2-14 Chapter 2Hardware DescriptionsDCS Series Keyset DaughterboardsKDB-Digital Line Interface (KDB-DLI)This daughterboard can be installed only in a 12B or 24B keyset. The KDB-DLI provides oneadditional DLI circuit for the connection of any digital station device such as a keyset, add-onmodule or DPIM. The KDB-DLI will only operate when the keyset is connected to a DLI porton the base board so it can use the second B channel. Each port is intended for connectionto one telephone. Connecting multiple telephones to a port may result in incorrect operation.(See Chapter 3 of the Samsung OfficeServ 100 Installation Manual for details.)KDB-Single Line Interface (KDB-SLI)This daughterboard can be installed only in a 12B or 24B keyset. The KDB-SLI provides oneadditional SLI circuit for the connection of any standard (single line) telephone. This KDB-SLIwill only operate when the keyset is connected to a DLI port on the base board so it can usethe second B channel. Each port is intended for connection to one telephone. Connectingmultiple telephones to a port may result in incorrect operation. (See Chapter 3 of the Sam-sung OfficeServ 100 Installation Guide for details.)NOTE: The circuitry on a KDB-SLI does not provide a loop open disconnect signal or havethe over-voltage protection necessary for OPX operation.iDCS Series Keysets28-Button iDCS Keyset (28D) (Figure 2–19)y 32-character display (2 x 16) with three associated softkeys and a scroll keyy 28 programmable keys with tri-coloured LEDsy Two fixed-function keysy Keyset Status Indicatory Built-in speakerphoney Eight selectable ring tonesy Volume Up/Down keys for digital controlof speaker, handset and ringer volumesy Desk- or wall-mounted Figure 2–19 28-Button iDCSKeyset (28D)