![](/images/new-backgrounds/1315723/31572343x1.webp)
Serial port Header
(see p.10 No. 28)
1
RRXD1
DDTR#1 DDSR#1
CCTS#1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
This COM1 header supports a serial port module.
2 2
(see p.10 No. 28)
1
RRXD1
DDTR#1 DDSR#1
CCTS#1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
This COM1 header supports a serial port module.
2 2