Typical Part Numbers
| Part Num | Name |
| NTCA61AE | Optera LH 1.53 |
| NTCA61BA | Optera LH 2.01 |
| NTCA61CA | Optera LH 3 |
| NTCA61DA | Optera LH 4 |
| NTCA61EA | Optera LH 5 - 5.1 |
| NTCA61EB | Optera LH 5 .13 |
| NTCA61FA | Optera LH 6.01 |
| NTCA61GA | Optera LH 7 - 7.01 |
| NTCA61JA | Optera LH 9 - 9.01 |
| NTCA61KA | Optera LH 10 - 10.01 |
| NTCA61KC | Optera LH 10 .02 |
| NTCA61LA | Optera LH 11 |
| NTCA61GA | Optera SDH DX 1 |
| NTCA61HA | Optera SDH DX 2.01 - 2.04 |
| NTCE60JA | Optera SDH DX 3.01 - 3.03 |
| NTCE60KA | Optera SDH DX 4 - 4.05 |
| NTCE60LA | Optera SDH DX 4 .1 |
| NTCE60MA | Optera SDH DX 5 -5.01 -5.02 |
| NTCE60MB | Optera SDH DX 5.03 |
| NTCE60MC | Optera SDH DX 5.04 |
| NTCE60NA | Optera SDH DX 6.00 - 6.01 |
| NTCE60NC | Optera SDH DX 6.03 |
| NTCE60BA | TN64X4FR 1.01 |
| NTCE60CA | TN64X4FR 2.00 - 2.02 |
| NTCE60EA | OC192 6.00 |
| NTCE60FA | OC192 7.02 |