86 Installing Upgradesw w w . d e l l . c o m | s u p p o r t . d e l l . c o mTAPIThe telephony applications programming interface (TAPI) system-boardconnector uses a 4-pin cable to interface your internal TAPI-compliantexpansion card with the audio system in your computer. To locate the TAPIsystem-board connector, see “System Board Components.” Your computersupports TAPI-compliant cards using the standard TAPI connector (labeledTELE). For example, you can connect your modem to the TAPI connectorand then use your audio speakers and microphone as a speakerphone. Themicrophone carries your voice into the computer and then through theTAPI system board connector to your modem card. The caller’s voice entersthrough the modem card to the TAPI system board connector and then outto the speakers. You can also use this configuration to record and play soundfiles over the phone.NOTE: See thedocumentation that camewith the TAPI-compliantexpansion card for moreinformation on usingTAPI devices and toverify the card works withyour computer.Installing a TAPI DeviceCAUTION: Before you perform this procedure, see “CAUTION:Safety Instructions.”NOTICE: Before disconnecting a device from the computer, wait 10 to 20seconds after disconnecting the computer from its electrical outlet. Beforeremoving a component from the system board, verify that the standby powerlight on the system board has turned off. To locate this light see, “SystemBoard Components.”1 Turn off the computer and devices, disconnect them from theirelectrical outlets, and wait 10 to 20 seconds.2 Open the computer cover.3 Install the TAPI-compliant expansion card.See the manufacturer’s documentation for more information.4 Connect the 4-pin TAPI cable to the TAPI system-board connector.To locate the TAPI connector on the system board, see “System BoardComponents.”5 Connect the 4-pin TAPI cable to the TAPI expansion-card connector.To locate the TAPI connector on the expansion card, see themanufacturer’s documentation.6 Close the computer cover.
