
6.
COM1&2&3&4 enable
120 ohms termination resistor
2-port RS-422/485 model termination resistor setting table:
Mode
Function
DIP Switch Settings
1.
Manufacturer default
(Disable termination resistor)
2.
COM1 enables
120 ohms termination resistor
3.
COM2 enables
120 ohms termination resistor
4.
COM1&2 enable
120 ohms termination resistor