Wiren Board 5: RS-232 Extension Module
This is the approved revision of this page, as well as being the most recent.
Hardware
The module is based on the MAX202 chip and provides a +/- 10V signal levels.
Pinout
RS-232 signals goes to terminals extansion module O1-O3.
Pinout:
| Terminal | Function |
|---|---|
| O1 | RX |
| O2 | TX |
| O3 | GND |
Operation
Port is available in the system as
- /dev/ttyAPP2 - when installed in first slot for extension module (MOD1)
- /dev/ttyAPP3 - when installed in second slot for extension module (MOD2)
For work you need to disable hardware flow control.