DT Etherlink IV User Manual- 99 -7.1.3 Checking of Correct WorkingThe Noise Margin (NM) provides qualitative performance information of a specific SHDSL linkaccording the ITU-T Rec. G.991.2. Perform the next commands to check the status of the unit.Type following commands Description2 <> Go to Fault and maintenance management (FMM) <> Displays the actual system statusCP_01_FMM>STATUS----------------------------------------------------------------------------Status : DSL1 DSL2 DSL3 DSL4----------------------------------------------------------------------------I/F mode : CP CP CP CPSYNC : 1 1 1 1SEGD : 1 1 1 1Power backoff : 0.0 0.0 0.0 0.0 dbmFar end power backoff : 0.0 0.0 0.0 0.0 dbmLoop attenuation : 14.0 14.0 14.0 14.0 dBNMR : 7.0 7.0 8.0 7.0 dBBitrate : 5704 5704 5704 5704 kbit/sSRU # : 0 0 0 0Active sync. source : Internal Internal Internal Internal----------------------------------------------------------------------------Temperature : 39.750 C----------------------------------------------------------------------------CP_01_FMM>ATTENTIONTHE RECOMMENDED NM VALUE FOR A STABLE SHDSL CONNECTIONIS > 6DB. AFTER INSTALLATION AND ANY CHANGE OF THECONFIGURATION THIS VALUE SHOULD BE CHECKED.7.1.4 Problem with Etherlink_IV DeviceIn case you have any trouble with the Etherlink_IV device, please send following details to your S-Access contact: Application Description Main Menu Picture of every device Configuration of every device (Please perform with the command