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Network Cabling
What is Mode Conditioning Patch Cables?
29
Apr
Apr
Definition of Mode Conditioning Patch Cables
Mode Conditioning Patch Cables (MCP) is a duplex multimode patch cord that has a small length of single-mode fiber cable at the start of the transmission leg including a single mode to multi-mode offset fiber connection part. Mode Conditioning Patch Cables are assembled with connectors using 62.5/125um or 50/125um fiber. The calibrated offset reduces phenomena called differential mode dispersion, or DMD, which can cause the transmitting laser pulse to spread out and merge into neighboring pulses creating bit errors in the transmission signal. Figure 1 Mode Conditioning Patch Cord
Use of Mode Conditioning Patch Cables
Mode conditioners are built in the form of a simple duplex patch cable, so they can easily be installed in a system without the need for additional components or hardware. Their length can range from one meter and up to support virtually any network topography. When you need to connect the Gigabit-LX or a 10-Gigabit LRM transceiver optics with existing multimode fibers, you need this MCP cables installed at both ends of the network link. The commonly used Mode Conditioning Patch Cables (MCP) cables including LC to LC, LC to SC, LC to ST, LC to FC, SC to SC, ST to ST connectors with OM1/OM2/OM3 fiber cables.What can Transceiver Optics be used with MCP cables?
| Transceiver Optics Type |
| 10GBase-LRM SFP+ Optics |
| 10GBase-LRM XFP Optics |
| 10GBase-LRM X2 Optics |
| 10GBase-LRM XENPAK Optics |
| 10GBase-LRM XFP Optics |
| 1000Base-LX 1×9 Optics |
| 1000Base-LX GBIC Optics |
| 1000Base-LX SFP Optics |
| 1000Base-LX SFF Optics |
I don’t think your application is what mode-conditioning is for.
Mode-conditioning serves for connecting LX or LRM transceivers (at both ends) over multimode fiber cables, not the inverse as in your case where the transceivers at both ends are SR and being connected over single mode cable.
Maybe it could work still if the link distance (mode-condition cable at end 1 + single mode cable in-between + mode conditioning cable at end 2) is within the limits of the SR standard which is 300m max. I’d love to know if you succeed with this.
We are looking for a suitable mode conditioning cable solution.
The edge switch is CISCO C9200L-24P-4X-E (24-port)/ C9200L-48T-4X-E(48-port).
The core switch Is CISCO C9410R, 10 slot chassis.
We intend to use SFP-10G-SR-S (10G multimode SFP) at both ends.
But the fiber cable to be used for backbone is N164.TBUN12Y – (Part no. LANmark-OF Tight Buffer Universal 12x Singlemode 9/125 OS2 LSZH Yellow) from Nexans.
We understand that this combination of Multimode SFPs & Single-mode fiber optic cable does work with the use of appropriate Mode conditioning Fiber Optic Patch cable (MCP).
The connectors will be LC on both sides.
Appreciate if you could please advise us suitable, good quality MCP cables.
I don’t think your application is what mode-conditioning is for.
Mode-conditioning serves for connecting LX or LRM transceivers (at both ends) over multimode fiber cables, not the inverse as in your case where the transceivers at both ends are SR and being connected over single mode cable.
Maybe it could work still if the link distance (mode-condition cable at end 1 + single mode cable in-between + mode conditioning cable at end 2) is within the limits of the SR standard which is 300m max. I’d love to know if you succeed with this.