Cpu; Disk-On-Module (Dom); Flash Chip; Figure 6-6. Cpu Board - Teledyne T400 User Manual

6.3.1 CPU

The unit's CPU card is installed on the motherboard located inside the rear panel. It is a
low power (5 VDC, 720mA max), high performance, Vortex 86SX-based microcomputer
running Windows CE. Its operation and assembly conform to the PC/104 specification.
The CPU includes two types of non-volatile data storage: a Disk-On-Module (DOM) and
an embedded flash chip.
6.3.1.1

DISK-ON-MODULE (DOM)

The DOM is a 44-pin IDE flash drive with a storage capacity up to 128 MB. It is used to
store the computer's operating system, the Teledyne API firmware, and most of the
operational data generated by the analyzer's internal data acquisition system (DAS).
6.3.1.2

FLASH CHIP

This non-volatile, embedded flash chip includes 2MB of storage for calibration data as
well as a backup of the analyzer configuration. Storing these key data on a less heavily
accessed chip significantly decreases the chance of data corruption.
In the unlikely event that the flash chip should fail, the analyzer will continue to operate
with just the DOM. However, all configuration information will be lost, requiring that the
unit be recalibrated.
148

Figure 6-6. CPU Board

Teledyne API – Model T400 O Analyzer 083730400A DCN8130
3