User Manual

11
Smart Infrastructure A6V11742346_en--_b
2020-08-24
Connection terminals
The device as the following connection terminals / LEDs.
A Mains voltage AC 230 V F
Connections to the M-bus web
server WTV676.. or master level
converter if the level converter is
used as repeater.
B
Output for web server WTV676 power
supply (DC 24 V)
C
Connect the power supply (Vout LC) to the
level converter (Vin LC)
(do not use for other purposes)
D
Serial interface RS232 and RS485 to
connect to a PC or M-bus master
G Electrical grounding
H Status LEDs
I Push button for firmware update
RS-232
A = TX
B = RX
C = GND
RS-485
D = REF
E = D-
F = D+
E Connections M-bus devices or repeaters