25-62-30 Page 29 of 88APR 06/10COBHAM AVIONICS WULFSBERG ELECTRONICSABBREVIATED COMPONENT MAINTENANCE MANUALME406 (453-6603), ME406HM (453-6604)TASK 25-62-30-870-8022. OperationSUBTASK 25-62-30-870-001A. Operational Overview(1) See "Figure 7. ELT Operational Flow Diagram".Figure 7. ELT Operational Flow Diagram(2) A primary feature of the ME406 Series ELT is its simplicity of operation. As long as the ELT isconnected to the remote switch harness ELT connector, such that pins 5 and 12 are jumpered(G-switch loop), it will activate in the event of a crash.NOTE: Neither the cockpit remote switch or the ELT local switch can be positioned in such amanner as to prevent automatic activation when the ELT is connected properly.(3) ELT operation is designed to prevent human error and misuse in regards to automaticactivation. The ELT cannot be activated by dropping, rough handling or during shipping.(4) When the ELT is activated, the presence of the emergency sweep tone and the flashingcockpit remote switch panel LED indicates an active, normal functioning ELT. The cockpitpanel LED must immediately begin to flash continuously upon ELT activation.(5) The ELT is considered to be either “ACTIVE” or “INACTIVE”. When “INACTIVE”, the ELT is in astate of rest and performs no functions. Taking the ELT from the “INACTIVE” state to the“ACTIVE” state requires a positive switch transition from either the cockpit remote switch, ELTlocal switch, or G-switch.ELT“INACTIVE”ELT “ACTIVE”BUZZER “ON”LED “ON”ELTSWITCH“ON”REMOTESWITCH“ON”G-SWITCH“ON”ELT ORREMOTE SW“RESET”YESYESNONONOYESNOYES
