Installation and First-Time Operation84eud-0850/2.0 — I7.6 — 08.2007Expansion key module Office KBM⁄DKBM (optional)You can connect up to 3 Office KBM expansion key modules with 20 configurable keys each and upto 3 Office DKBM [a] expansion key modules with 3 x 15 configurable keys to your phone. You canfreely combine Office KBM and Office DKBM. Each key has an LED for visual signalling.n Connectionsn Connecting the Office KBM⁄DKBM expansion key module• Unplug the phone cord from the socket on the underside of the phone.• Attach Office KBM⁄DKBM expansion key module to the right of the phone until you feel andhear it snap into place, as indicated in the following figure.• Plug the cord into the supplementary equipment sockets on the underside of the phoneand the Office KBM⁄DKBM expansion key module.• Feed the connecting cable through the strain relief on the underside of theOffice KBM⁄DKBM expansion key module.• Plug the phone cord back into the socket on the underside of the phone. The expansion keymodule Office KBM⁄DKBM is now ready for operation.• Depending on the type of power supply, you may need additional power supply units foryour expansion key modules. If there is an under supply of power, a message appears on thedisplay. Contact your system administrator for more information.• Proceed in a similar way if you want to connect other Office KBM⁄DKBM expansion key mod-ules (maximum 3).Connecting the Office KBM⁄DKBM expansion key moduleConnecting further Office KBM⁄DKBM expansion key modules (symbol onOffice KBM)Connecting further Office KBM⁄DKBM expansion key modules or power supply(symbol on Office DKBM)Note:Always disconnect the phone from the mains first before you connect/disconnect an Office KBM⁄DKBMexpansion key module.orMenu16:58WE 23 Aug Week 34Office 80IPOUT IN OUT IN OUT IN