Bosch DVA-08K Manual De Usuario

RAID Subsystem DVA-08K | Installation Manual

Introduction | en 15 

Bosch Security Systems

F.01U.027.797 | V2 | 2008.08

The SATA-based RAID subsystems are equipped with two (2) redundant, hot-swappable, 2U, 

350W power supply unit (PSUs) modules. The PSU is permanently mounted into a 2U high 

(dual-level) bracket especially designed to house both the PSU and a cooling module mounted 

underneath. PSUs can be found on either side of the controller module. 

Each PSU comes with a single power socket for power cord plug-in and a single power switch 

for you to turn the PSU on and off. Each PSU also comes with two embedded cooling fans to 

provide sufficient airflow to keep the PSU cool. A single LED is used to indicate the PSU sta-

tus. A handle at the back of the PSU has been especially designed to enable you to remove the 

PSU from the subsystem while the system is still online. This should only be done if the PSU 

has failed and needs to be replaced. 

PSU Module

The SATA-based RAID subsystem is equipped with two 1U single-fan, redundant, hot-swappa-

ble cooling modules shown in Figure 2.13. One 9.7cm fan is housed in each cooling module. 

These modules have been designed to generate a cooling flow from the front to the rear of the 

subsystem to extract the heat generated by the SATA hard drives. Two of the cooling fan mod-

ules are installed directly beneath the PSUs.

Hot-swapping the PSU also removes the cooling module at the lower slot.

A retention screw at the upper right corner of the PSU module is used to secure the PSU to 

the enclosure. If the PSU needs to be removed, the retention screw must be removed first. 

When installing a new PSU module, make sure that the retention screw has been firmly 

secured.