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2 Functionality
Kamstrup M-Bus Master MultiPort 250L is an M-Bus master designed for the connection of up to 250 meters with M-Bus
interface. The cable length of a master can be up to 2800 m depending on cable type.
The master supports primary, secondary and enhanced secondary addressing.
All inputs are galvanically separated from the M-Bus network.
MultiPort 250L can be accessed from all available communication ports. The integral port controller prevents collision in
case of simultaneous communication through more than one port.
When the port controller detects communication on one port, communication on other ports becomes impossible. When
communication on one port is finished, all ports are open to communication.
The Repeater function makes it possible to extend the size of the M-Bus network both as to number of meters and total
cable length. If one master and four repeaters are installed in a network, the total cable length can be extended to approx.
14 km and up to 1250 meters can be connected.
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55121391_B1_GB_12.2013
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