| DS2155 | Framer |
| DS2155 | TDM Misc |
| DS2152 | Line Interface |
| DS2153Q | Line Interface |
| DS2154 | Line Interface |
| DS2151Q | Line Interface |
| DS21552 | Line Interface |
| DS21554 | Line Interface |
| DS2155 | Line Interface |
| DS2156 | Line Interface |
| DS2152 | Line Interface |
| DS2153Q | Line Interface |
| DS2154 | Line Interface |