Figure 4-15
FAN panel
Figure 4-16
FANc panel
NOTE
The FANc has
FANc
label, which is different from the FAN.
Functions
The FAN unit performs the following functions:
l
Controls the fan speed.
l
Reports the status, temperature, and in-position signal of the fans to the main control
processing unit.
l
Monitors the temperature at the air inlet.
l
Dissipates heat.
l
The FANc supports the function of reading and writing the information reported by the
electronic label unit.
LED
The FAN panel has only one LED, which indicates the operating status of the fans.
describes the LED.
4 BTS3900 Components
BTS3900
Hardware Description
4-24
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Issue 04 (2011-02-15)