Amey Rane Madhur Srivastava Tejas Pandit Varun Sivakumar

Safety & Reliability Issues Safety – Don’t want to electrocute users Don’t want to harm connected appliances Reliability – RF Reliability Issues (interference, etc) Sensor failures

Components Linx Transceiver (TRM-315-LT) Freescale Micro-Controller (MC9S12A512) Fairchild Semi-ConductorVoltage Regulator (7805)

Linx Transceiver Table Linx Transceiver (TRM-315-LT) ParameterValueComments C1C1.011 to 100 transistors, Linear, MOS TT 3.8Temp 70 ° C C2C functional pins EE 2.0Ground Fixed QQ 10Commercially Manufactured LL 1.0>2 Years in production P.448Failures per 10 6 hours MTTF2,232,142 hours = 254 Years

Freescale Micro-Controller Table Freescale Micro-Controller (MC9S12A512) ParameterValueComments C1C1.28CMOS, 16 bit TT 1.5Junction Temp 100 ° C C2C functional pins EE 2.0Ground Fixed QQ 10Commercially Manufactured LL 1.0>2 Years in production P 4.58Failures per 10 6 hours MTTF218,340 hours = 24 Years

Voltage Regulator Table Fairchild Semi-Conductor Voltage Regulator (7805) ParameterValueComments C1C1.011 to 100 transistors, Linear, MOS TT.1Temp 25 ° C C2C functional pins EE 2.0Ground Fixed QQ 10Commercially Manufactured LL 1.0>2 Years in production P.034Failures per 10 6 hours MTTF29,411,764 hours = 3357 Years

Criticality Levels Low: The management system no longer works. The data may not be collected/displayed correctly or valid and the user may not be able to send commands. Medium: The devices plugged into our adapter may not be provided correct voltage/current and they may not function. High: Devices or Users may be harmed.

FMECA Table Still being made

Risk Mitigation Fuses at source and at solid state relays Ground body of adapters SSRs offer improved system reliability because they have no moving parts or contacts to degrade Checks for validity of communication

Questions