The rear view shows the components and LEDs on the rear
of the appliance. The fan modules and power modules are installed
from the rear of the appliance.
Rear view diagram
Figure 1. Type 7199-92x rear view
The labels in the previous diagram illustrate the following
components on the rear panel of a Type 7199-92x appliance:
- A
- Fan module 1
- B
- Fan module 1 LED
- C
- Fan module 2
- D
- Fan module 2 LED
- E
- Fan module 3
- F
- Fan module 3 LED
- G
- Power supply module 1 LED
- H
- Power supply module 1
- I
- Power supply module 2 LED
- J
- Power supply module 2
Fan modules
The appliance includes three
fan modules. Each fan module contains an individual cooling fan with
an LED in each fan module:
- If the amber LED is lit, there is a problem with the fan module.
- If the amber LED is not lit, the fans are operating normally.
The speed of the fans are dependent on the
temperature of the appliance. As the temperature increases, the fan
speed increases to maintain a balanced temperature for the appliance.
Power supply modules
The appliance
is powered by two redundant power supply modules. A single power supply
module can supply enough power to support appliance operations. The
power supply modules can be hot-swapped, so you can replace a single
power supply module without powering down the appliance. Each power
supply module contains an LED:
- If the amber power LED is lit, the power supply has an error.
- If the LED is not lit, the power supply is working
as expected.
Note: When
you press the power button to turn off the appliance, there is still
electrical current flowing to the device. To completely stop all electricity
to the appliance, unplug all power cords.