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Impulse APT Design Protocol

The Impulse APT design protocol is a series of guidelines which were developed as part of the design process for our range of flexible, cost-effective rack-mount PCs, the CobraRack. This process ensures that our CobraRacks are designed to the highest level, and all aspects of acoustic, power and thermal management are considered and implemented during the initial design phase.

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Acoustics


The Acoustic stage of the CobraRack system design was developed to combat ambient noise generated by add-on components, such as fans, hard drives and graphics cards.

“Low-noise” fans

Low noise after-market fans typically run at slower speeds, which in turn produce less noise. To make up for the reduction in rotational speed, they instead utilise special blade systems which are able to provide more air-per-rotation than traditional fans.

Cable management

When air flow around a rack chassis is blocked by an obstruction, it produces a “whistling” noise. This is solved by our in-house engineers, who carefully plan the route of the internal cables to avoid obstruction. In addition, the power supplies we use are modular meaning we are able to remove any spare cables that are not required.

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Power


As part of the development of the Power stage of the Impulse APT design protocol, our engineers looked to reduce the overall power consumption and improve energy efficiency across the CobraRack range of rack-mount PCs.

Due to the nature of most industrial applications, rack-mount PCs are generally operating 24/7, meaning it is essential that our systems are as efficient as possible.

Intel reduced power consumption and TDP technology

CobraRacks utilise Intel’s latest technology, which adopts the 14nm manufacturing process. The latest series of chips, ideal for embedded applications, spans all five brand extensions - Core i7, Core i5, Core i3, Pentium, and Celeron, offering TDP as low as 4.5W for extreme power efficiency. The latest processors also hand back more control to the operating system, allowing for more responsive power management.

80 Plus Certified Energy Efficient Power Supplies

Our CobraRack rack-mount PCs use super-efficient 80 Plus certified power supplies, which are designed and certified to operate at a minimum of 80% efficiency, compared to alternative power supplies which generally operate at between 50 – 60% efficiency.

Class Efficiency at 20% Load Efficiency at 50% Load Efficiency at 100% Load
"80 Plus" Bronze 82% 85% 82%
"80 Plus" Silver 85% 88% 85%
"80 Plus" Gold 87% 90% 87%

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Thermal


Overheating is one of the most common causes of computer system failures in industrial applications. Due to the nature of industrial computing the environments in which systems are installed can vary greatly in temperature, humidity and dust levels.

Extra effort has been made when designing CobraRack systems to ensure all components are efficiently cooled and dust free, and cabling is structured in such a way that fans and vents are not blocked and restricting airflow.

Impulse are able to, if required, fit high flow fans and washable dust filters, as well as extended temperature components, that ensure thermal stability for our CobraRack systems even in the harshest and most extreme industrial environments.

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