L-843e.A1 phyBOARD-Mira i.MX 6 Hardware Manual
© PHYTEC Messtecknik GmbH
23
FIGURE 5: RS-232 or RS
‑
485 Interface Connector X23
TABLE 9: Pin Assignment of RS-232 /RS
‑
485 Interface Connector X23
Pin
Signal
Pin
Signal
10
NC
9
GND
8
7
X_UART3_RS485_A
6
X_UART3_CTS_RS232
5
X_UART3_TXD_RS232
4
X_UART3_RTS_RS232
3
X_UART3_RXD_RS232
2
NC
1
NC
An adapter cable is included in the phyBOARD
‑
Mira i.MX 6 Kit to facilitate the use of the UART3 interface. The
following figure shows the signal mapping of the adapter.