User`s manual

EP850 All-In-One EPIC Board User’s Manual
Jumpers and Connectors
21
2.4.9 Serial Port Interface (CN10, CN12)
The board has two onboard serial ports, and +5V/12V power for Pin 1 ,
Pin 8, or Pin 9, which depends on jumper setting. CN12 is a standard
DB9, and CN10 a combo connector.
CN12
Pin Signal
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
CN10
Pin Signal Pin Signal
1
Data Carrier
Detect (DCD)
2
Data Set Ready
(DSR)
3
Receive Data
(RXD)
4
Request to Send
(RTS)
5
Transmit Data
(TXD)
6
Clear to Send
(CTS)
7
Data Terminal
Ready (DTR)
8 Ring Indicator (RI)
9 Ground (GND) 10 NC