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Technical data
Power supply
Operating voltage
AC frequency
Power consumption
Maximum power consumption
Power consumption level converter (in series)
Internal fuse
Fusing of supply lines
Connections
M-bus master (terminals 9 and 10 on the level
converter)
M-bus slave (terminals 1 and 2 on the level converter)
Vin LC / Vout LC (terminals
11 and 12 on the level converter) /
(terminals 4 and 5 on the power supply)
Vout 24 Vdc (terminals 6 and 7 on the power supply)
Interface
RS-232 interface (terminals A, B, and C
level converter)
RS-485 interface (terminal D, E, and F on the level
converter)
M-bus master
Reference standard
Baud rate
Max. number of M-bus devices per level converter
Max. number of M-bus devices per level converter
14
Smart Infrastructure
AC 110...240 V
47...63 Hz
6 W + 0.07 W for each connected M-bus device
45 W, 45 VA
Vout: DC 24 V, max. 15 VA
≤3 mA (2 M-bus loads)
PTC resistance and varistor
Circuit breaker
or
Power supply with current limitation at 10 A
Connections for M-bus devices
and
Connections for the following repeater
Galvanically isolated connections to the M-bus web
server or to the previous master level converter if the
level converter is used as repeater.
Power supply for level converter/repeater
DC 24 V, max. 15 VA
Galvanically isolated connections to connect to PC/data
logger as master:
●
Connect to a PC:
–
Terminal A: TX (PC/data logger receiving line)
–
Terminal B: RX (PC/data logger transmission
line)
–
Terminal C: GND (interface reference voltage)
●
Connection to M-bus web server WTV676..:
–
Terminal 3[A] RS-232 with terminal 1[A] web
server
–
Terminal 4[B] RS-232 with terminal 2[B] web
server
–
Terminal 5[C] RS-232 with terminal 3[C] web
server
Non-isolated connection for connecting to a PC
●
Connections to connect to PC/data logger as
master:
–
Terminal D: REF (interface reference voltage)
–
Terminal E: D+ (Receive/transmission line
potential +)
–
Terminal F: D- (Receive/transmission line
potential -)
EN13757-2 (physical layer)
300 bps...9600 bps
250 (simple M-bus loads)
250 simple M-bus loads
Max. 13 A, type B, C, D
per EN 60898
A6V11742346_en--_a
2019-10-01
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