9-5Installation ProcedureAlways unplug the keyset line cord before installing a daughterboard.1. Place the keyset face down on a flat surface.2. Remove the base wedge by firmly pushing inwards from each side and pulling it off the re-taining clips. (You may need to remove line and handset cords from their cable runs beforedoing this.)3. Remove the two knockouts marked “Expansion Module” on the base (Figure 9-2) using aflat-bladed screwdriver or similar tool.4. Position the daughterboard over the Expansion Module connectors on the base and push itonto the base.5. Secure the daughterboard onto the keyset using the screws provided.6. Replace the base wedge.If you removed cables from cable runs, replace them as required.(NOTE: Figure 9-2 shows the 28D keyset. However, the procedure is the same for 18D keysets.)Connecting Devices To iDCS DaughterboardsThere are two methods for connecting devices to keyset daughterboards. The simplest methodis to connect a device (e.g. another keyset) directly by means of an RJ11 line cord using the jackon the daughterboard. (If connecting a single line telephone, use a line cord fitted with a master-ing unit.)The second method is to use a multi-pair station cable, connecting separate station jacks to thefirst two pairs. A line cord can now be connected between the daughterboard and the secondjack. This returns the daughterboard port to the MDF for cross-connection to another cable run.