Supported Device Classes

Supported Device Classes

2/27/2008

POS for .NET represents the 36 peripheral devices identified in the Unified Point of Service (UPOS) specification by abstract Interface and Basic device classes. POS for .NET also provides nine abstract Base device classes that further implement core POS functionality specific to those particular device types.

Hardware vendors use the device classes to create Service Objects that link their peripheral devices to the applications.

Interface Classes

POS for .NET supplies Interface classes for all 36 UPOS devices. The Interface classes provide the entry points as specified in the UPOS specification, but offer minimal functionality.

Basic Classes

POS for .NET Basic classes contain basic functional support for all 36 devices. Basic classes provide generic support for opening, claiming, and enabling the device, device statistics, and management of delivering events to the application. In addition, each Basic class contains a set of inherited and protected methods that can be implemented by the Service Object.

Base Classes

For the nine primary UPOS device types, POS for .NET supplies fully functional Base classes that extend their corresponding Basic classes with device-specific members. You could think of these classes as enhanced or extended Basic classes. Because Base classes provide a nearly complete implementation, Service Object developers should derive from these classes whenever possible.

UPOS Devices and POS for .NET Device Classes

The following table lists the UPOS devices with their equivalent POS for .NET Basic and Base device classes (where applicable).

UPOS Device	Interface Class	Basic Class	Base Class
Belt	Belt	BeltBasic
Biometrics	Biometrics	BiometricsBasic
Bill Acceptor	BillAcceptor	BillAcceptorBasic
Bill Dispenser	BillDispenser	BillDispenserBasic
Bump Bar	BumpBar	BumpBarBasic
Cash Changer	CashChanger	CashChangerBasic
Cash Drawer	CashDrawer	CashDrawerBasic	CashDrawerBase
CAT - Credit Authorization Terminal	Cat	CatBasic
Check Scanner	CheckScanner	CheckScannerBasic	CheckScannerBase
Coin Acceptor	CoinAcceptor	CoinAcceptorBasic
Coin Dispenser	CoinDispenser	CoinDispenserBasic
Electronic Journal	ElectronicJournal	ElectronicJournalBasic
Electronic Value Reader / Writer	ElectronicValueRW	ElectronicValueRWBasic
Fiscal Printer	FiscalPrinter	FiscalPrinterBasic
Gate	Gate	GateBasic
Hard Totals	HardTotals	HardTotalsBasic
Image Scanner	ImageScanner	ImageScannerBasic
Item Dispenser	ItemDispenser	ItemDispenserBasic
Keylock	Keylock	KeylockBasic
Lights	Lights	LightsBasic
Line Display	LineDisplay	LineDisplayBasic	LineDisplayBase
MICR - Magnetic Ink Character Recognition	Micr	MicrBasic
Motion Sensor	MotionSensor	MotionSensorBasic
MSR - Magnetic Stripe Reader	Msr	MsrBasic	MsrBase
PIN Pad	PinPad	PinPadBasic	PinPadBase
Point Card Reader / Writer	PointCardRW	PointCardRWBasic
POS Keyboard	PosKeyboard	PosKeyboardBasic	PosKeyboardBase
POS Power	PosPower	PosPowerBasic
POS Printer	PosPrinter	PosPrinterBasic	PosPrinterBase
Remote Order Display	RemoteOrderDisplay	RemoteOrderDisplayBasic
RFID Scanner	RFIDScanner	RFIDScannerBasic	RFIDScannerBase
Scale	Scale	ScaleBasic
Scanner (Bar Code Reader)	Scanner	ScannerBasic	ScannerBase
Signature Capture	SignatureCapture	SignatureCaptureBasic
Smart Card Reader / Writer	SmartCardRW	SmartCardRWBasic
Tone Indicator	ToneIndicator	ToneIndicatorBasic

Reference

Concepts

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