| UNIT 3: INSTALLATION - LESSON 2: INSTALLING OPTIONAL SERVICE CARDS Installing a KX-TAW84861 Now we will install the KX-TAW84861 Doorphone Card. Because the KX-TAW84861 has connectors that must extend outside the Main Unit, it can only be installed in option slots 8 or 9. For this reason, it is wise to install the KX-TAW84861 before other any other cards of this type. We will install the card into slot 8 in this lesson. Cut and remove the dummy cover from slot 8 of the Main Unit. (See page 36 in the Installation Manual.) Insert the KX-TAW84861 into the slot 8 of the Main Unit. Press down on the rear of the card to seat it in place. Insert the extension bolt to secure the card.