
Wiring Connections
18
Table 2: RS-232 Serial Connection
J8 Pin
Signal
Connection
1
GND
Ground
2
RXD
Receive Data Input (from external device)
3
TXD
Transmit Data Output (to external device)
4
RTS
Ready to Send Output (to external device)
1 2 3 4
RS-232 Pins
Figure 4-2: J4 - RS-232 Jack Pinout
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