USR IOT USR-TCP232-T2 User Manual

USR-TCP232-T2 user manual www.usriot.com
Jinan USR IOT Technology Limited www.usriot.com
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3.2.3. UART Interface
UART can connect RS232 chip, UART has TXD/RXD signal wire. Take RS232 Level for example.
Diagram 3.2.3-1 UART Interface Design
If communicated with MCU (3.3V TTL), connect module’s TXD to MCU’S RXD, modules’ RXD to MCU’S TXD. If MCU 5V
TTL, need voltage conversion circuit, as follows:
Diagram 3.2.3-2 UART Level Switch Design
4. Module function
Here are the function of T2, below is the overall block diagram.

USR IOT USR-TCP232-T2 Specifications

General

Brand	USR IOT
Model	USR-TCP232-T2
Category	Control Unit
Language	English