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

Certificates

Documentation

Operation manual (RUS)

Description of Measuring Instrument (RUS)

Passport (RUS)

Verification procedure (RUS)