One word or caution, don't allow your card, if Visa, to participate in a PIN based pos functionality. That is a violation of Visa Regulation Section 3.2C1.a bullet 4. Issuer must not allow a Visa card, that is used primarily to access a line of credit, to participate in any pin-based debit program, unless participation is for ATM access only.
When setting your card up, think of it as another access device, like a check.
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CRCM CAMs