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Thanks @Wez, I enable the telemetry on aem pro and only setting 3 parameters so I can get the reading correct. I will add pictures so you can see what I'm doing. However, my data on hyperterminal is still unreadable.

Morning @Wez, the problem I am having is I can not see header byte 0x55 from hyperterminal, putty, or python from the raw data package to decode it. I get weird characters in both putty and hyperterminal so I'm not sure if I'm doing it right. Aem v1 serial to rs232 baud rate of 19200

Hi@Wez, sorry to bring up an old topic, but how to you read the telemetry DataStream. When i pull in the data, i get odd value like UTF-16. do you have anymore input on this AEM V1 to pc.