Legacy products

Galvanic separation

Operating temperature range

Power supply

Overvoltage durability

M-Bus devices

M-Bus line length

Designation

Application

RS232toMBus-4M

1 - 4
7-28V

Meters within a building (distances 100s of meters).

RS232toMBus-4SL

1 - 4
8-20V
8-28V
Local meters readout within rooms and adjacent rooms (distances 10s of meters).
 
RS232
 
Legend:
Power supply
AC - alternating current
DC - direct current
Galvanic separation
Yes - M-Bus line from power and RS232 port.
Yes - RS232 port from power source.
Yes - M-Bus line from power and RS232 port.
No - RS232 port from power source.
No - M-Bus line from power and RS232 port.
No - RS232 port from power source.
Operating temperature range:
Positive operating temperatures (on Celsius scale).
Negative operating temperatures (on Celsius scale).