TTL To MBUS Master Module

Serial port toMBUSModule, used in water, gas, heat, the tableMBUSThe short circuit can be self-recovered when it is. The TTL level can be set. The bus has a short-circuit protection. The short circuit can be self-recovered when it is Withdrawn and the ultra-low power consumption under short circuit protection.

Compatible with a variety of TTL level module features, can be flexibleibly used in wireless RF to MBUS module, GPRS to MBUS, 485 to MBUS and other modules.

Module exports to Europe, The Middle East and other regions, commonly used in wireless RF to MBUS, GPRS to MBUS, 485 MBUS and other applications.

Note: The latest version of the module and the picture is slightly different, parameters / size / interface exactly the same.

 Features:

1,compatible3.3V,5VTTLLevel, level voltage can be set!

2, Bus output short circuit protection, short circuit status indication output, the bus short-circuit self-recovery!

3,meets theMBUSInternational standards and international standards!

4, Small size, low space cost, easy to install!

5, a complete system of shielding, communication is stable and reliable, with better EMC!

6, communication baud rate can be adapted to 300-9600! With the shop from the machine module limit communication baud rate up to 38400 error-free code!

7, the rated load range of data communications without spontaneous!

8, no data spontaneous phenomenon!

Note:Automatically shut down the bus after the module short-circuit, the bus ultra-low power consumption, the module automatically detects whether the bus is short-circuit can be automatically restored!

Interface Description:


 

1, VIN: power input port 5V-15V, the absolute maximum voltage can not exceed 18V, or damage the module

2, GND: systematically

3,RXD: external serial port (external device) RXD, high level

4, TXD: connect to the external serial port (external device) TXD, need external high

5,OVERLOAD: Short circuit indication output, the default high, short-circuit to low, can be left open

6, TTLVCC: TTL level voltage input, can not be left floating, you must input TTL level voltage

7, M: MBUS bus interface, the initial high level bus 30 ± 1V(customizable)

Note:

1,TTLVCC input 3.3V, TTL signal is 3.3V;

TTLVCC input 5V, the TTL signal is 5V; input other TTL for the input level signal.

2, TTLVCC input voltage can not exceed VIN input voltage.

Other parameters:

Input voltage VIN:Power input port 5V-15V, the absolute maximum voltage can not exceed 18V

Carrying capacity: The module can carry 12 standard MBUS slaves

Anti-static ability: ± 12KV

Operating temperature: -25 ~ 75 °

Storage temperature: -30 ~ 80 °