User`s manual

12.4 X503: RS232 * 1
12.4.1 Specifications :
For I-7188XB, I-7188XG, I-7188EX, I-7188EG
Parallel I/O :
RS-232 port : 1
COM3 : TXD, RXD, RTS, CTS, GND
16550 compatible
Internal FIFO : 16 bytes
Transmission speed: 115.2K BPS max.
Isolated : none
12.4.2 Pin Assignment :
(X503)
12.4.3 Programming :
I-7188E4 and X503 + I-7188EX are software the same.
I-7523 and X503 + I-7188XB are software the same.
For Software Installation & Demo Program, Refer to Section 2.2.2
I/O Expansion Bus for 7188X/7188E User’s Manual, Jun/2004 v1.4, 7PH-000-14---97