Aastra 5370ip User Manual Aastra 5370/5370ip (Office 70/Office 70ip) - Page 85

Installation and First-Time Operation Expansion key module Aastra M530⁄M535 (optional) You can connect 1 Aastra M530 expansion key module with 20 configurable keys or 1 Aastra M535expansion key module with 3 x 15 configurable keys to your phone. Each key has an LED for visual signalling. ■ Connections Connecting the Aastra M530⁄M535 expansion key module Connecting further Aastra M530⁄M535 expansion key modules (symbol on Aastra M530) Connecting further Aastra M530⁄M535 expansion key modules or power supply (symbol on Aastra M535) ■ Connecting the Aastra M530⁄M535 expansion key module Note: Always disconnect the phone from the mains first before you connect/disconnect an Aastra M530⁄M535 expansion key module. • Unplug the phone cord from the socket on the underside of the phone. • Attach Aastra M530⁄M535 expansion key module to the right of the phone until you feel and hear it snap into place, as indicated in the following figure. • Plug the cord into the supplementary equipment sockets on the underside of the phone and the Aastra M530⁄M535 expansion key module. • Feed the connecting cable through the strain relief on the underside of the Aastra M530⁄M535 expansion key module. • Plug the phone cord back into the socket on the underside of the phone. The expansion key module Aastra M530⁄M535 is now ready for operation. • Depending on the type of power supply, you may need an additional power supply unit for your expansion key module. If there is an under supply of power, a message appears on the display. Contact your system administrator for more information. 85 eud-0830/2.1 - I7.7 - 10.2008