M-Bus is a bus system, which is specially suited for communication with heat, cooling, water, electricity and gas meters.
The system consists of an M-Bus
Master and meters with M-Bus interface.
Various meter types and brands can be installed and co-exist in the same M-Bus network. The network is typically realised by the use of twisted pair cabling.

Installation & User Guide

Facts M-Bus Master MultiPort 250D

Remote reading with M-Bus
Up to 250 meters per M-Bus Master and by cascading, up to 1250 meters in a system
Supporting primary/secondary/enhanced
secondary addressing and wild card search with collision detection
300/2400/9600 Baud communication speed
Connection via RS-232, RS-485, USB, GSM/GPRS and optical eye
Local reading via display with backlight
PIN code protection

M-Bus Master MultiPort 250D uses FreeRTOS open source operating system.

For further information see http://www.freertos.org/

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