Hardware Setup
2-11
2.3.9.
Additional COM Port Connection Header
This header provides one external COM2 port connection.
Pin
Signal Pin
Signal
1
DCD (Data Carrier
Detect)
2 RXD
(Receive-Data)
3 TXD
(Transfer-Data)
4
DTR
(Data-Terminal-Ready)
5 GND
6 DSR
(Data-Set-Ready)
7
RTS
(Request-to-Send)
8 CTS
(Clear-to-Send)
9
RI (Ring-Indicator)
10
VCC (+5V)
User’s Manual
