Com'X200 Pulse Frequency

[LaurentCoene]

Had a great question from regarding the frequency that the Digital Input can support for WAGES meter on the Com'X200.

Here is the answer from my smart friend :

The spec for the Com'X200 defines a frequency of 25Hz: (20ms pulse up and 20ms down). However in practice, we have witnessed frequencies up to 50Hz, but officially of course, it's 25Hz. One way to get around that if it's not enough, might be to use an extra SIM10M as I read (here) that it could handle up to 50Hz. (this would need to be double checked obviously).

From what I understand, utility meters in South-Korea will go up to 33Hz. What frequency to you use in your country?