Product Description
Module interface definition:
Module 4P Terminal side:
VCC: + 3.3V/5V
TXD : The module's TTL (UART) to send, connected to the microcontroller's RXD receiver pin;
RXD : The module's TTL (UART) receiver, connected to the microcontroller TXD send pin;
GND : The module ground wire (this wire must be connected with the ground wire of microcontroller system);
Module 5P Terminal side:
R + / A : A-Pin of this module, connected to T + / Y pin of other 422 modules;
R- / B : B-Pin of this module, connected toT- / Z pin of other 422 modules;
T- / Z -: Z-Pin of this module, connected to R- / B of other 422 modules;
T + / Y : Y-Pin of this module, connected to R + / A pin of other 422 modules;
GND : Ground wire;
Package Included:
1xRS422 to TTL / UART / MCU Serial Port Signal Mutual Conversion Module
Module 4P Terminal side:
VCC: + 3.3V/5V
TXD : The module's TTL (UART) to send, connected to the microcontroller's RXD receiver pin;
RXD : The module's TTL (UART) receiver, connected to the microcontroller TXD send pin;
GND : The module ground wire (this wire must be connected with the ground wire of microcontroller system);
Module 5P Terminal side:
R + / A : A-Pin of this module, connected to T + / Y pin of other 422 modules;
R- / B : B-Pin of this module, connected toT- / Z pin of other 422 modules;
T- / Z -: Z-Pin of this module, connected to R- / B of other 422 modules;
T + / Y : Y-Pin of this module, connected to R + / A pin of other 422 modules;
GND : Ground wire;
Package Included:
1xRS422 to TTL / UART / MCU Serial Port Signal Mutual Conversion Module
Product Information
- The module is suitable for 3.3V/5V TTL and RS422 signal mutual conversion, RS422 level is full-duplex level signal, the use of this module can be achieved SCM serial port and RS422 signal conversion.
- With over-voltage and over-current protection circuit real-time protection RS422 level signal to protect the MAX490 chip's normal work.
- The module except for the pin, Use SMD components to ensure better signal transmission, thereby enhancing the system EMC and other characteristics, the module as possible in more harsh environments.
- With power and send & receive Indicator lights.
- The back of the product with wiring diagram.
