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Technical data
Power supply
Operating voltage
AC frequency
Power consumption
Maximum power consumption
Internal fuse
Fusing of supply lines
Pins
M-bus master
(terminals 6 and 7)
M-bus slave
(terminals 1 and 2)
Mini-USB-B
Interface
USB (2.0)
RS-232
M-bus
Reference standard
Baud rate
M-bus USB insulation
Max. number of M-bus devices per
level converter
Max. number of M-bus devices per
level converter network
Max. number of level converters per
network
Bus power
Bus current
Protection against short circuits
14
Smart Infrastructure
AC/DC 24 V +/- 10 %
50/60 Hz
3 W + 0.07 W for each connected M-bus device
12 W, 12 VA
PTC resistance and varistor
Fusible links
Circuit breaker
or
Power supply with current limitation at 10 A
Connections for M-bus meters
and
Connections for following level converters, if this one is used as the
master.
Non-isolated connections to connect to a M-bus web server
and / or
Connections to connect the prior level converter, if this level converter is
used as a slave.
To connect to a laptop with installed ACT531 software
Non-isolated plug: Mini-USB-B
Data rate: 1.5 Mbps and 12 Mbps.
Max. cable length: 3 m
Galvanically isolated connection with a laptop/data logger
Max. cable length: 3 m
●
Terminal 3 [A]: TX laptop/data logger receiving line
●
Terminal 4 [B]: RX laptop/data logger transmission line
●
Terminal 5 [C]: GND interface reference voltage
EN13757-2 (physical layer)
300 bps...9600 bps
1kV AC
60 (simple M-bus loads)
360 simple M-bus loads or 1,000 logical M-bus meters
1 master level converter and 5 slave level converters connected in parallel
or 6 level converters connected in parallel to a M-bus web server
WTV676..
Minimum 30 V
Maximum 40 V
Maximum 90 mA
Yes
Max. 10 A, slow
max. 13 A, type B, C, D per EN
60898
A6V10844290_en--_b
2019-10-21
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