Serial Port Interface Connectors - AXIOMTEK SBC86822 Series User Manual

SBC86822 Series All-In-One Mini ITX Board User's Manual
2.4.1 Serial Port Interface Connectors (CN1, CN3,
CN13, CN14, CN15)
CN3/CN13/CN14/CN15: COM2/COM4/COM5/COM6 Serial Port 10-pin (Box-
header) Connector Pin Assignment list
Pin Description
Data Carrier Detect
1
(DCD)
Receive Data
3
(RXD)
Transmit Data
5
(TXD)
Data Terminal
7
Ready (DTR)
9 Ground (GND)
NOTICE 1 COM2 for 10-pin box-header is optional.
COM1/COM2/COM3: COM1, COM2 and COM3 are DB-9 connectors is
default. Here is the pin assignment list for your reference.
Pin
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
NOTICE 1 COM2 connectors are COLAY to CN3 connectors.
COM1/COM2 Default setting is DB-9 connector.
26
Pin Description
Data Set Ready
2
(DSR)
Request to Send
4
(RTS)
Clear to Send
6
(CTS)
8 Ring Indicator (RI)
10 No connector
Description
CN3,
CN15
CN13, CN14,
COM1, COM2, COM3
Jumpers and Connectors