The C15 is a card reader coupled with a special interface and a serial port. It can be mounted on a photocopier or a computer allowing payment for copies and print jobs. The C15 card reader supports almost all protocols used in the copier industry and is also compatible with most Pay-per-Print software.
| Controller model | S15 |
| Card type | Unilog Smart |
| Multiple vend | Yes |
| Display | Yes LCD 2x16 Green Back-lighted |
| Language | English/French/Spanish programmable |
| Number of vend prices | Up to 8 |
| Vend price range | 1¢ to $9.99 per copy |
| Sales report | Visual by display, printer or download |
| Serial/USB communication | Yes (SEM protocole) |
| Voltage | 24vac by power supply 120vac/24vac included |
| Communication harness | Depending on copier model or Serial DB9 |