Installation99Aastra 415/430 as of R3.2syd-0344/1.6 – R3.2 – 09.2014Please note:• The arrows on the wiring adapters specify the plug-in orientation of the requiredport assignment.• On the ESST terminal card the jumper must always be fitted in position T (see fig-ure below). The port assignment is specified by the wiring adapter alone.Fig. 24 Jumper position on ESST cardNoteAny incorrectly fitted or missing wiring adapters are signalled by a redflashing LED on the display after start-up (see "Wiring Adapter Malfunc-tion Mode", page 209).4. 5. 3 DSP moduleDSP modules belong to the category of system modules and are fitted to the SM1slot (see Fig. 7). Three DSP modules are stackable.WarningBe sure to observe the "Safety regulations", page 82.1. Shut down the communication server (see "Shutdown Mode", page 211) anddisconnect it from the power supply.2. Remove the housing cover.3. Remove the fastening screw from module slot SM1.4. Instead of the fastening screw, screw in the spacer sleeve enclosed with themodule.5. Place the module on slot SM1 of the communication server (or onto a module al-ready fitted in that slot) and press down evenly on both connectors as far as thestop.6. Secure the module with the fastening screw.7. Fit the housing cover.8. Reconnect the communication server to the power supply.TSNCNCS/TTSSNCNCS/TJumper inposition T:Jumper inposition S:Card ESST-2Card ESST-2RIGHT WRONG