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Chapter 1: Product Introduction
Copyright © 2011 Nexcom International Co., Ltd. All Rights Reserved
9
VTC 6201 Series User Manual
RS232 Connector
Connector size: DSUB-9 PIN
Connector location
9
1
5
6
Pin
Definition
Pin
Definition
1
DCD (RS232)
2
RXD (RS232)
3
TXD (RS232)
4
DTR (RS232)
5
GND
6
DSR (RS232 )
7
RTS (RS232)
8
CTS (RS232)
9
RI (RS232)
9
1
5
6
RS485/RS232 (COM2)
Pin
Definition
Pin
Definition
1
DCD/ TX-/RX- (RS485)
2
RXD/ TX+/RX+(RS485)
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
COM Port mapping table (VTC 6201/ VTC 6201-M)
Real COM Port
Number
I/O Port address
IRQ number
COM port number on
the Rear panel
COM1
3F8H
IRQ4
COM1
COM2
2F8H
IRQ3
COM2
COM3
3E8H
IRQ5
COM3
COM6
238H
IRQ10
GPS module
Connector pin definition
Connector pin definition (VTC 6201/VTC 6201-M COM1,COM3)