Technical data

ASTi DACS: Operation & Maintenance Manual (Version 4, Rev. B.1) www.asti-usa.com

Appendix D: System Speciﬁcations

Temperature And Humidity Requirements

The DACS is able to operate in an environment of 50 to 90 degrees F, relative humidity of 10% to

70% non-condensing, and an altitude range of 0 to 8000 feet. Storage environments should be

limited to a 32 to 135 degree F (0 to 55 C) range.

Chassis Cooling

2U and 4U Chassis

The 2U and 4U chassis are cooled with two fans - one for the power supply, and one for the chas-

sis.

System Weight

2U Chassis

A typical system weighs about 23 lbs.

4U Chassis

A typical system weighs about 38 lbs.

MicroDACS Chassis

A typical system weighs about 4 lbs.

Reliability

The ASTi sound system has been designed to use the minimal complexity of electronic hardware,

using the highest quality components. Special attention has been paid to the selection of tradition-

ally less reliable elements such as the hard drive. To this end the DACS contains a hard disk with

a MTBF of 250,000 hours. Typical system MTBF will be greater than 10,000 hours. These num-

bers are based on predicted values with actual ﬁeld data being superior. Below is listed typical

MTBFs for several line replaceable units.

Description Part Number MTBF

Model Processor C12X-XXX >60,000

Waveform Processor C208-XX >80,000

Host Interface C30X-X >250,000

Maintainability:

The selection of a passive backplane architecture and industrial format chassis greatly simpliﬁes

the replacement of any element within the DACS. This results in a quick LRU replacement time

of under 15 minutes and Mean Time To Repair (MTTR) of less than 30 minutes for most compo-

nents and most models.