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M3
12.
OPTIONAL M-BUS MODULES
12.1. MB-IO Module (see also chap 5.3.5)
As an option, it is possible to connect up to 4 M-Bus modules with 8 inputs/output
isolated by opto-coupler. (ref MB-IO)
The 8 outputs are similar to the « open collector PNP » type. They can be used with
an external power supply 12 to 30 VDC maximum. The maximal output current
drained by each output is 50mA
The 8 inputs represent a 2.2kOhms load connected to the 0 volt.
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