User manual

Connect Tech Blue Heat/Net User Manual
14 Revision 0.17
Figure 2: Typical RS-232 null modem connection
Basic 3 wire RS-232 null modem connection:
Used to connect to DTE type devices like the Blue Heat/Net, this connection is used when
hardware RTS-to-CTS flow control is NOT required. The cable is called a cross-over cable, and
is readily available at any electronics retailer/distributor.
Figure 3: Basic 3-wire RS-232 null modem connection.