1 ethernet connectors (lan1, lan2), 2 rs-232 serial port (com1), 3 usb connectors (usb1) – IEI Integration ECW-281B_D2550 User Manual
Page 102: Table 6-21: ethernet connector pinouts, Table 6-22: rs-232 serial port pinouts, Table 6-23: usb connector (usb1) pinouts, Figure 3-18, Step 7, Align the mounting scre
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ECW-281B-D2550 Embedded System
Page 88
6.3.1 Ethernet Connectors (LAN1, LAN2)
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1 MD0+
5 MD2+
2 MD0-
6 MD2-
3 MD1+
7 MD3+
4 MD1-
8 MD3-
Table 6-21: Ethernet Connector Pinouts
6.3.2 RS-232 Serial Port (COM1)
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1 DCD
6 DSR
2 RXD
7 RTS
3 TXD
8 CTS
4 DTR
9 RI
5 GND
Table 6-22: RS-232 Serial Port Pinouts
6.3.3 USB Connectors (USB1)
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1 VCC
2 VCC
2 DATA-
4 DATA-
3 DATA+
6 DATA+
4 GROUND
8 GROUND
Table 6-23: USB Connector (USB1) Pinouts
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