Instruction Manual

NuDAM-6521 • 49
Pin Definitions
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
RS-232 9-pin RS-232 connector
*The module is in DEFAULT mode when DEFAULT* pin connected
to GND while applying power on the module.
*Do not apply any power signal to DEFAULT* pin, just left it open or
connected it to GND.
1
2
3
4
5
6
7
8
9
GND
TXD
RXD
CTS
RTS