Nortel Secure Router 8000 Series Routine Maintenance page 15

2.7.1 Environment of the equipment room .................................................................................................2-14
2.7.2 Environment inside the cabinet..........................................................................................................2-15
2.7.3 Yearly tour check organization...........................................................................................................2-15
3 Maintenance guidelines............................................................................................................3-1
3.1 Dustproof maintenance of the device ............................................................................................................3-2
3.1.1 Cleaning the air filter ...........................................................................................................................3-2
3.1.2 Removing dust from the fan frame ......................................................................................................3-3
3.1.3 Removing dust from boards.................................................................................................................3-4
3.1.4 Removing dust from optical interfaces and connectors .......................................................................3-5
3.2 Backup and restoration..................................................................................................................................3-7
3.2.1 Backing up the configuration files .......................................................................................................3-7
3.2.2 Restoring the configuration files..........................................................................................................3-9
ii Nortel Networks Inc.
Nortel Secure Router 8000 Series
Routine Maintenance
Issue 5.3 (
19 May 2009
)