Contec VPC-3100-G Series, Reference Manual

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Product Nomenclature and Function
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VPC-3100-G Series Reference Manual
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9. Serial Port Interface: SERIAL A, B, C, D, E
The product has four RS-232C compliant serial ports and one RS-232C/RS-422A/RS-485 compliant
serial port that offer a baud rate of 115,200bps(max.) with a 16-byte transmission-dedicated data
buffer and a 16-byte reception-dedicated data buffer.
You can configure an I/O address, interrupt, and unused state for each of the ports on OS
independently. (The same I/O address and IRQ cannot be shared with any other device.).
Note that the I/O addresses and interrupts displayed on BIOS may not match the I/O addresses and
interrupts displayed on OS. (Addresses and interrupts are automatically assigned as BIOS
specifications).
SERIAL I/O Addresses and Interrupts
SERIAL
Display on BIOS *
Reference
Display on CONTEC recovery OS (Windows) *
I/O address Interrupt I/O address Interrupt
A 2E0h IRQ7 2F0h - 2F7h IRQ11
B 2F8h IRQ3 2F8h – 2FFh IRQ3
C 2E8h IRQ7 2E8h - 2EFh IRQ10
D 3F8h IRQ4 3F8h - 3FFh IRQ4
E 3E8h IRQ7 3E8h - 3EFh IRQ7
Serial port connector
Connector used on the product 9-pin D-SUB (MALE)
RS-232C RS-422A RS-485
Pin No. Signal Name Pin No. Signal Name Pin No. Signal Name
1 DCD 1 TX- 1 DATA-
2 RD 2 TX+ 2 DATA+
3 TD 3 RX+ 3 N.C.
4 DTR 4 RX- 4 N.C.
5 GND 5 GND 5 GND
6 DSR 6 N.C. 6 N.C.
7 RTS 7 N.C. 7 N.C.
8 CTS 8 N.C. 8 N.C.
9 RI 9 N.C. 9 N.C.