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Remote data retrieval from M-Bus devices via the RS232 serial communication line in building automation. From the point of view of robustness the converter cannot be utilized in industrial environments. The most frequently used M-Bus slave devices are heat, water and electricity consumption meters.
Description

The RS232toMBus-4SL converter provides a RS232 to M-Bus interface conversion. There is no change in the content of the messages or communication speed during the conversion. The maximum number of M-Bus slave devices that can be connected is four.

Main characteristics

M-Bus port
• Connection of 1 to 4 M-Bus slave devices.
• Surge protection guaranteeing superior durability against overvoltage.
• Current protection against overload and short circuit on the communication line with
• LED status indication.
Power supply
• Wide range of power supply voltages. DC 8-28V and AC 8-20V.
• Overvoltage protection with LED indication of power supply.
RS232
• Signals: TxD, RxD and GND
• Protections against overvoltage.
Mechanical construction
• Plastic box with mounting on 35 mm DIN rail.
• Narrow box. 17.5mm mounting width on the DIN rail.

Guarantee of quality

• Each converter passes through several functional electrical tests during the production.
Additionally a communication test is performed after final assembly.
• EMC certification for habitable environments by an accredited laboratory .
• Solid design and construction based on many years practical experience.

Parameters summary

Number of devices that can be connected : 1 to 4 SLAVE devices
Baud rate : 300 - 9600 bps
Surge protection: M-Bus, power port
Power: DC 8-28V, AC 8-20V
Power consumption: 0.3W to 1W (depends on load)
Operating temperature range: 0°C to 80°C
Dimensions: 56.5 x 17.5 x 97.5 mm

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