6.2 Transparent reading
MultiPort 250L is equipped with the following communication possibilities for reading from e.g. remote reading systems,
control systems and various controllers with M-Bus interface:
•
USB
•
RS-232
•
RS-485
•
GSM/GPRS (optional equipment)
Communication through the above-mentioned ports is transparent and includes collision detection.
6.3 Light Emitting Diodes
The master has four light emitting diodes on its front plate.
6.3.1 Power
Green light emitting diode which is lit when the master is connected to supply power of 100-240 V, 50-60 Hz.
6.3.2 Request
Orange light emitting diode which flashes briefly when a command or a request from the master is transmitted to the
M-Bus network.
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