— 17 —4. CIRCUIT EXPLANATION4-1. HARDWARE DIAGRAMKeyboardPowersupplyPopupdisp.i/fDrawerScannerHHS-15Drawer1 i/fDrawer2 i/fRS-232CCOM1RS-232CCOM2DrawerSlipprinterSP-1300MODEMorPCCPU RAMFlashMemoryMain DisplayNote: Shadowed device and dot line indicate option devices.PRT-CB-8A/-8BPRT-CB-8CPRL-CB-2PowersupplyExternalprinterUP-360Powersupply31AD-U/ECF cardJournal printerReceipt printerPopupdisplayMulti drawer kit MDL-12