SFP OC-12 / STM-4 / 622Mb
OC-12 or STM-4 is a network line with transmission speeds of up to 622.08 Mbit/s (payload: 601.344 Mbit/s; overhead: 20.736 Mbit/s).
| Part No. | Data Rate | Wavelength | Source | Distance | DDM (optional) |
Application | ||
| FE / GbE | SDH/ SONET |
FTTx | ||||||
| EOLS-1306-20 | 622Mb; SM | 1310nm | FP | 20km |  |
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| EOLS-1306-40 | 622Mb; SM | 1310nm | FP | 40km | |
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| EOLS-1506-80 | 622Mb; SM | 1550nm | DFB | 80km | |
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| EOLS-1506-B | 622Mb; SM | 1550nm | DFB | 120km | |
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| EOLS-1506-C | 622Mb; SM | 1550nm | DFB | 160km | |
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G.957 Parameters specified for STM-4 optical interfaces
| Parameters | Unit | Values | |||||||
| Digital signal | STM-4 according to Recommendation G.707 | ||||||||
| Nominal bit rate | kbit/s | 622 080 | |||||||
| Application code (Table 1) | |
I-4 | S-4.1 | S-4.2 | L-4.1 | L-4.2 | L-4.3 | ||
| Operating wavelength range | nm | 1261a)-1360 | 1293‑1334/ | 1430-1580 | 1300-1325/ | 1280-1335 | 1480-1580 | 1480-1580 | |
| 1274-1356 | 1296-1330 | ||||||||
| Transmitter at reference point S | |
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| Source type | |
MLM | LED | MLM | SLM | MLM | SLM | SLM | SLM |
| Spectral characteristics: | |
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| – maximum RMS width (s) | nm | 14.5 | 35 | 4/2.5 | – | 2.0/1.7 | – | – | – |
| – maximum –20 dB width | nm | – | – | – | 1 | – | 1 | < 1b) | 1 |
| – minimum side mode suppression ratio | dB | – | – | – | 30 | – | 30 | 30 | 30 |
| Mean launched power: | |
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| – maximum | dBm | -8 | -8 | -8 | 2 | 2 | 2 | ||
| – minimum | dBm | -15 | -15 | -15 | -3 | -3 | -3 | ||
| Minimum extinction ratio | dB | 8.2 | 8.2 | 8.2 | 10 | 10 | 10 | ||
| Optical path between S and R | |
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| Attenuation rangec) | dB | 0-7 | 0-12 | 0-12 | 10-24 | 10-24 | 10-24 | ||
| Maximum dispersion | ps/nm | 13 | 14 | 46/74 | NA | 92/109 | NA | b) | NA |
| Minimum optical return loss of cable plant at S, including any connectors | dB | NA | NA | 24 | 20 | 24 | 20 | ||
| Maximum discrete reflectance between S and R | dB | NA | NA | -27 | -25 | -27 | -25 | ||
| Receiver at reference point R | |
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| Minimum sensitivityc) | dBm | -23 | -28 | -28 | -28 | -28 | -28 | ||
| Minimum overload | dBm | -8 | -8 | -8 | -8 | -8 | -8 | ||
| Maximum optical path penalty | dB | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Maximum reflectance of receiver, measured at R | dB | NA | NA | -27 | -14 | -27 | -14 | ||
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Module, transceiver. telsiz. Módulo de transceptor. Оптический модуль, трансивер. émetteur-récepteur. ricetrasmittente. Sende- und Empfangsgerät. Transceptor. .الإرسال 光收发模块. 光トランシーバ.
