Chapter 7 Communications 59
Computer Connections for RS-232: COM1
Figure 7-8 RS-232 Simple 3-Wire
Connection, 25-pin
Figure 7-9 RS-232 Simple 3-Wire
Connection, 9-pin
Figure 7-10 RS-232 Hardware
Handshaking Connection, 25-pin
Figure 7-11 RS-232 Hardware
Handshaking Connection, 9-pin
