SubscribeNext Generation of ATR Military Chassis Systems from CM Computer.
CM-ATR-X5 Series
The CM-ATR-25/35/45 is a range of new generation chassis which introduce the concept of Universal Military ATR Enclosures capable of accommodating and freely intermixing all standard conduction cooled and air cooled Eurocard formats. Decidedly well suited for critical defense and aerospace systems requiring premium quality that can be provided only by leading-edge technology.
Setting Chassis Standards
CM Computer has established a market first by offering the military ATR chassis as a truly organized and universal product range able to meet the complete spectrum of 6U & 3U military applications.
In fact, other manufacturers offer the market only a limited and incomplete set of individual costly enclosures, each designed to solve a single, isolated application. This new series is more compact, lighter, powerful and flexible than their notable CM-RA-X0 predecessors.
Our multiple innovations introduce many unmatched firsts in the industry. Until now, no other chassis has been able to supply more than 1KW of PSU power on the backplane, integrate four heat exchangers on the chassis structure, improve temperature of enclosed boards by up to 15 ēC, offer unlimited I/O interconnection capability and accept all standard power voltages.
Experience Makes the Difference
The CM-ATR-X5 chassis are the result of the combined effort of our most experienced electrical, power electronics, thermodynamic and mechanical engineers.
Since 1989 our design team has earned a solid reputation by releasing three successful generations of ATR chassis and designing scores of different military VME boards.
Our company brings customers long-term availability products, crafted with all-embracing indispensable features and blessed with outstanding critical aspect performance.
We were careful to design this catalog to be useful to you and to facilitate your product evaluation task. Don´t miss the Features section to discover forty substantial reasons that make our product the unparalleled chassis your professional application deserves.
Chassis Cooling Technique
Military Enclosure heat management is a complex matter and is affected by specific environmental
factors and field deployment limitations. At CM we are convinced that each application requires a different type of chassis, a conclusion that led us to offer twelve CM-ATR-X5 COTS versions allowing our customers to select the optimum enclosure depending on predominant cooling technique, number of slots and internal power dissipation.
Four Off-the-Shelf Cooling Options
Standard Sealed (/S)
Low cost standard dry-air enclosure with inner fans for internal air re-circulation. Chassis generated heat is dissipated by a combination of cold-plate conduction, radiation and free-air convection through ambient air.
This minimum maintenance option is ideal for low wattage applications where ambient air is laden with hostile or harmful contaminants. Available in size 1⁄2 ATR (CM-ATR-25/S), 3⁄4 ATR (CM-ATR-35/S) & 1 ATR (CM-ATR-45/S).
Sealed With Extended Fins (/SEF)
Ultimate self-dissipation sealed enclosures that also incorporate internal air re-circulation fans.
These dry-air chassis are fitted with over-size cooling fins on top cover, rear panel and side-walls in order to maximize radiation and natural convection. Cold-plate mounting is recommended.
These low maintenance sealed chassis are suitable for medium wattage military and aerospace applications. Size options are: 1⁄2 ATR (CM-ATR-25/SEF), 3⁄4 ATR (CM-ATR-35/SEF) & 1 ATR (CM-ATR-45/SEF).
Flowthrough Air Cooled (/FAC)
Non-sealed chassis in which ambient air is directly forced over the electronic modules using rear mounted exhaust fans.
This highly efficient thermal management technique is suitable for full PSU wattage applications.
This type of chassis is a medium cost option available in three standard sizes 1⁄2 ATR (CM-ATR-25/FAC), 3⁄4 ATR (CM-ATR-35/FAC) & 1 ATR (CM-ATR-45/FAC).
Heat Exchanger Sidewalls (/HES)
High performance dry-air chassis incorporating air re-circulation fans inside.
Heat generated within the enclosure is conducted to the hollow sidewalls & rear panel heat exchangers where it is dissipated to the ambient environment by forced air cooling rear fans or by vehicle platform air plenum. A top cover heat exchanger is optional.
This chassis version is suitable for sealed applications up to 3/4 of total PSU wattage. Cooling technique available in 1⁄2 ATR (CM-ATR-25/HES), 3⁄4 ATR (CM-ATR-35/HES) & 1 ATR size (CM-ATR-45/HES).