©Sealevel Systems, Inc.
R2 Manual
10
SL9247 2/2017
R27016
IBR-i7-3517UE
-40 - 50 °C
Requires Industrial Temperature SSD
3
The R27004, R27008 and R27016 can operate with no airflow at 50C as long as the steady-state CPU usage
does not exceed 50%. If CPU usage is sustained at a workload greater than 50%, the CPU will throttle itself
back to keep its internal temperature in a safe range.
If the application environment requires the computer to operate at 50C with steady state CPU usage greater
than 50%, some additional cooling must be used to ensure safe operation of the electronics.
The R2 computer system is a fan-less, solid state computer that relies on thermal conduction to move heat
from internal components to the outside of the enclosure. The lid is designed as a finned heat sink to
increase overall surface area. Three main cooling methods can be used to optimize removal of heat from
the system.
1.
Airflow
2.
Thermal conduction through mounting
3.
Computer orientation
Airflow over the lid provides the most effective heat removal of these three options. It is optimal to mount
the computer in an area that has either natural or forced airflow to constantly remove heat from the
enclosure.
Mounting the computer to a large thermally conductive surface (such as an I-Beam, steel cabinet or other
large metal surface) allows heat to travel through the enclosure and be dissipated into the large structure.
POWER SUPPLY
The power supply provided has a universal AC input. It provides 24 VDC @ 2.7 A max output to the R2
system. Typical power consumption varies depending on COM Express Module, memory capacity,
OS/software activity and peripheral devices. AC current draw will never exceed 1.4 A.
The included AC/DC power supply has an operational temperature range of 0 °C to 40 °C. If the
computer must be located in an environment greater than 40 °C, a different power source should
be used. Ensure the power source can supply the power listed below.
All necessary system voltages are generated from a single DC input capable of accepting 18 VDC to 36 VDC
(fed by above DC power supply).
Acceptable System Input Voltage
18 VDC-36 VDC
DC Current Rating (Dependent on COM
Express Module , input voltage and load)
375 mA-2150 mA
