Pin Header For Com4, 3.3V Ttl (Tx/Rx/Rts/Cts) (Cn6) - Advantech RSB-4210 Evaluation Kit User Manual

2.2.6 Pin Header for COM4, 3.3V TTL (TX/RX/RTS/CTS)
(CN6)
It is a 4-wires (TX/RX/RTS/CTS) 3.3V TTL signal. It provides connections
for serial devices (For example, GPS, GSM and Bluetooth devices...etc.)
or a communication network.
Figure 2-11 Pin Header for COM4, 3.3V TTL (TX/RX/RTS/CTS)
Pin
1
3
5
7
9
RSB-4210 Evaluation Kit User Manual
Description Pin
N/C
UART4_RXD
UART4_TXD
N/C
GND
20
Description
2
N/C
4
UART4_RTS
6
UART4_CTS
8 N/C
10 N/C