ADLINK Technology GEME-4000 Series, Руководство пользователя

Страница: 23 / 73

Base Unit
•
15
„ 2.2.5 COM1/COM2
GEME offers two serial communications interface ports: COM 1 and COM 2.
IRQ and Address Setting
The IRQ and I/O address range are both assigned by BIOS. The table below
describes COM1/COM2 default settings:
COM Port Mode Bass address IRQ
COM 1 RS-232 3F8h IRQ4
COM 2 RS-232 2F8h IRQ3
COM1/COM2 Pin Assignment
Pin RS-232
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
Note: COM2 can also support RS422 or RS485 (with Auto direction function) by
adjusting jumper. The customer has to request this feature while placing
the order.
COM 2
Pin no. RS422 RS485
1 TX- D-
2 TX+ D+
3 RX+
--
4 RX- --
5 GND GND
6 --
--
7 -- --
1
6
5
9