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