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245U-E Wireless Ethernet Modem User Manual
19
Rev Version 2.24
NPN transistor devices (such as electronic proximity switches). PNP transistor devices are not suitable.
Contact wetting current of approximately 5 mA is provided to maintain reliable operation of driving relays.
The digital input is connected between the DIO terminal and common COM. The I/O circuit includes a LED
indicator, which is green when the digital input is active, that is, when the input circuit is closed. Provided
the resistance of the switching device is less than 200 ohms, the device will be able to activate the digital
input.
Figure 17 DIO Input
The I/O channel may also be used as a discrete output. The digital outputs are transistor switched DC
signals, FET output to common rated at 30 Vdc 500 mA.
NOTE The output circuit is connected to the DIO terminal. The digital output circuit includes a LED
indicator, which is red when the digital output is active.
Figure 18 DIO Output
