Where is serial port RS-232 on Mazak 530 VCS

I recently received a new Mazak 530 VCS. I would like to use the serial port, but I cannot find it. When the service technician from Mazak was here, he didn't know where it was either. (The Mazak service technician didn't even know what RS-232 is...:eek:)

Attached is a picture of the control cabinet, do any of you guys know where the RS-232 serial port is? Is it a normal 25 pin connector, or something different?

Thanks!

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