QK-R041 Manual
V 1.0
7 of 16
2022
used for switching, rather than driving other inputs.
3.5.1. Digital inputs
DI1 and DI2 are two digital inputs. Digital Inputs allow the R041 to detect logic states (low or high) when
GND is connected to or disconnected from the DI1/2 terminals of the router. Using the R041
’s
configuration interface, the operator can set up the input parameters and specify what actions should be
executed when the digital input is triggered.
The digital inputs are non-isolated and set as dry connect by default. The following is the typical
connection example. The R041 also supports wet connection, but please ensure the maximum input
voltage is 5.0V, voltage higher than 5.0V could permanently damage your device.
Figure 2 Digital input connections
3.5.2. Digital outputs
Digital Outputs allow the R041 to output logic states. It can be used to turn on other devices such
as sensors, alarms. The DO function can be accessed and configured on the router by using the
configuration interface.
Not like the Digital inputs, the outputs are wet connections. The follow is a typical connection to
external devices. Make sure the GND of the external devices is connect to the
R041’s COM
terminal. Improper connection to other devices could damage the router. The DO port can stand
up to 36VDC and 300mA as the maximum current.
Figure 3 Digital output connections
