
46
General Purpose I/O Interface
details the GPIO interface.
Table 16 GPIO Interface
Can be set as input or output
Can be set as input or output
DTR for Serial Port 1 or used as
GPIO
DSR for Serial Port 1 or used as
GPIO
DCD for Serial Port 1 or used as
GPIO
LED 1 or used as GPIO (1=OFF,
0=illuminated)
LED 2 or used as GPIO (1=OFF,
0=illuminated)
Dedicated for power LED (1=OFF,
0=illuminated)
Dedicated for Test Button (1=OFF,
0=switch depressed)
The special function capability of each GPIO can be enabled using the SET GPIO SPEC or SET GPIO
SPECM command as detailed in the Advanced Configuration chapter of this manual.
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