CHAPTER 1: INSTALLING THE PCI-AC48 ADAPTER CARD
PCI-AC48 User’s Guide
9
9
4.
Click the plus sign (
+
) next to “Ports (COM & LPT)” and look for the new COM ports that are now
available.
NOTE: The port numbers assigned to the adapter card’s serial ports will vary depending on the number
of COM ports that the computer system has.
IMPORTANT: Port A on the board becomes the lower-numbered port on the computer. In the example
above, COM4 is Port A and COM5 is Port B. To test which port is which, use HyperTerminal to send
characters through a port and look for the blinking TX LED. It’s easier to see the LED blink if the baud
rate is set low (for example, 300). See the Troubleshooting Appendix for more information.
5.
Note the COM port numbers for future use.
Connecting a Serial Cable to the Adapter Card
The PCI-AC48 adapter card has two serial ports, Port A and Port B. Two removable 10-pin cable plug
connectors are provided with the adapter card. The connectors are similar to some screwless
speaker connectors. Note that it is easier to wire a connector if it is attached to a stationary object,
like a vise or the board after it is installed in the computer.
Installing the PCI-AC48
adapter card adds two
new COM ports to the
operating system. These
COM ports are listed with
other COM ports in the
Device Manager.
