ADLINK ND-6067 - Manual (Page 25)

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2.1.4 Pin Definition of ND-6520
Pin # Signal Name Description
1 (Y)DATA+ RS-485 transmission line, positive
2 (G)DATA- RS-485 transmission line, negative
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
9 (R)+VS NuDAM power supply, +10V~+30V
10 (B)GND NuDAM Ground
D type 9 Pin Connecter Definition of ND-6520
Pin # Signal Name Description
2 RXD RS-232 receiving line
3 TXD RS-232 transmission line
5 GND RS-232 Common Ground