DNR-X-1G Series RACKtangle and HalfRACK Systems
Chapter 3 32
The DNR-6-1G Series HalfRACK System
October 2018 www.ueidaq.com
508.921.4600
© Copyright 2018
United Electronic Industries, Inc.
3.4.3 DNR-6-1G
Cooling Air
Flow
As shown in Figure 3-6 below, cooling air is drawn into the rear of the enclosure
via three 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 3-6. DNR-6 Air Flow
Two sensors mounted on the backplane monitor internal temperatures
continuously, 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.
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