Kontron KBox C-101 - Manual (Page 17)

7. System Overview KBox C-101 – User’s Guide (Version 2.00)
The KBox C-101 is a fanless system with a compact aluminum chassis with cooling fins.
The rated voltage of the mains can be found on the type label. The type label is located at the right side of the device.
The device is designed be operated wall mounted inside a control cabinet, in vertical position, except
with the top side facing down.
When switching on the KBox C-101, make sure that the air exhaust openings on the top side Fig. 24,
pos. 12), the air intake openings on the bottom side (Fig. 25, pos. 11) and the cooling fins of the
chassis (Fig. 23, Fig. 24 and Fig. 25, pos. 6) are not obstructed (covered) by any objects.
To provide sufficient heat dissipation by the cooling of the device, do not cover the cooling fins of the
KBox C-101. Do not place any objects on the device. When installing the system, please note the
clearance recommendation in the section 16.1 “Mechanical Specifications”.
7.1. RTC
The KBox C-101 comprises a chipset external RTC. This RTC is connected to the SMBus of the processor module. A RTC of
type RV-8564 or compatible is used. To provide a valid date and time when no power is connected to the KBox C-101, the
RTC is equipped with a goldcap buffer.
7.1.1. RTC Buffer Time
The RTC buffer time is depending of the ambient temperature. To better understand the different behavior of the goldcap
buffer of your system refer to the diagram below:
Fig. 2: RTC buffer time depending on temperature
www.kontron.com 15