ADLINK ND-6067 - Manual (Page 49)

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2.4.4 Pin Definition of ND-6531
Pin # Signal Name Description
1 (Y)DATA+ RS-485 transmission line, positive
2 (G)DATA- RS-485 transmission line, negative
3 DEFAULT* Initial state setting
4 TX+ RS-422 transmission line, positive
5 TX- RS-422 transmission line, negative
6 RX+ RS-422 receiving line, positive
7 RX- RS-422 receiving line, negative
8 FGND Field ground
9 (R)+VS Power supply, +10V~+30V
10 (B)GND Ground
D type 9 Pin Connecter Definition of ND-6531
Pin # Signal Name Description
2 TXD RS-232 transmission line
3 RXD RS-232 receiving line
5 GND RS-232 Signal Common Ground
7 CTS RS-232 Clear to Send
8 RTS RS-232 Ready to Send
Note* : The module is in DEFAULT mode when DEFAULT* pin connected to
GND while applying power on the module.
Note* : Do not apply any power signal to DEFAULT* pin, just left it open or
connected it to GND.