Galil Motion Control DMC-42 0 Series, User Manual

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RS-422-Main Port
Standard connector and cable when DMC-42x0 is ordered with RS-422 Option.
Pin # Signal
1 RTS-
2 TXD-
3 RXD-
4 CTS-
5 GND
6 RTS+
7 TXD+
8 RXD+
9 CTS+
RS-422-Auxiliary Port
Standard connector and cable when DMC-42x0 is ordered with RS-422 Option.
Pin # Signal
1 CTS-
2 RXD-
3 TXD-
4 RTS-
5 GND
6 CTS+
7 RXD+
8 TXD+
9 RTS+
RS-232/422 Configuration Jumpers
Location Label Function (If jumpered)
JP2 (-C012, default)
JP3 (-C022) ARXD Connects a 120 Ω Termination resistor between the differential “Receive”
inputs on the Aux Serial port. Pins 2 and 7 on RS-422 Auxiliary Port.
ACTS Connects a 120 Ω Termination resistor between the differential “Clear To
Send” inputs on the Aux Serial port. Pins 1 and 6 on RS-422 Auxiliary Port.
JP2 (-C012, default)
JP2 (-C022) MRXD Connects a 120 Ω Termination resistor between the differential “Receive”
inputs on the Main Serial port. Pins 3 and 8 on RS-422 Main Port.
MCTS Connects a 120 Ω Termination resistor between the differential “Clear To
Send” inputs on the Main Serial port. Pins 4 and 9 on RS-422 Main Port.
JP2 (-CO12, default)
JP3 (-C022) APWR Do not use with RS-422 option.
Note: The ARXD, ACTS, MRXD and MCTS should be installed for single-drop RS-422. For
multi-drop, the jumpers should be installed on the last device.
Appendices ▫ 171 DMC-42x0 User Manual