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Copyright © 2009 NEXCOM International Co., Ltd. All Rights Reserved.
15
NDiS 541 User Manual
Chapter 2: Jumpers and Connectors
Serial (RS232) Ports
Connector size: DB-9 port
Connector location: COM1
Pin
Definition
Pin
Definition
1
SP_DCD_A
2
SP_RXD_A
3
SP_TXD_A
4
SP_DTR_A
5
GND
6
SP_DSR_A
7
SP_RTS_A
8
SP_CTS_A
9
SP_RI_A
10
SP_DCD_B
11
SP_RXD_B
12
SP_TXD_B
13
SP_DTR_B
14
GND
15
SP_DSR_B
16
SP_RTS_B
17
SP_CTS_B
18
SP_RI_B
6
1
5
9
15
10
14
18
COM RX/TX Connector
Connector size: 2x6 pin
Connector location: CON1
Pin
Definition
Pin
Definition
1
TXD-6
2
RXD-6
3
GND
4
TXD-4
5
RXD-4
6
GND
7
TXD-5
8
RXD-5
9
GND
10
TXD-3
11
TXD-3
12
GND
6
1
12
7