Bosch DVA-12T Installation Manual download pdf (Page 30)

30 en | Subsystem Monitoring RAID Subsystem DVA-16K | Installation Manual

F.01U.027.799 | V2 | 2008.08 Bosch Security System

4.2.8 Cooling Module LEDs

Each cooling module has two (2) red LEDs on the back. Each LED corresponds to a single fan

in the cooling module. (See Figure 4.7) When the LED is on, it indicates the fan has failed.

When the LED is off, it indicates the fan is functioning properly.

Fig. 4.7 Cooling Module LEDs and Cooling Fan Locations

The RAID subsystem has a novel approach to stabilizing the temperature within the subsys-

tem: When the intelligent sensors on the backplane detect higher temperature, such as high

ambient temperature or the failure of any cooling or PSU module, the system will turn the

cooling fans to high speed to extract more heat. Once the ambient temperature cools down to

normal or the cooling or PSU modules have been replaced, the cooling fans will return to low

speed.

Color Status

FLASHING Green The power supply has not been turned on. The PSU module

LED will blink when the subsystem is connected to a power

source but not yet turned on.

Static Green The PSU is operating normally and experiencing no problem.

Static Red The PSU has failed and is unable to provide power to the sub-

system.

OFF The PSU is not turned on. The PSU module LED will remain off

even if the power cable has been plugged in but the power

switch is not turned on.

Table 4.6 Module LED Definitions

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 71 72

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Bosch DVA-12T Installation Manual Page 30