Holosys Wireless M-Bus OMS Receiver WR is a device which extends wired M-Bus installations with meters equipped with Wireless M-Bus OMS modules.
Mapping wireless telegrams to primary and secondary addresses allows integration of wireless meters to the majority of existing and new M-Bus wired installations. The advanced system architecture ensures the extended receiving range for remote meters equipped with Wireless M-Bus transmitters.
The device is using the M-Bus bus for power supply and communication with the central unit. Using just one M-Bus master device (e.g. Holosys M-Bus M250GL) it is possible to connect up to 12 Holosys Wireless M-Bus OMS Receiver WR devices what makes the device especially suitable for building large fixed wireless networks for remote automatic meter reading (AMR fixed networks).
Manual mapping - The mapping table is entered manually during the device configuration. Radio telegram is identified by the Wireless M-Bus address and the selected primary M-Bus address is assigned to that device.
8 data bits, even parity, 1 stop bit
Texas Instruments TSS 721A M-Bus Transceiver
By using primary and secondary addressing or by using extended secondary addressing (fabrication number)
by using the M-Bus bus
by using the M-Bus, non-standard M-Bus command
Direct reading of the remote radio device
868 MHz SRD band
connector SMA female
From the M-Bus bus
Current (max.): 30mA (20UL), 1UL=1,5 mA
Dimensions (w x h x l): 77 x 77 x 35 mm
Color: Light gray
Protection type: IP20 (higher level of protection on request)
Mounting: Bolts on the mountable surface
Conection dimension: M-Bus to 2,5 mm²
-20°C ... + 50°C
10% ... 70% relative humidity (without condensation)
~ 95 g