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Differences between PR311 and PR311SE controllers

Description:
What is the difference between PR311 and PR311SE controller?

Solution:

There are many differences between these two devices, here below are few features added to PR311SE:

  1. Firmware upgrade procedure,
  2. APB support,
  3. Extended number of functions for I/O lines,
  4. Hotel guests list,
  5. Improved reading distance,
  6. Control level for keypad backlight and buzzer,
  7. Support for operation in AC systems controlled through TCP/IP (UT-4).
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