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Singlemode | Multimode |
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Very high range up to 40 kilometers and more, therefore especially suited for
| Medium range from several hundred meters to a few kilometers, therefore especially suited for
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Much higher costs for transceivers compared to Multimode | Significantly lower costs for transceivers compared to Singlemode |
Only one fiber strand is used for each direction | Multiple fiber strands are used |
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Description | |
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LC connector: (Lucent Connector or also Local Connector) The LC connector was developed by Lucent Technologies. Due to the compactness (Small Form Factor) it features a high port density and is therefure used in switches quite often. LC connectors are available in two common formats:
Important: LC-PC / LC-UPC and LC-APC must not be connected to each other, as this would lead to an increased attenuation and the connection would most likely not functionit is very likely that the LC-APC connector would be damaged! | |
MPO/MTP connector: (Multipath Push-On and also Multiple-Fibre Push-On) / (Mechanical Transfer Push-On) The MPO connector was originally developed by NTT and further developed to MTP by the joint venture USA-Conec.
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Comparison of Singlemode cable types:
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Necessary number of fiber strands and cable recommendation for LANCOM Multimode SFP modules:
LANCOM SFP module | Module type | Singlemode / Multimode | Max. transfer rate | Max. range | Connector type | Necessary strand number | Recommended cable type | Notes |
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LANCOM SFP-SX-LC1 | 1000Base-SX | Multimode | 1 Gbit/Sec. | 550 m | LC | 2 strands | as of OM1 | |
LANCOM SFP-SX2-LC1 | 1000Base-SX | Multimode | 1 Gbit/Sec. | 2000 m | LC | 2 strands | as of OM2 | 2 km only possible with mode conditioning cable, otherwise max. 1 km. |
LANCOM SFP-LX-LC1 | 1000Base-LX | Singlemode | 1 Gbit/Sec. | 10 km | LC | 2 strands | OS1 / OS2 depending on the scenario | |
LANCOM SFP-BiDi1310-LC10 | 10GBase-BX | Singlemode | 10 Gbit/Sek. | 20 km | LC/PC | 1 Faser | OS1 / OS2 je nach Szenario | Bidirectional module with 1270 und 1330 nm wavelength. |
LANCOM FP-BiDi1550-SC1 | 1000Base-BX | Singlemode | 1 Gbit/Sec | 20 km | SC/UPC | 1 strand | OS1 / OS2 depending on the scenario | Bidirectional module with 1310 and 1550 nm wavelength. |
LANCOM SFP-SX-LC10 | 10GBase-SR/SW | Multimode | 10 Gbit/Sec. | 300 m | LC | 2 strands | as of OM3 | |
LANCOM SFP-LX-LC10 | 10GBase-LR/LW | Singlemode | 10 Gbit/Sec. | 10 km | LC |
2 strands | OS1 / OS2 depending on the scenario | ||||
LANCOM SFP-LR40-LC10 | 10GBase-ER | Singlemode | 10 Gbit/Sec. | 40 km | LC |
2 strands | OS2 | |||||||
LANCOM SFP-SR-LC25 | 25GBase-SR/SW | Multimode | 25 Gbit/Sec. | 300 m | LC | 2 strands | OM5 | |
LANCOM SFP-LR-LC25 | 25GBase-LR/LW | Singlemode | 25 Gbit/Sec. | 10 km | LC |
2 strands | OS1 / OS2 depending on the scenario | |||||||
LANCOM SFP-SR-MPO40 | 40GBase-SR/SW | Multimode | 40 Gbit/Sec. | 300 m | MPO | 8 strands | OM5 | The middle 8 of 12 fiber strands are used. It is also possible to use a cable with 12 or 16 fiber strands. In this case the remaining 4 or 8 fiber strands would lie idle. |
LANCOM SFP-LR-LC40 | 40GBase-LR/LW | Singlemode | 40 Gbit/Sec. | 10 km | LC |
2 strands | OS1 / OS2 depending on the scenario |
Glossary:
- SFP: Small Formfactor Pluggable, supports 1 GBit/Sec.
- SFP+: Extended version of SFP, supports 10 GBit/Sec.
- SFP28: Extended version of SFP+, supports 25 GBit/Sec.
- QSFP+: Quad Small Formfactor Pluggable, supports 40 GBit/Sec. (4 x SFP+)
- SR: Short Reach Modul, usually ranges of a few hundred meters (e.g. 10GBase-SR)
- LR: Long Reach Modul, ranges of a few kilometers (e.g. 10GBase-LR)
- ER: Extended Reach Modul, ranges up to 40 kilometers (e.g. 10GBase-ER)
- OM: Optical Multimode
- OS: Optical Singlemode