Confidential Document: Page 12
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4 Hardware Features and Capabilities
4.1 Ruggedized Control Electronics
The OCS contains custom Delphi designed control electronics based on standard Pentium™ computer architectures
that have been enhanced to provide reliable operation over a wide range of environmental conditions. All
electronics are located on a single module to minimize internal cabling and increase reliability.
Features include:
• Pentium and Pentium III based Processor Core
• 300MHz – 1 GHz Options
• RAM expandable up to 512MB
• FLASH expandable to 288 MB
• 10/100 BaseT Ethernet Controller
• RS232/RS485 Serial Interface
• High Performance LCD Video Controller with support for 18/24/36/48 bit TFT Panels and up to 1024x768
pixel resolution
• Supported Windows Operating Systems include Windows 98/2000/NT/CE
• Extended temperature components can operate over –40°F to +185°F
• Lightning Protection on all power and data IO
• Temperature Monitoring Sensors
• Ambient Light Monitoring Sensors and LCD brightness control electronics
• Watchdog Circuit to reset system in the event of a software or hardware fault
• Loop Detector Input
4.1.1 Integrated Diagnostic Hardware
Integrated diagnostic hardware provides a high level of fault detection and isolation capability. These include
automatic serial loop-back circuitry, heater and fan test circuits, LCD backlight monitoring, and non-volatile fault
history log files. Diagnostic functions are run upon system reset and the results are available via the network
interface, through the serial connection or via the LCD diagnostic display screen.
4.1.2 Reliability
The OCS is designed with a Mean Time Between Failure (MTBF) rate of 50,000 hours excluding the backlight
bulbs. This equates to an average continuous reliable operation of 5.7 years.
4.2 Environmentally Sealed Enclosure
The OCS enclosure is fully environmentally sealed and conductively cooled. A sealed enclosure protects the LCD
and control electronics from external contaminants such as dirt, dust, grease, chemicals and insects. Furthermore, no
external fans are utilized which eliminates noise than can interfere with audio systems and reduces maintenance
associated with filters. All heat from the LCD backlight and control electronics is conducted to the rear of the
enclosure and dissipated to the ambient environment through thermally efficient fins. Eliminating external fans
increases the product’s overall reliability, as fans are inherently the least reliable component.
4.3 System Protection and Monitoring Functions
All OCS displays are equipped with advanced protection and monitoring functions to ensure reliable operation in
harsh environmental conditions.
4.3.1 Lightning Protection
All data and power inputs are protected from lightning surges by sophisticated surge suppression technology. This
minimizes the chance of damage to the OCS or POS system due to power spikes or lightning.
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