Dnr-12-1G Cooling Air Flow; Air Flow - UEi RACKtangle DNR-12-1G Series User Manual

2.4.3 DNR-12-1G
Cooling Air
Flow
© Copyright 2018
United Electronic Industries, Inc.
DNR-X-1G Series RACKtangle and HalfRACK Systems
As shown below in Figure 2-9, cooling air is drawn into the rear of the enclosure
via four fans, routed forward over the electronic circuit boards, up to the top of
the enclosure, and then out the top rear of the enclosure. The system is
designed to maintain positive pressure cooling within the enclosure at all times.
Figure 2-9. DNR-12 Air Flow
Two sensors mounted on the backplane over the Power Module and over the
CPU board continuously monitor internal temperatures, turning fans on if the
internal temperature exceeds 45°C, off if it falls below 45°C, and shutting down
power if a high limit is exceeded.
October 2018
The DNR-12-1G Series RACKtangle System
Chapter 2 13
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