Digi NetSilicon Connectware Connect Series, User Manual

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26 Configuring the GPIO Pins
Configuring the GPIO Pins
Introduction
The Digi Connect ME provides five General Purpose IO (GPIO)
pins that can be used for either standard serial communication
signalling (DTR, CTS, etc.) or for a user-defined purpose,
such as when a significant event occurs within the device. In
the latter case, the module can be configured so that when
an event occurs, an email alarm is sent to an administrator or
technician. The Digi Connect EM also provides GPIO pins.
Procedure
1. Access the web interface by entering the module’s IP
address in a browser’s URL window.
2. Choose GPIO from the Configuration Menu.
3. Configure the pins as required. This involves two choices:
• Whether to use a pin for standard serial communica-
tion signalling or for a user-defined purpose. The
default setting is Serial, which means the port will be
used for serial communication signalling. The following
table maps GPIO pins to serial communication signals:
• Whether a user-defined pin is for output (from the
module to the connected device) or input (from the
device to the module). Email notification is possible
only when a pin is configured for input.
4. When you complete configuration, choose Save.
GPIO Pin Signal
1 DCD
2 CTS
3 DSR
4 RTS
5 DTR