Use Case:  Monitor Cabinet Cooling Module Status & Temperatures

Description:  Check periodically the Cabinet Cooling Module status and temperatures

Role(s)/Actor(s): 
Primary: TRS
Secondary: Altitude Cabinet Cooling Module

Priority: Major

Performance: TBD

Frequency: once per minute

Package Assignment:  Services.

Preconditions: 

• ATCS state is STANDBY or ONLINE

Basic Course: 

• TRS triggers the readout of the CCM Status and Temperatures (Cabinet and Ambient)
  Exception Course: Command failed
• ATCS sends command to the Altitude Cabinet Cooling Module sub-system

  Interface:  IfService.Ccm.AltStatus

  Exception Course: Communication failed Exception Course: Command failed
• ATCS updates the status and temperatures of the Cabinet Cooling Module sub-system
• ATCS checks the CCM status
  • Subflow: CCM Status failure
• ATCS checks the cabinet internal temperature against limit
  • Subflow: Over temperature

Subflow: CCM Status failure

• ATCS logs the error
• ATCS raises an alarm

Subflow: Over temperature

• ATCS logs the error
• ATCS raises an alarm

Exception Course: Communication failed

• ATCS logs the error
• ATCS set the module to subState Error

Exception Course: Command failed

• ATCS logs the error

Postconditions: 

• The status and temperatures of the Cabinet Cooling Module are monitored periodically

Issues to be Determined or Resolved: 

Notes:The temperatures shall be fits-logged for trend analysis.

Last modified: Thu Dec 5 11:34:28 UTC 2002