Exception Handling
l
If the operating environment or humidity fails to meet the operating requirement, adjust
the temperature or humidity through the air-conditioning system to the required levels.
l
If the power system fails to meet the requirement, install two separate power supply lines
and a transformer with a sufficient capacity.
3.2 Checking the Internal Cabinet Environment
This section describes the criteria for checking the cabinet, helping to ensure the cabinet
environment and avoid faults due to environmental issues.
Reference Standard
Items to check include internal cabinet power supply and service cable labeling.
these items.
Table 3-2
Table of Check Items for the Internal Cabinet Environment
Maintenance
Items
Maintenance Guide
Reference Criteria
Power system
maintenance
(1) Check whether the power
input and output terminal blocks
of each cabinet's power
distribution frame are in good
condition. Check for corrosion,
overcurrent, and overheating.
(2) Check whether the power
input terminal block, power
socket and connector of each
cabinet's power distribution
frame are in good condition.
Check for corrosion,
overcurrent, and overheating.
(3) Use a multimeter to measure
the input and output voltage of
the power distribution frame.
(1) All connecting parts are tight
and free from loosening and
corrosion.
(2) All equipment is free from
deformation and evidence of long-
term overheating at contacts.
(3)
l
Given an input voltage of 110
V AC, the measured voltage
should range from 100 V to 127
V.
l
Given an input voltage of 220
V AC, the measured voltage
should range from 200 V to 240
V.
Cable system
maintenance
Check all power, grounding and
signal cables in the cabinet for
defects or hazards such as
damage, aging, corrosion or
flash burn.
All cables are free from damage,
aging, corrosion or flash burn
hazards.
Grounding system
maintenance
Check whether all connection
terminals and fastening screws
inside the cabinet are tight.
Check for loosening or
corrosion.
All connecting parts are tight and
free from loosening and corrosion.
NetBackup 5200
Routine Maintenance
3 Guide to Routine Maintenance on Equipment Site
Issue 01 (2010-08-30)
Symantec Corporation
3-3
