3. Open your serial device's software. This is the software that you would normally use to communi-
cate with your serial device. We need to tell this software to use the Keyspan COM port (from
Step 2
). Normally, this is found in a COM port selection screen, menu, etc. Please see your serial
device's manual for instructions on how to select a serial port. Once you find this screen, pro-
ceed to the next step.
Note:
Every serial device COM port selection screen is different. Some serial device's have COM port selec-
tions in a control panel, some have their COM port selection screens in menu's called Settings, Com-
munication, Preferences, etc, and others may not have a place to select a serial port.
4. In your serial device's COM port selection screen, select the Keyspan COM port (the one that you
noted in Step 2).
Note:
If your software shows a limited number of ports and your Keyspan COM port is not in that range, you
will need to either get updated software that can see all COM ports or you will need to change the
Keyspan COM port to one that your program can use.
If you need to change your Keyspan COM port, see the
Changing Your COM Port Address
section later
in this manual. When you have completed that section, return to this section
5. Now that you have selected the Keyspan COM port, start using your serial device like you would
normally.
If your serial device is working, congratulations.
If your serial device doesn't work, please read the
Troubleshooting
section in this manual for fur-
ther assistance.
The Keyspan Adapter's Status Light
The Keyspan USA-19HS comes equipped with a green status light. This light reports the status of your
Keyspan adapter. It is useful in troubleshooting various issues.
The following table shows all of the possible states of the status light and what they mean:
Color
State
Description
n/a
Off
The Keyspan adapter is not con-
nected or not receiving power
from your computer.
The Keyspan hardware may not
have been installed correct. See
the troubleshooting section for
details.
USA-19HS - User Manua
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