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Firmware Update Procedure

Please make sure:

  • The serial port mode is upgrade mode.
  • DIP switch is off-off position.
  • Make sure the RS232 cable is NULL modem cable. If there is no NULL modem cable, please use Virtual COM for upgrading.
  • Use 19200 Bd, 8-N-1 on both the device server and the host pc.
  • After upgrading firmware with manager software, reboot the serial device server and re-enter your settings (like baudrate, IP address etc.).

Firmware Version

This firmware version (31. Oct. 2007) fixes an auto direction timing problem:

History of Firmware

This firmware version (13. Jul. 2007) does significantly reduce answering delay time:

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