DS21FT44 и другие
| Компонент | Описание | Производитель | |
| DS21FT40 | Four x Three 12 Channel E1 Framer |
Dallas Semiconductor |
 |
| DS21FT40N | Four x Three 12 Channel E1 Framer |
Dallas Semiconductor |
|
| DS21FT42 | 4 X 3 Twelve Channel T1 Framer |
Dallas Semiconductor |
|
| DS21FT42N | Four x Three 12 Channel T1 Framer |
Dallas Semiconductor |
|
| DS21FT44 | 4x3 Twelve Channel E1 Framer, 4x4 Sixteen Channel E1 Framer |
Dallas Semiconductor |
|
| DS21FT44N | Four x Three 12 Channel E1 Framer |
Dallas Semiconductor |
|