Advantech ASR-5300I Series, User Manual

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7 ASR-5300I Series Hardware User Manual
Chapter 1
Introduction
1.5.3 Internal Backplane
An integrated backplane separates the front and rear sections of the chassis. This
circuit board provides logic level signals and low voltage power paths. Thermal
sensors and I2C devices are embedded to detect system temperatures and the PSU/
cooling module operating status. This board contains no user-serviceable
components.
1.6 Front Panel Components
1.6.1 LED Panel
The LED panel on a JBOD storage expansion system can be located on the chassis
ear. The LED panel features a service LED
(1) , power supply status LED (2) , cooling
module status LED (3) , temperature sensor status LED (4) , system fault LED (5) ,
power switch or rotary ID switch (6), and a mute service button (7) . For additional
details, please refer to 4.2.1, LED Panel LEDs.
Warning! Accessing the backplane board may irreparably damage the system.
Additionally, physical contact with the backplane board can cause elec-
trical hazards.
Warning! If critical faults are indicated on the LED panel, verify the cause of the
problem as soon as possible and contact your system vendor to arrange
for a replacement module.