Making external connections
Quatech USB-to-Serial Adapter User’s Manual
Testing DB-9 serial ports in HyperTerminal
This section explains how to test the functionality of your USB-to-
Serial adapter using Hyperterminal for RS-232 ports and RS-422/485
ports.
An RS-232 loopback connector is included with the USB-to-Serial
adapter. For MEI models, an RS-422/485 loopback is also included.
Running Hyperterminal
Step
Procedure
Description
Step 1
Attach the loopback connector to the DB-9
connector.
Be sure to use the correct loopback
connector for RS-232 or RS-422/485.
Step 2
Launch HyperTerminal.
In Windows, select Programs/
Accessories/ Communications/
HyperTerminal.
Step 3
Create a new session.
When prompted, give the session any
name you wish.
Step 4
Select the COM # associated with port 1
from the drop down list.
You are now set up to test the first serial
port.
Note: Leave all settings at default.
Step 5
With the session open, type any text.
If the text you type is echoed on the
screen, the port is functioning properly.
Step 6
Close the session.
Step 7
Repeat steps 3 through 6 for each serial
port.
If the text you type is echoed on the
screen, the port is functioning properly.
Page 14
Rev 1.01 (February 2007)
