Fig. 10.23: Quectel Ec25 - Virtual Com Ports Dlt-V72 With Celeron Processor - Advantech-DLoG DLT-V72 Series Operating Instructions Manual

WWAN configuration
DLT-V72 with Celeron processor
The virtual COM ports must be set up as shown in the figure:

Fig. 10.23: QUECTEL EC25 - Virtual COM ports DLT-V72 with Celeron processor

10.6.2.2. Test communication between DLT-V72 and WWAN Radio card
The open source software Tera Term, for example, can be used to test that the DLT-V72 can
communicate with the Radio card.
This software can be downloaded from the following URL, for example (website available at time of
writing this operating manual, dated Feb 2019):
Perform the following steps:
Open the AT port via Tera Term.

 Connect to the AT port.
In the AT port, enter the command AT.

If the response received is OK, communication is present.
DLT-V72 Operating Instructions V2.50 Preliminary
https://www.heise.de/download/product/tera-term-51776
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