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TD140 Hardware Maintenance Guide 7.13.2
17
2
TD140 Chassis Subsystem
Rev. 001-140228
Fan Tray LEDs
describes the fan tray operational status as indicated by the LEDs.
Air Filter Tray
The chassis provides a front replaceable air filter installed in a removable tray located next to
the right fan tray. The filter meets the requirements of the Telcordia Technologies Generic
Requirements GR-78-CORE specification.
The air filter tray can be removed by pulling the two front air filter handles. To reinstall, push
the air filter tray into the guide rails at each side of the chassis until the spring-mounted ball
lock engages. See
Note:
When installing the air filter, the filter element must be in the top position.
Figure 2.6 - Air Filter Tray
Table 2.3 - Fan Tray LED Indicators
LED
Color
State
Condition
Hot swap LED
Blue
Solid
Fan tray can be removed safely.
Blinking
Preparing for extraction.
Off
Fan tray should not be removed, or there is no power to
the fan tray.
Alarm LED
Red
Solid
Attention status (error condition).
Off
Fan tray operating normally.
OK LED
Green
Solid
Normal operation.
Off
No power to the fan tray.
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