CommScope e-POI, Руководство по установке

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ERA® WCS and e-POI Subracks and Power Supply Unit Installation Guide M0201ABK_uc
Page 78 © June 2021 CommScope, Inc.
Maintenance
M
AINTENANCE
The following sections provide maintenance information.
WCS Subrack Filter Module Maintenance
The WCS-2 Subrack has one Filter Module, and the WCS-4 Subrack has two Filter Modules on the left-hand
side of the chassis (see "WCS Subrack Fan Trays and Filter Modules” on page 31 ). Air enters the Subrack on
the left side of the chassis and exits on the right by the Fan Tray.
The Filter Modules should be checked every six months to make sure they are clear of dust and cleaned if
necessary. A dirty Filter Module will inhibit fresh air flow and can cause temperature alarms. CommScope has
found that CAT Cards are typically first to show temperature alarms if the Filter Module becomes clogged.
Removing a WCS Subrack Filter Module
WCS Subrack Filter Modules can be pulled out with your fingers, as there are no screws—Filter Modules are
retained in the WCS Subrack chassis by friction. However, you may have to use a screwdriver or a flat blade
under the lip of the Filter Module frame to help pry it out of its slot. Filter Modules can be pulled out while the
system is running.
Figure 16. Removing a WCS Filter Module
WCS Subrack
Filter Module
Flatblade
tool