Controller with simplified functionality Don-Turbo 421-Lt

Purpose:

The controller of simplified configuration is used for data collection from gas meters and computers with the digital RS-232\ RS-485 interface in the “transparent channel” mode.

The controller has the following interfaces:

  • USB;
  • RS 232;
  • RS 485.

Depending on the involved interfaces, the controller can operate as an interface converter or an external GSM-modem:

Interfaces Operating mode
RS 232 – RS 485 RS 232 – RS 485 interface converter
RS 232 – USB RS 232 – USB interface converter
RS 485 – USB RS 485 – USB interface converter
RS 232 – Modem external modem with RS 232 interface
RS 485 – Modem external modem with RS 485 interface
USB – Modem external modem with USB interface

Configurations:

Depending of configuration, the controller can be equipped with a spark protection barrier and an external antenna:

Description Spark protection barrier
GSM antenna
KDT-421 ai no integrated
KDT-421 ao no external
KDT-321 ai yes integrated
KDT-321 ao yes external

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