
Nortel Networks 5399 Access Switch Hardware Installation Guide
Appendix B Modem Upgrade Instructions
B-2
Module Removal InstructionsObserve handlingprecautions: digital telecommunications
cable(s).
The following instructionsdescribe how to remove the Remote Access
Concentratormodule fromthe hub.Figure B-1 illustrates theinstructions.
1. Disconnectt he WANcables.
2. Loosenthe two captivescrews.
3. Disengage the module from the backplane b y
simultaneouslypushing the inserter/extractor levers
towards theoutside of the module front panel (see
Figure B-1).
4. Removet he module.
FigureB-1. Removing the Module from the System 5000 Hub