User manual

Layout Description
12
4.1.18. X24 IF Ten-way Pin Header
Pin-header X24 has ten contacts in 2.54 mm grid pitch. It has identical RS232 signals to
X7 and is an alternative assembling. It corresponds to USART2 of the AT91SAMA5D3X.
RI can be powered by 5V by setting jumper J9 (default unset).
Pin Assignment Processor Pin
1 -DCD PE4/A4
2 -DSR PE5/A5
3 RXD PE25/A25/RXD2
4 -RTS PE24/RTS2/A24
5 TXD PE26/NCS0/TXD2
6 -CTS PE23/A23/CTS2
7 -DTR PE6/A6
8 -RI PE3/A3
9 GND GND
10 NC NC
Table4.12.X24 Pin Assignment
4.1.19. X25/X30 Nine-way Relais Pin Header
Pin-header X25/X30 has nine contacts in 3.5 mm grid pitch. X19 and X28 are identically
assigned. The Pins are connected to three independently operating SPDT Relais. Refer to
the schematics AppendixF, PanelA5 Schematics for details.
Pin Assignment Coil Pin
1 R1B
2 COM
3 R1C
PB10/GTXER/RF1
4 R2B
5 COM
6 R2C
PB11/GRXCK/RD1
7 R3B
8 COM
9 R3C
PB12/GRXDV/PWMH3
Table4.13.X25 Pin Assignment