Specifications

System Overview QSSC-S4R Technical Product Specification
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x Control the front panel I/O providing the end user access to the system video, USB interfaces and LAN port LED
indication and controlling the operator panel via a 2x6-pin connector.
The front panel fan board (FPFB) supports the following features:
x Board size: 13.6956” x 4.44”
x Support up to eight 80mm hot swap fans
x Front I/O: one VGA video port and three USB 2.0 external ports
x Cabled Front Panel interface to support the front panel control module
x TMP75 Ambient air sensor
x FRU information EEPROM
x Four individual LAN Act/Link LEDs indicating LAN status of the four LAN ports at the rear, routed from the I/O
Riser.
x Thermal sensor
x Hot swap fan noise immunity circuitry
x Easy removable fan bay to access the fan board
x Tool-less attachment
Item Description
A 2X20 Pin Fan Signal
B 2X2 Pin Fan Power
C 1X8 Pin Hot Swap Back Plane Power
D 2X20 Pin Front Panel to Main Board
E 2X7 Pin USB to Main Board
F Fan Hot Swap Power Connectors 1-8
G Front Panel LEDs and I/O Ports (see “Error! Reference source not found.” for
details)
Figure 30. Front Panel Fan Board Component Locations
The S4R front panel fan board also provides individual LAN Act/Link LEDs indicating LAN status of the four LAN ports
at the rear with signals routed from the I/O Riser. The table below shows the LED functionality.
LED Color/LED Behavior State
LAN #1, 2, 3 & 4 Off Idle
Green Blink LAN access
Green On LAN link/no access
9.1.1 Fan Subsystem
The QSSC-S4R Server System supports eight hot swap fan modules that are located at the upper front of the chassis
and can be removed inside the chassis with the chassis cover removed (See Error! Reference source not found.).