12. X5xx I/O Expansion Boards
12.1 X500: RS232 * 1
12.1.1 Specifications
For
I-7188XC
Parallel I/O :
RS-232 port :
1
COM3 : TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND
16550 compatible
Internal FIFO : 16 bytes
Transmission speed: 115.2K BPS max.
Modem control
Isolated : none
12.1.2
Pin Assignment & Jumper Setting
(X500)
COM2
Figure 1
Note:
There are two type of functions in X500.
1.
COM3 : TXD, RXD, RTS, CTS, DSR, DTR, DCD, RI, GND
This function without case.
2.
COM3 : TXD, RXD, GND
This function with case.
I/O Expansion Bus for 7188X/7188E User’s Manual, Jan/2005 v1.5, 7PH-000-15---92