Kamstrup MULTICAL 402 - Testing the Function; Electrical Connection

9.5 M-Bus + pulse inputs, type 402-0-20
M-Bus module with primary, secondary and
enhanced secondary addressing.
The module is connected to an M-Bus master
via terminals 24 and 25 using a twisted pair.
The polarity is unimportant.
The module is powered by the connected
master.
9.6 M-Bus + pulse outputs, type 402-0-21
M-Bus module with primary, secondary and
enhanced secondary addressing.
The module is connected to an M-Bus master
via terminals 24 and 25 using a twisted pair.
The polarity is unimportant.
The module is powered by the connected
master.
9.7 M-Bus module with MULTICAL® III data package + pulse
inputs, type 402-0-29
The M-Bus module 402029 comprises the
same data packet as M-Bus module 6604
for MULTICAL® III/66-C and module 660S for
MULTICAL® Compact/MULTICAL® 401.
The module can e.g. be used together with the
old M-Bus master with display, old regulators
and old reading systems not supporting the
newer M-Bus modules.
Mounting an external antenna it must be secured that the antenna
cable does not become caught between the PCB and the stay of
the cover.
Replacing or mounting modules the meter must be without current.
The same applies when mounting an external antenna.
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