Manual 85586V1
AtlasPC Digital Control, Vol. I
Woodward
33
Serial I/O
The SmartCore board accepts three serial I/O connections. The first two ports
are configurable for RS-232, RS-422, or RS-485. The last port is configurable for
RS-232 only. RS-232 is specified to 50 feet (15 m), and RS-485 and RS-422 are
specified to 4000 feet (1219 m).
Atlas
80
73
72
71
Isolated
Ground
RS 232
Device
Twisted
Pair
Isolated
+5V
Serial #1 - RS-232
RS 232C
Transceiver
RXB
TXB
RXB
TXB
Figure 5-10. Serial #1–RS-232 Pinouts
+
Atlas
78
77
76
75
74
80
79
73
72
RS 422
Transceiver
422T
422R
71
140
+
Isolated
Ground
RS 422
Device
422T
422R
+
+
Twisted
Pairs
Jumpers to
use optional
termination
resistor
243
Isolated
+5V
+
+
Serial #1 - RS-422
243
Figure 5-11. Serial #1–RS-422 Pinouts
Summary of Contents for AtlasPC
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