Connectors
UM0426
18/46
Doc ID 13472 Rev 5
3.5
RS-232 connector CN5 with RTS/CTS handshake support
Figure 12.
RS-232 connector CN5 with RTS/CTS handshake support (front view)
3.6 RS-232
connector
CN6
Figure 13.
RS-232 connector CN6 (front view)
Table 15.
RS-232 connector CN5 with full modem control support
Pin number
Description
Pin number
Description
1
NC
6
Connect to Pin 4
2
USART2_RXD
7
USART2_RTS
3
USART2_TXD
8
USART2_CTS
4
Connect to Pin 6
9
NC
5
GND
Table 16.
RS-232 connector CN6
Pin number
Description
Pin number
Description
1
NC
6
Connect to Pin 4
2
USART1_RXD
7
Connect to Pin 8
3
USART1_TXD
8
Connect to Pin 7
4
Connect to Pin 6
9
NC
5
GND
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