'POS-LINK 21' is probably the most secure e-pos system available. With no PC keyboard or mouse, misuse is virtually impossible.
An essential feature is that tills can function independently of each other, with no reliance on a back-office server or a 'master' till'. We've put all the functionality into every till where it's needed. This also makes it a very cost-effective solution for single-till stores.
As standard, each till has two hard drives installed to allow automatic backup of software and data. Data loss due to hardware failure is a thing of the past ! Any small amount of data not automatically recovered after a disk failure will be manually recoverable from the duplicate copy of the 'audit roll' on the second disk.
The electronic 'audit roll' is available for twelve months (or more) in-store. A second copy, maintained on the other hard drive for security, is sent to Head Office each night and archived for reference by administrative staff.
Till users can be identified by keyed user number or magnetic staff-cards. Restricted functions, for instance refunds or discounts, can be authorised by keylock or staff-card (each staff-card has an authority level encoded). Password protection is also available, e.g. for support and maintenance functions.