IEI Integration ECW-281B_B2-D525 - Manual (Page 38)

ECW-281B/B2-D525 Embedded System
Page 25
PIN NO. DESCRIPTION
1 GND
2 TX+
3 TX-
4 GND
5 RX-
6 RX+
7 GND
Table 3-9: SATA Drive Connector Pinouts
3.3.9 Serial Port Connector (COM3, COM4, COM5 and COM6)
CN Label: COM
CN Type: 40-pin header (2x20)
CN Location: See
755
Figure 3-10
CN Pinouts: See
755
Table 3-10
The 40-pin serial port connector contains the following four serial ports: COM3, COM4,
COM5 and COM6. All these serial ports are RS-232 serial communications channels. The
serial port locations are specified below.
ƒ COM3 is located on pin 1 to pin 10
ƒ COM4 is located on pin 11 to pin 20
ƒ COM5 is located on pin 21 to pin 30
ƒ COM6 is located on pin 31 to pin 40
Figure 3-10: COM3 to COM6 Connector Pinout Locations