Observing safety precautions

Last Updated : Jan 20, 2021 |
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Before you attempt repairing any equipment, observe the prescribed safety precautions to avoid unnecessary damage to the equipment and disruption of service. Make the items on the following list a regular part of your safety routine:
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Failure to comply with these procedures may lead to catastrophic effects on a system hardware and service. Read the following to ensure a complete understanding of these necessary procedures.
  1. Before touching any component inside a cabinet, use the grounding wrist strap attached to the cabinet frame to avoid sources of static electricity. For more information, see Electrostatic discharge.
  2. Do not turn off either a switch node or port carrier to replace a board.
  3. Handle fiber-optic cables with care. Bending, piercing, or cutting a cable can sever communications between major subsystems.
  4. To disconnect a fiber-optic cable, grasp both the lightwave transceiver and the cable connector.
  5. When you finish working on a cabinet, replace and secure every panel and cover to avoid disseminating electromagnetic interference.
  6. Before turning off a cabinet or carrier, when the Communication Manager Messaging application enabled, first stop the Communication Manager Messaging application to avoid corruption of the application’s LDAP database. For instructions on stopping the application, see the Communication Manager Messaging documentation, and in Hot swapping media modules.