User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022
Figure 33 shows the location of the Digital Interface connector X2 and signal
pinout. Specifications for IOs are given in section 7.2.3 Digital interface on
page 54.
Note! This chapter doesn’t apply to CANOnly.
Figure 33: Digital connection interface terminals
The digital interface can be used in various control circuits. Two examples
are shown in Figure 34.
Figure 34: Digital interface options
Caution! The Common input terminal (D1 on X2) is active and has an internal power
supply of 5 V/ 50 mA. Do not attempt to connect an external supply to this
terminal as it can damage the communication interface box. Digital outputs are
passive and need an external power supply to operate.
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