T3000 BB hardware question

Hi,

Just start working with a T3000 and have 2 basic questions

  1. Is it normal that there is no USB port ?
  2. Manual state that you can use a 12V or 24V AC/DC power supply, but the physical board only mention 24V, which one is right
  3. The manual output switch have 3 options H O A, I suppose A is automatic, but what is H O meaning?

Thank you

1- no USB port is normal.

2 - 24Vac is most common but the system accepts the 12 to 24V ranges in Vac/Vdc.

3 - HOA is industry standard for: Hand - Off - Auto. Hand activates the output, off deactivates the output and Auto allows the program and user to control the output.

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