Chapter 6. Installing options 75Viewing or changing the serial-port assignmentsTo view or change the serial-port assignments:1. Restart the appliance server and watch the monitor screen.2. When the message Press F1 for Configuration/Setup appears, press F1.3. From the main menu, select Devices and I/O Ports; then, press Enter.Note: The Devices and I/O Ports choice appears only on the full configurationmenu. If you set two levels of passwords, you must enter the administratorpassword to access the full configuration menu.4. Select the serial port; then, use the arrow keys to advance through the settingsavailable.5. Select Save Settings; then, select Exit Setup to exit from theConfiguration/Setup Utility main menu.Serial-port connectorYour appliance server has one serial-port connector located on the rear of theappliance server.The following table and illustration shows the pin-number assignments for the 9-pin,male D-shell serial-port connector on the rear of your appliance server. These pin-number assignments conform to the industry standard.Universal Serial Bus portsYour appliance server has two Universal Serial Bus (USB) ports, which configureautomatically. USB is an emerging serial interface standard for telephony andmultimedia devices. It uses Plug and Play technology to determine the type of deviceattached to the connector.Table 6. Serial port connector on the system board.Connector Port DescriptionCOM1 Serial port connector(external) Default connection. Used by theoperating system. The modemcan be connected so that thesystem can dial out duringproblems.Table 7. Serial-port connector pin-number assignments.Pin Signal Pin Signal1 Data carrier detect 6 Data set ready2 Receive data 7 Request to send3 Transmit data 8 Clear to send4 Data terminal ready 9 Ring indicator5 Signal ground1 56 9