| PIM | P2PE Instruction Manual - the compliance document merchants must follow for PCI P2PE |
| P2PE | Point-to-Point Encryption - encrypts card data from PED to payment gateway |
| PAN | Primary Account Number - the card number printed on the payment card |
| PED | PIN Entry Device - the payment terminal where customers enter their PIN |
| POI | Point of Interaction - the device or system where the cardholder interacts |
| TMS | Terminal Management Service - centrally manages PED software, config, and keys |
| MID | Merchant ID - unique identifier assigned by the acquirer to identify the merchant |
| TID | Terminal ID - unique identifier for each terminal registered with the acquirer |
| PDC | Payment Device Controller - the host service that manages communication with PEDs |
