This is a bespoke cable used to connect Crouzet Millenium 3 controllers directly to a HMI, PC or Laptop with a serial port. For connection to a USB port a serial to USB converter is required and one is included in the package. Package includes:- Crouzet M3 serial cable. Part No. 88970102. Digitus USB to Serial Adaptor. Part No. DA-70167
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