Wireless M-Bus Module

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Wireless M-Bus Module

Product ID.：WL35X

Communication mode： UART (Local), RF (Remote)

WL35X wireless M-Bus module is a high performance wireless communication module developed by Witlink. It complies with European standards EN 13757-3 and EN 13757-4 and supports wireless M-Bus mode S, T, R2 and C. User can configure module working mode via AT command sent through UART to satisfy needs of various applications. WL35X adopts high performance wireless chip to achieve an excellent communication. Boast of low power, it is ideal for battery-operated scenes which have a strict requirement for power consumption. With smaller dimension, the module is better for PCB layout and is much easier to be embedded in the target system.

  • Main Functions
  • Technical Parameters
  • 1. Conform to EN13757-3 and EN13757-4:2013 mode S, T, R2 and C
  • 2. OMS compliant
  • 3. Encryption: AES mode 5/6
  • 4. Dimension: 12.7 × 23.6 × 3.0 mm
  • 5. UART interface (TTL)
  • 6. Power supply: 2.0 ~ 3.8V
  • 7. Sleep mode is ideal for battery-operated applications (such as water, thermal and gas metering).

Item

Parameter

Unit

Note

Communication mode

R2, S1, S2, T1, T2, C1, C2

-

 

Configuration method

Via AT command

-

 

Baud rate

19200 (default), 230400 (Max.)

bps

 

Frequency Band

868.09 ~ 869.5

MHz

 

Channel No.

13

-

 

Air rate (R2/S/T/C)

4.8/ 32.768/ 100/ 100

kcps

 

Programmable output power

Max. 25 mW (14 dBm)

-

Typ. 10 dBm

Sensitivity

R2 mode

-108

dBm

Sensitivity

S mode

-106

 

T mode

-105

 

C mode

-105

 

Power supply

2.0 ~ 3.8

V

 

Tx current

37

mA

Typ.@10dBm

Rx current

17

mA

Typ.

Sleep current

0.5

μA

Typ.

Communication range

1000

m

Line of sight, with external antenna

Operating temperature

-40 ~ +85

°C