| Source Element | Destination Element | Flow |
|---|
| Cities and Towns Transit Vehicles | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| County Transit Kiosks | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Driver Identification Card | Commercial Vehicles | cv driver credential |
| Independent School District Buses | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Local Dial-A-Ride Transit Vehicles | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Mountain Lift Paratransit Vehicles | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Mountain Line Bus Arrival System | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Mountain Line Transit Buses | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Private Transit Routing Service Provider | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| YCAT Transit Passes | payment device update |
| YCAT Transit Passes | request for payment |
| Transit Provider Vehicles | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| Traveler Card-Smartcard | Cities and Towns Transit Vehicles | payment |
| Cities and Towns Transit Vehicles | payment device information |
| County Transit Kiosks | payment |
| County Transit Kiosks | payment device information |
| Independent School District Buses | payment |
| Independent School District Buses | payment device information |
| Local Dial-A-Ride Transit Vehicles | payment |
| Local Dial-A-Ride Transit Vehicles | payment device information |
| Mountain Lift Paratransit Vehicles | payment |
| Mountain Lift Paratransit Vehicles | payment device information |
| Mountain Line Bus Arrival System | payment |
| Mountain Line Bus Arrival System | payment device information |
| Mountain Line Transit Buses | payment |
| Mountain Line Transit Buses | payment device information |
| Private Transit Routing Service Provider | payment |
| Private Transit Routing Service Provider | payment device information |
| Private Vehicle OBE | border card data |
| Transit Provider Vehicles | payment |
| Transit Provider Vehicles | payment device information |
| YCAT Buses | payment |
| YCAT Buses | payment device information |
| YCAT Kiosks | payment |
| YCAT Kiosks | payment device information |
| YCAT Transit Passes | payment |
| YCAT Transit Passes | payment device information |
| YCAT Buses | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| YCAT Transit Passes | payment device update |
| YCAT Transit Passes | request for payment |
| YCAT Kiosks | Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| YCAT Transit Passes | payment device update |
| YCAT Transit Passes | request for payment |
| YCAT Transit Passes | Private Transit Routing Service Provider | payment |
| Private Transit Routing Service Provider | payment device information |
| Traveler Card-Smartcard | payment device update |
| Traveler Card-Smartcard | request for payment |
| YCAT Buses | payment |
| YCAT Buses | payment device information |
| YCAT Kiosks | payment |
| YCAT Kiosks | payment device information |