Digital Alert Systems DASDEC-1EN Schematics

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The DASDEC-1EN ES Encoder/Decoder is constructed from commercially available PC

platform hardware. The DASDEC software can run upon a wide variety of hardware. The

specific hardware chosen for the DASDEC-1EN was based on specific features and price.

The VIA EPIA-M motherboard was chosen. This is of course the heart of the system.

Other important parts include an 2x20 character LCD display, IDE hard drive or flash

drive, RAM memory, an optional sound card, 2 status LED's, and a simple speaker. The

chosen LCD is the LK202-25 from Matrix Orbital. The DASDEC-1EN is controlled via a

LAN and/or external Serial Port and/or by Keyboard/Mouse/VGA monitor display . It

displays state via the LCD and also via a VGA monitor.

Here is a diagram of the overall schematics of the DASDEC-1EN, which is in essence,

a personal computer equipped with an LCD:

Internal

Speaker

Status LED's:

System and

Alert Status

See below for the layout of the VIA motherboard and the Matrix Orbital LCD.

DASDEC-1EN Schematics

July 14, 2004

On Board Ports – Serial,Audio,etc

RAM module

VIA Motherboard

LCD for Alert information

IDE Hard Drive

Optional PCI Card