Teledyne T200, Operation Manual, Page: 306 / 425

Principles of Operation Teledyne API
– T200 NO/NO2/NOx Analyzer Operation Manual
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13.3.2. CPU
The unit‟s CPU card, installed on the motherboard located inside the rear panel, is a low
power (5 VDC, 720mA max), high performance, Vortex86SX-based microcomputer
running Windows CE. Its operation and assembly conform to the PC 104 specification.
Figure 13-12: CPU Board
The CPU includes two types of non-volatile data storage: a Disk-on-Module (DOM) and
an embedded flash chip.
13.3.2.1. DISK-ON-MODULE
The DOM is a 44-pin IDE flash drive with storage capacity 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).
13.3.2.2. 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.
06858E DCN7057