Diehl CORONA E Guide D'installation page 26

Connecting
cable/colour
green/pulse 2
yellow/pulse 1 Forward pulse or
When connecting the L-Bus or the pulse outputs, always
connect GND (earth) as well.
Galvanic isolation
If there is a simultaneously connected M-bus,
galvanic isolation between the M-Bus and the
pulse output must be provided.
5.2 M-Bus
ƒ
Polarity reversal protection
ƒ
Ground (brown) is not required
ƒ
The meter is supplied with power from the M-bus
The cabling for an M-Bus system requires no specified
cable routing or network (e.g. star, series, etc.).
The preferred read interval should be at least
10 seconds.
When communicating via the M-Bus, the button
and the optical interface cannot be used simul-
taneously.
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M-Bus/Pulse
IP 68
Reverse/forward
pulse or direction
signal
pulse
Deutsch
English
L-Bus/For-
ward pulse
IP 68
L-Bus
Forward
pulse
Français
M-Bus
IP 54
M-Bus
-