User manual
  Chapter 3: Software Installation - QNX 2.XX        3-11 
Echo User's Manual, ver. 0.00 
QNX 2.XX 
When installing Echo boards under the QNX 2.XX operating 
system, it is important to note the following: 
Note: 
1.  After booting, QNX looks for serial ports at the following 
addresses: 3F8, 2F8, 280, 288, 290, 2A0, 2A8, 2B0, 2B8, 
3E8, 2E8 hex. 
2.  If QNX finds ports at these addresses, QNX assigns the 
names $tty3 ($mdm), $tty4 ($term1), etc. 
Technical Tip: You can use 
osconfig to alter or add to these 
addresses. 
Configuration 
Many computers include both COM1 and COM2 directly on the 
motherboard. With this in mind, check your computer to see if it 
has either or both of these ports as standard equipment or as 
options. To avoid possible conficts with COM1 and COM2, 
Figure 6 describes a recommended DIP switch setting for port 
addresses. See Figures 1, 2, and 3 in Chapter 1: Introduction 
for the location of switch block SW1. 
Technical Tip 
1.  You can run under DOS the DOS programs porttest.exe and 
portfind.exe to verify your settings and assure you have no 
hardware conflicts. You will find these programs on the 
DFlex DOS Driver diskette (p/n: DISK306) 
2.  If you require additional information, please go to the 
Download Zone or the Knowledge Database in the Support Center 
on the Connect Tech website for product manuals, 
installation guides, device driver software and technical 
tips. If these sources do not provide you with the help you 
need please contact a Connect Tech Technical Support 
Representative via email, telephone or fax for further 
information (numbers and addresses are found inside the 
front cover of the manual). 










