Hello dear all,
I am designing a multiprotocol communication port for my board and ı want to put 3 option for it, RS232, RS485 Half duplex and RS422. In my design, I want to permanently connect TX and RX pins of my controller to transciever's TX and RX pins. ANd also ı want to connect transciever's output to my ouput terminal in a permanent order. When i read the datasheet of the product ı am confused because some of the schematics are not clear enough and the document does not show how to use it for my usage purpose. I only want to be verified before i go for my design. This is what i want to do:
- I connect uC's pins to transcievers pins, like TX-->DY and RX-->RA. The connection will be directly connected.
- For terminal side of the circuit there are 3 different case. RS232, RS485, RS422.
Terminal Pin Configuration
Terminal Pin RS232 RS485 Half Duplex RS422 LTC2870 Pins
1 TX A Y --> Y
2 NC B Z --> Z
3 RX NC A --> A
4 NC NC B --> B
5 GND GND GND --> GND
If i do configuration of the terminal like above would it work or not?
When i read the document i understood that i have to design like that but unfortunatelly some of schematics made me confused.
Could you verify my usage scenario does work or not?
Regards
Burak Özdemir