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Holosys Wireless M-Bus OMS Receiver WR

  • Up to 512 Wireless M-Bus meters
  • In accordance with EN 13757-3 and EN 13757-4
  • OMS v4.x.x. compatible
  • Wireless M-Bus modules mapping to primary and secondary wired M-Bus addresses
  • Easy implementation in existing M-Bus installations
  • AES-128 bit decryption feature
  • Automatic configuration operation mode (zero config)
  • Suitable for implementation in fixed wireless networks for remote automatic meter reading (AMR fixed networks)

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).

Key Features

  • Stores up to 512 radio telegrams from different Wireless M-Bus OMS meters
  • Maximum size of the Wireless M-Bus radio telegram is 150 bytes
  • AES-128 bit decryption feature
  • User configurable password for encrypted radio telegrams
  • Additional data for each radio telegram received (last reception RSSI, time of the last reception, total number of received telegrams)
  • Wireless M-Bus OMS modules readout by using standard M-Bus commands
  • Wireless M-Bus OMS modules mapping to primary M-Bus addresses (Holosys and Hydrometer RF modules)
  • Wireless M-Bus modules mapping to secondary M-Bus addresses (Holosys and Hydrometer RF modules)
  • Direct mapping - Wireless M-Bus address of the radio telegram becomes the wired M-Bus secondary address
  • Extended mapping - Wireless M-Bus address of the 
  • Wireless M-Bus OMS transmitter (meter) and the secondary address of the Holosys Wireless M-Bus OMS 
  • Receiver WR generates an extended secondary address (address with fabrication number)
  • Radio telegram life time configuration

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.

M-Bus Interface

Data transmission rate

2400 baud

Communication parameters

8 data bits, even parity, 1 stop bit

M-Bus interface

Texas Instruments TSS 721A M-Bus Transceiver

M-Bus addressing

By using primary and secondary addressing or by using extended secondary addressing (fabrication number)

Device configuration

by using the M-Bus bus

Access to the list of the received radio telegrams

by using the M-Bus, non-standard M-Bus command

Direct reading of the remote radio device

Direct reading of the remote radio device

Radio Interface

Frequency

868 MHz SRD band

Antenna

connector SMA female

Data transmission rate

100 Kchips

Standard

EN 13757-4

General Data

Power supply

From the M-Bus bus

Current (max.): 30mA (20UL), 1UL=1,5 mA

Housing

Material: Thermoplastic

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

Operating temperature range

-20°C ... + 50°C

Humidity

10% ... 70% relative humidity (without condensation)

Weight

~ 95 g

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