cubloc:using_rs-232_on_the_cb400_405_405rt
Using RS-232 on the CB400/405/405RT
The CB400, CB405, and CB405RT modules have 3 serial ports exposed as 5V TTL UARTs.
| Channel | CUBLOC Port | Signal |
|---|---|---|
| 1 | P42 | RX |
| 1 | P43 | TX |
| 2 | P8 | RX |
| 2 | P9 | TX |
| 3 | P56 | RX |
| 3 | P57 | TX |
The CB400/405/405RT modules also have a built-in MAX232 level converter to convert the 5V TTL UART signals to +/-12V RS-232 signals. To utilize the level converter, connect a serial port's RX and TX pins to the TTLRXE and TTLTXE pins respectively, and then the RS-232 level signals for those pins will be available on the RXE and TXE pins.
The following image illustrates how to expose serial port 3 as RS-232.
cubloc/using_rs-232_on_the_cb400_405_405rt.txt · Last modified: 2023/09/11 13:33 by COMFILE Technology