Tripp Lite USA-19HS Owner's Manual for USA-19HS Windows v3.7S 933021 - Page 4

Determine Keyspan's COM Port Assignment 5. We now need to determine which COM port was assigned to the Keyspan adapter. The adapter's COM port is important because you will be telling your serial devices (ie modem, PDAs, GPS, etc) to use the Keyspan COM port. You can determine Keyspan's COM port assignment by using the Keyspan Serial Assistant utility. Open Keyspan Serial Assistant utility (START menu > (All) Programs > Keyspan > Keyspan Serial Assistant). You will be presented with the following window: Keyspan Serial Assistant window 6. In the Keyspan Serial Assistant window, you will see your adapter's COM port assignment. You should see COMxxx : IDLE or COMxxx: BUSY. Note the COM port address (ie COM1, COM2, etc) as you will need this information later. IDLE message: If you see the IDLE status message, the Keyspan adapter is working and waiting for some program to access the Keyspan COM port. This is the normal state of the adapter. If you look at your adapter's status light, it will be blinking slowly (1 blink per sec.) to indicate that it is idle. Proceed to the Making Your Keyspan Adapter Work With Your Serial Device section. BUSY message: If you see the BUSY status message, the Keyspan adapter is working and some program has already gained access the Keyspan COM port. If you look at your adapter's status light, it will be on (not blinking) or blinking every time data is sent or received (this can be a rapid blink or a blink every couple of seconds). Assuming that your serial device's software gained accessed to the Keyspan adapter, you should be able to start using your serial device right away. In some cases, it may be another program that is accessing the COM port before your serial device has had a chance to get to the COM port. In these cases, please read the Troubleshooting section in this manual for further assistance. No Keyspan Adapters Detected message: If you see the No Keyspan Adapters Detected status message, there is a problem with the installation. Please read the Troubleshooting section in this manual for further assistance. If you see either the IDLE or BUSY message, proceed to the Using Your Keyspan Serial Port section later in this manual. USA-19HS - User Manual Page 4 of 30