DESCRIPTION
PMM0912i is an isolated multi serial to UART converter module, it can be considered as the 3 in 1 media board. It can convert the three different serial communication types; RS485, RS422 and RS232 to UART.
All the serial communication types can’t work all together so PMM0912i has a digital input selector that allows the user to choose which media is currently in use so that only one media to UART conversion is running at a time
The module contains power and data isolator which protects the circuitry and CPU from overvoltage. It can operate normally with a voltage range of (3V to 3.6V) or (4.5V to 5.5V) and needs an external power supply.
BOARD PINOUT
SCHEMATIC DIAGRAM
DIMENSIONS
