1-36 Chapter 1: 7401-2xxx and 3xxx Product OverviewPower SupplyThe terminal uses an AC adapter for its power supply, concealed in theterminal mounting. The supply is inaccessible when the terminal is inthe normal operation and mounting position to prevent tampering, andsealed to help protect against spills or other environmental hazards.Note: The power supply automatically senses the proper AC voltage;therefore only normal servicing access is required.All power required to operate the base unit, PCMCIA option andPCMCIA cards, speaker option, scanner option, and bus-powered USBperipherals is provided by the power supply.The Processor Board serves as the hub to distribute power to allterminal functions. Cash drawers, VFD customer display, PS/2keyboard, PCMCIA daughter board and slots, scanner (through RS-232port), USB, hard disk, and the LCD all receive power through theirrespective Processor Board connectors.Uninterruptible Power System (Optional)The 4055 Uninterruptible Power System (UPS) protects yourequipment from various power related problems, providing visual andaudible indicators which alert you to utility-line failures. The 4055 isinstalled inside the pedestal mount, and includes a data line/LANconnection which ensures both the AC and data paths are protectedfrom surges and noise transmitted through the power lines.Integrated Scanner Module (Optional)The scanner, power supply, and Scanner Controller Board are locatedinside the Fixed-Angle Mount. The scanner interface is serial, and isconnected to RS-232/1, which is a powered serial port.Note: The Integrated Scanner feature includes the Fixed-Angle Mountand cannot be used with the Table Top Mount.The 7401 Scanner is a modified NCR 7890 or NCR 7892 Scanner,however, there are a few differences. Refer to the NCR 7401/7890 or7892 Scanner Differences chapter for additional information.
