To quickly and accurately locate and resolve a fault in the optical transport system, maintenance
personnel must have sufficient background knowledge and service skills and be familiar with
the network and the equipment used. This topic outlines the skills and knowledge that
maintenance personnel require for troubleshooting the OptiX OTN equipment.
Background Knowledge
WDM fundamentals
The WDM system alarm generation mechanism
Troubleshooting methods for common alarms
Basic Operations
Basic transmission equipment operations
lBasic network management system (NMS) operations
For basic NMS operations, refer to the OptiX iManager U2000 Operator Guide or the on-line
help.
Common Test Instruments
Commonly needed transmission system test instruments include optical power meter, SDH/
SONET tester, SmartBits tester, optical spectrum analyzer, OTDR and communication signal
analyzer. Refer to the respective operator guide for more information.
Network Layout
The network layout of the project
The service configuration, wavelength assignment, optical distribution frame (ODF), fiber
routing, board version, and equipment layout in each office.
The current equipment running status in local office
The relevant engineering files and documents (which need to be updated periodically)
On-Site Data Collection
This process includes periodic data collection both when the equipment is running normally and
when faults occur. Before handling the fault, maintenance personnel should first collect and
store the on-site data. For more information about data collection,