Contec PT-S959 Series, Руководство пользователя, Страница: 33 / 85

4. Each Component Function
26
PT-S959W10 User’s manual
Serial Port Interface: SERIAL A - B
SERIAL A,B
The product has 2 ports of RS-232C compliant serial ports supporting up to a baud rate of 115,200bps
with a 16-byte transmission-dedicated data buffer and a 16-byte reception-dedicated data buffer. You can
use “Chapter 5 BIOS Setup” to configure an I/O address, interrupt and unused state for each of the ports
independently. (The same I/O address and IRQ cannot be shared with any other device.)
Please refer to “Chapter 6 I/O Port Addresses”
for more information on I/O address and register function.
Table 4.6. SERIAL A, B I/O Addresses and Interrupts
SERIAL I/O address Interrupt
A 3F8h - 3FFh
IRQ 4
B 2F8h - 2FFh IRQ 3
Table 4.7. Serial Port (A, B Connector)
Connector used on the
product
9-pin D-SUB (MALE)
Pin No. Signal name Meaning Direction
1 CD Carrier detect Input
2 RD Received data Input
3 TD Transmitted data Output
4 DTR Data terminal ready Output
5 GND Signal ground -----
6 DSR Data set ready Input
7 RTS Request to send Output
8 CTS Clear to send Input
9 RI Ring indicator Input