8/14/2019 M4U-20A Rugged 901D Qualified Rackmount Computer

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FEATURES

4U x 20 inch depth design Aluminum construction Certified to Mil-S-STD-901D

Certified to MIL-STD-167-1 Three horizontal 5-1/4" drive bays One vertical 5-1/4" drive bay One high flow 120mm cooling fans Single Board Computer mounting Optional ATX Motherboard Redundant Power Supply Custom paint and logo available

SUPPORT

Superior pre- and post-sales technical support

All products carry a two year limited warranty 

CUSTOMIZATION

Custom paint and logo available

Custom chassis features to fit customerrequirements

Turnkey Configured Systems to Customer Spec

Chassis Plans · 8295 Aero Place · San Diego · CA · 92123Phone (858) 571-4330 · Fax (858) 571-6146

saleseng@chassisplans.comwww.chassis-plans.com

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C6CHASSIS

The Original Industrial Computer Source®

M4U-20ARUGGED MILITARY4U ENCLOSURE

R UGGED M I LI TARY  C LASS 

SYSTEMS ENGINEERED TO PERFORM™

 

The M4U-20A sets new standards for rugged militarackmount systems. The chassis is designed for hig

shock / high vibration environments such asvehicular mount, aircraft mount or transit case

installation. The short depth of 20 inches allows it tfit virtually all transit cases. The rugged constructio

will assure its reliable operation in that challengingenvironment.

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The system meets the Shock and Vibra-

tion Tests performed on 9N206-1 cabi-nets (DRS), compliance with MIL-STD-

167-1 vibration in each of the (3) majoraxes, and the requirements of MIL-S-901D for (9) nine blow, medium weight,

Grade B, Class II, Type A shock test( Test Conducted at NU Laboratories in

Annadale , NJ January 27, 2004, March

31, 2004, May 3-4, 2004 and June 22,2004. Test Report 9800.7.

Primary construction is from highstrength .060 aluminum alloy. A door

covers the drives and air inlet. The frontdoor provides an EMI / environmental

gasket, honeycomb EMI filter and twocaptive fasteners on the door to secure

the system from contamination. The lidis secured with a number of screws for a

tight seal. The overall effect is a very ro-bust enclosure to protect the system in

any foreseeable environment.

Cooling is provided by one 120mm hotswap fan providing 158CFM of high pres-

sure air flow.

The chassis is provided with three hori-zontal 5-1/4" drive bays and one verti-cally mounted 5-1/4" bay. A wide variety

of removable drive sleds and other

drives can be installed into these posi-tions in integrated systems.

The Original Industrial Computer Source® Page 2

M4U-20A 

NEXT GENERATION SOLUTION

System controls are mounted behind the

front door and include power control, sys-tem reset, and alarm reset. Indictors for

power and power supply failure are pro-vided and are visible through the frontdoor.

The M4U-20A is optimized for installation of 

a passive backplane and Single Board Com-

puter. This configuration fits the mission re-quirements for quick access to boards for

system repair and upgrade. A wide varietyof active backplanes provides PICMG 1.0and 1.3 compatibility for virtually any slot

mix required by the plug-in cards includingPCI-Express X1 through X16, PCI-X, PCI

and even ISA. A hold-down bar provides forsecuring the cards for any adverse shock

and vibration environment.

An optional configuration allows for mount-ing an ATX motherboard when advanta-

geous to the mission.

A redundant 4U PS/2 style power supply istypically included though other power sup-

ply options are available including DC input.A Mil Std 704 or 1275 compliant supply is

available for military airborne or ground in-stallations.

The chassis provides a rear mounted

ground stud and low smoke / zero halogenwiring is available for military compliance.

Please Note - The M4U-20A is a semi-custom COTS Plus solution. Chassis fea-

tures and construction are tuned to exactlymatch the intended application and environ-

mental requirements. As such, this is not anoff-the-shelf item. Samples are available for

evaluation.

8/14/2019 M4U-20A Rugged 901D Qualified Rackmount Computer

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Front Panel Controls/ ConnectionsPower on/off switch

System reset switchAlarm Reset Switch(Controls behind front door)

Cooling FansOne 120mm fan

158CFM free air ratingOptional Cooling system alarm board

Backplane MountingBackplane adapter plates for any back-

plane up to 12.3 inches wide provided

Optional ATX motherboard mounting kit

Card Hold DownTailored to individual installed card

height

Weight30lbs. (13.6kg) representative system

EnvironmentOperating and storage temperature,shock and humidity is dependant on in-

stalled components

Shock and Vibration Tests performed on

9N206-1 cabinets (DRS),Compliance with MIL-STD-167-1 vibra-

tion in each of the (3) major axesMIL-S-901D for (9) nine blow, medium

weight, Grade B, Class II, Type A shocktest

( Test Conducted at NU Laboratories inAnnadale , NJ January 27, 2004, March

31, 2004, May 3-4, 2004 and June 22,2004. Test Report 9800.7.)

Dimensions (W x H x D)

17 x 6.95 x 20.0-inch

Construction.060 Aluminum alloyRear panel card support

18ga Stainless SteelFinish

Aluminum—Chem Film

ColorBlack

Medium texture

Front DoorAluminumSecured with 4 captive fastenersEMI/Environmental gasket provided2x Captive screwsLocking latchHoneycomb EMI Filter

Lid

AluminumSecured with 18 6-32 screws

Rear Panel14 I/O slots18GA Stainless Steel

Drive CapacityThree 5.25-inch horizontal drive baysOne 5.25-inch vertical drive bay

Front Panel IndicatorsPower LED

Power Supply Failure LED

The Original Industrial Computer Source® Page 3

M4U-20A 

NEXT GENERATION SOLUTION

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