| Hands-On 5ESS Emergency Action and Recovery |
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| Hands-On 5ESS Emergency Action and Recovery |
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This lesson presents the 5ESS structure and how the different modules relate to each other. The Administrative Module portion of this lesson defines the functions of the Administrative Module and the service impact incurred if it initializes or becomes non-functional. The Communication Module Processor portion of this lesson presents its Primary versus Mate structure and the functions of the Communication Module Processor. The lesson also identifies the service impact incurred if the Communication Module initializes or becomes non-functional. The Switching Module Processor portion of this lesson defines the basic structure of a Switching Module and the functions performed by the Switching Module Processor. The lesson also describes the service impact caused by a Switching Module Processor initialization and inoperability. The lesson completes by identifying “smart” pumpable peripheral units and their ability to initialize.
The 5ESS Power Circuitry and Fusing are critical components to its operation. 5ESS power circuitry and fusing arrangements usually function very reliably but, periodically, do incur problems. This lesson presents power from the Power/Global Power Distribution Frames to the circuits they feed. This lesson addresses Power Buses, Power Filters, Filter Fuses, Load Fuses, Circuit Fuses, Power Converters and procedures to work on these components. The lesson also addresses System Recovery, 235-105-250, procedures to care for power problems.
This lesson addresses Administrative Module manual Emergency Action and Recovery procedures as presented in Alcatel-Lucent’s System Recovery document, 235-105-250. Initially, the students are required to locate Administrative Module recovery procedures in the System Recovery document. From this point, the different procedures are explained. When the System Recovery, Administrative Module procedures address Processor Recovery Messages (PRMs), the lesson uses Alcatel-Lucent’s Processor Recovery Messages Manual, 235-600-601, to decipher the PRM messages. When the System Recovery document discusses the Emergency Action Interface (EAI) display, the lesson explains and defines the different indicators and poke commands on the display. The lesson also relates EAI items to their physical locations on the Administrative Module. During this lesson the different Administrative Module initialization levels are described and their impact on the Administrative Module and 5ESS System Operation are discussed. The lesson goal is to assist the student in becoming comfortable with the System Recovery document and to understand the procedures presented in it.
This lesson presents procedures for Administrative Module Postmortem analysis. Subsequent to an Administrative Module recovery, it is important to identify why the Administrative Module initialized so the initialization does not reoccur. This lesson identifies how to obtain an Administration Module Postmortem printout and how to analyze it.
This lesson addresses manual Switching Module Emergency Action and Recovery procedures as presented in Alcatel-Lucent’s System Recovery document, 235-105-250. Initially, the students are required to locate Switching Module recovery procedures in the System Recovery document. From this point, the different procedures are explained with emphasis placed on SM/SM-2000 Initialization Faults and SM/SM-2000 Initializations. The lesson also briefly addresses Peripheral Unit failures. The lesson defines the indicators and poke commands on the 1800 Switching Module Inhibit and Recovery Control display along with their impact on the Switching Module. This is followed by a description of the Switching Module Progress Markers, Phase Triggers and the severity of the different levels of Initialization. The lesson goal is to assist the student in becoming comfortable with the System Recovery document and to understand the procedures presented in it.
This lesson presents procedures for Switching Module Initialization Postmortem and Event History analysis. Following a Switching Module recovery, it is important to identify why the Switching Module initialized so the initialization does not reoccur. This lesson identifies how to obtain a Switching Module Postmortem / Event History printout, output messages for the last initialization and how to analyze the Postmortem / Event History printouts.
This lesson presents Communication Module manual Emergency Action and Recovery procedures as presented in Alcatel-Lucent’s System Recovery document, 235-105-250. Initially, the students are required to locate the Communication Module recovery procedures in the System Recovery document. From this point, the lesson presents System Recovery procedures for:
● Administrative Module – Communication Module Isolation
● Communication Module Duplex Hardware Failure
● Communication Module Unit Hardware Problems
● Communication Module Processor Initialization
The lesson also identifies the recovery differences between the CM2 and CM3 Communication Module configurations. The Communication Module Primary Inhibit and Recovery Control display 1850 and the Communication Module Mate Inhibit and Recovery Control display 1851 are presented next. This includes defining the indicators and poke commands on the displays, identifying the Communication Module Progress Markers, listing the Communication Module Phase Triggers and defining the severity of the different levels of Initialization. The lesson goal is to assist the student in becoming comfortable with the System Recovery document and to understand the procedures presented in it.
This lesson presents procedures for Communication Module, Primary and Mate, Initialization Postmortem and Event History analysis. After a Communication Module recovery, it is important to identify why the Communication Module incurred the problem so it will not reoccur. This lesson identifies how to obtain a Communication Module Primary and Mate Postmortem / Event History printout, output messages for the last initialization and how to analyze the Postmortem / Event History printouts.