Technical Information C40-SCFA • CF Card SATA USB Mezzanine Module
J-USB3 J-USB4
As a custom specific option, the C40-SCFA can be provided with one or two USB receptacles. Due to
the USB connector dimensions, the total stack height of the CPU carrier board and the C40-SCFA
mezzanine module assembly will exceed the 4HP envelope about ~1.3mm. This may be tolerable in
some situations, but should be nevertheless considered. USB cable assemblies with slim and short
plugs are also required - not any USB harness matches with the C40-SCFA due to space restrictions.
The same issue must be strictly observed if direct attachment of an USB stick (e.g. Flash Drive) is
intended - only a very short, low profile stick (with an overall length of less than 50mm) would be
suitable.
The J-USB3 receptacle cannot be populated together with the UFD1 Flash module, since both
components would overlap each other. The J-USB4 receptacle is not available together with the
CompactFlash connector P-CF for similar reasons. Be sure to discuss your needs with [email protected]
before ordering.
The C40-SCFA USB ports are derived from the ICH southbridge on the CPU carrier board. A dual
electronic switch is provided on the C40-SCFA for short-circuit and overcurrent control regarding the
J-USB3 and J-USB4 receptacles (0.5A).
USB Receptacles J-USB3 & J-USB4 • 270.20.04.0
1) Dual Channel Electronic Switch Protection
1
+5V_USB 0.5A 1)
2
DATA-
3
DATA+
4
GND
P-MEZ
SATA
USB
Sectional Drawing (North View) - SATA & USB
Carrier Board PCB
9.0mm
C40
Side Board 4HP Pitch
SATA
USB Receptacle
© EKF •
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270.20.04.0 •
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