Course Objectives:
To provide participants with a good knowledge of EWSD System Maintenance
Expected Accomplishments:
- Understanding of the Standard HW Maintenance Concept
- Interpretation of Alarms and Initiation of Fault clearance
- Knowledge of Emergency Situations and Fault Reporting
- Supervision of the Speech and Signaling Network
- Supervision of the Subscriber and PBX Access
- Handling of APS Safeguarding Tasks
Who can benefit:
Operation and Maintenance personal in EWSD
Prerequisites:
- ST-300 EWSD System outline course
- ST-310 Basic O&M of EWSD
Course Outline:
- Standard HW Maintenance Concept
- Overview of the Documentation
- Alarming
- Fault Clearance Sequence
- Initiating Fault Clearance
- Module Replacement
- Digital Line Unit (DLU)
- Creation of DLU and DLU Modules
- Meanings of different DLU States
- • Configuring DLU and DLU
Modules - Test and Diagnosis for DLU Line Trunk Group (LTG)
- Creation of LTG Hardware
- Interrogating the LTG
- Configuring the LTG
- Diagnosing the LTGSwitching Network SN (B)
- Interrogating the SN
- Configuring the SN Components
- Diagnosing the SN Components
- Message Buffer (B)
- Interrogating the MB
- Configuring the MB• Diagnosing the MBCommon Channel Network Control (CCNC)
- Interrogating the CCNC
- Configuring the CCNC
- Diagnosing the CCNCCoordination Processor
- Interrogating the CPAPS Safeguarding Concept
- Fallback to a saved Generation
- Principles of APS saving
- APS Routine Saving
- APS Quarterly saving
- Emergency Concept
- Recovery Levels
- Emergency SituationsSupervision of the Speech and Signaling Network
- Self supervision and Alarming of PDCs in EWSD
- Performance monitoring of PDCs
- States and Alarming of Signaling
Network Element Failures in
EWSD - Self supervision of Digital Trunks
- Trunk Group AlarmingSupervision of Subscriber and PBX Access
- Supervision and Alarming of
nalog and ISDN Subscriber - • Supervision and Alarming of
ISDN/Non ISDN PBX - Performance monitoring of ISDN Subscriber Lines
Delivery Method:
Instructor led classes with Exercises and practical
Related Training:
- 30-channel PCM concepts.
- Fundamentals of Signalling
System No. 7 - Overview of V5 Interface.
