1-34 Chapter 1: 7401-2xxx and 3xxx Product OverviewPOS Connector BoardThe POS Connector Board is a small daughter board that mountsdirectly on the Cash Drawer and Parallel Port header. Connectors onthe edge of this board form a second connector row above theProcessor Board connectors. Connectors are available for two cashdrawers, a customer display and a microphone.Power for the cash drawers (24 V) and VFD customer display (5 V and12 V) is supplied by the Enhanced Power Supply through the parallelconnector.Motion SensorThe terminal hardware can detect movement near the terminal andenables software to prompt system operation from a low-power state.Application software may also be able to make use of motion detectionwhen in the ON state if it is enabled by lower-level software.18290Motion SensorPower/Status LEDNCRMotion is detected as a change in ambient light level that is greaterthan a software-controlled threshold.A photodiode mounted behind the front bezel of the unit sensesambient light levels. The photodiode resides on a small circuit board(the Motion Sensor Board). A harness connects the Motion SensorBoard to the amplifier and motion sensing logic on the ProcessorBoard. The user Power/Status LED indicator shares this board.
