MBusRepeater-XL, models 20, 45, 80, 120, 190

• Extension of M-Bus communication line over the standard distance (suitable for cca. over 1km).
• Galvanic separation of individual M-Bus line sections.
• Splitting of M-Bus line into multiple electrically independent branches.

Designed for use in industry, building automation and other similar applications for remote M-Bus data readout.

The repeater splits the M-Bus line into two galvanically separated M-Bus lines and enables message transfer between these two lines without message content changes. In case of a malfunction state on the M-Bus line (e.g. a short) this state willl not be carried over to the second separated line. On the primary line the repeater acts electrically as 2 slave devices (2 UL) - slave port. The separated line uses a standard M-Bus master port. Depending on the converter model the maximum number of M-Bus slave devices that can be connected is 20, 45, 80, 120 or 190.

The M-Bus repeater features a processor controlled monitoring of internal state, power supply state and M-Bus master port state. Operation and error states are indicated by status LEDs which simplify and make it easier to troubleshoot possible M-Bus communication errors.

M-Bus master port

• Connection of 1 to 20, 45, 80, 120 or 190 M-Bus slave devices depending on converter model.
• Surge protection warranting above standard level of protection against overvoltage.
• Current protection against overload and short circuit on the communication line.
• External voltage protection.
• Processor controlled monitoring of M-Bus line state with LED indication for various error states.
• Indication of M-Bus slave devices reply collision.
• Indication of slave devices presence on the M-Bus line.
• Indication of M-Bus line overload, short and capacitive overload.

Power supply

• Wide range of operating DC power supply voltages 12-30V (20-30V for the XL190 model).
• Overvoltage protection.
• Processor controlled monitoring of power supply voltage with indication of its correctness and errors.

M-Bus slave port

• Power consumption as 2 slave devices (2UL).
• Overvoltage protections.
• Galvanic separation from power supply and M-Bus line.

Mechanical construction

• Aluminium box with mounting on 35 mm DIN rail.

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