Contec VPC-1600, User Manual, Page: 73 / 115

5. Each component function
66
VPC-1600 User’s Manual
Serial port interface
RS-232C port (COM1,COM2,COM3,COM4,COM5,COM6)
Six RS-232C-compliant serial port connectors are provided. Resources can be either assigned or
reserved for each port independently through BIOS setup (see Chapter 4).
Table 5.3 SERIAL1 to 6 I/O address, interrupt
COM Serial Port
RS-232/422/485
Control Option
I/O Address Interrupt
COM1
Enabled
Disabled
RS-232 3F8h
IRQ4
COM2
Enabled
Disabled
RS-232
RS-422
RS-485
Loopback
2F8h
IRQ3
COM3
Enabled
Disabled
RS-232 260h
IRQ10
COM4
Enabled
Disabled
RS-232 268h
IRQ11
COM5
Enabled
Disabled
RS-232 270h
IRQ10
COM6
Enabled
Disabled
RS-232 278h
IRQ7
The factory default settings of the BIOS are as follows.
Serial Port : [Enabled]
RS-232/422/485 Control Option : [RS-232]
With this product, you can use the serial ports from COM1 to COM4.
COM5, COM6, and RS-422/485 are not supported.
Table 5.4 Serial port connector
Connector D-SUB 9 Pin (MALE)
Pin No. Signal Function
1 DCD Input
2 SIN Input
3 SOUT Output
4 DTR Output
5 GND -
6 DSR Input
7 RTS Output
8 CTS Input
9 RI Input
CAUTION
1 5
9 6
No.4-40UNC
inch nut