IEI Technology ECK-3699GH, User Manual, Page: 48 / 181

ECK-3699GH Embedded System
6 NC
Table 3-15: Mouse Connector Pinouts
3.3.6 Serial Port Connectors
CN Label: COM_C1
CN Type: D-sub 9 male connector
CN Location: See Figure 3-9 (labeled number 9)
CN Pinouts: See Table 3-16
The serial ports can be connected to a serial communications device directly.
Figure 3-14: External Serial Port Connector
PIN Description
1 DATA CARRIER DETECT (DCD1)
2 RECEIVE DATA (RXD1)
3 TRANSMIT DATA (TXD1)
4 DATA TERMINAL READY (DTR1)
5 GROUND (GND1)
6 DATA SET READY (DSR1)
7 REQUEST TO SEND (RTS1)
8 CLEAR TO SEND (CTS1)
9 RING INDICATOR (RI1)
Table 3-16: External Serial Port Pinouts
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