Technical data

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

Figure 1: Typical Digital Audio Communication System

DACS hardware and software components are described in more detail in the following sections.

DACS Platform Descriptions

ASTi offers several available chassis options for the DACS processing nodes.

2U Chassis

The standard and most-commonly purchased DACS is based on a 2U-high (3.5”), 19” rackmount

industrial chassis. Individual circuit cards are inserted into a passive backplane with access from

the rear of the chassis.

4U Chassis

An optional chassis upgrade is available to convert from a 2U to a 4U-high (7”) rackmount chassis

with a wider backplane and greater expandability.

MicroDACS

This chassis offers a small installation footprint, light weight, and low power consumption. A sin-

gle, PC/104-based TDM card is available in this system. A removable media module (Compact-

Flash™ or Microdrive™) acts as the system hard drive.

Host

Computer

Host

Commands

Instructor

RIU

Pilot

Environmental

Sounds

Amplifier

VGA

Monitor

Keyboard

Ethernet

Simulator

Cockpit

DACS