Yes if you have a high quality SAM4s Cash Register or a Sharp Cash Register then you can add a Datacap device to it and turn your cash register into a credit card terminal.
After you add a Datacap to a SAM4s cash register or Sharp Cash Register it makes credit card transactions more secure, faster, and with fewer errors. The Datacap also will allow your cash register to accept your own private label Gift Card program which is Money in the Bank!
I’m only aware of one product that allow cash registers to become credit card terminals and that is the Datacap devices. If someone tells you your cash register can interface to a standalone credit card terminal they do not know what they are talking about.