Mode Conditioning Patch Cables(MCP) are used to minimize Differential Mode Delay (DMD) which can occur when a single-mode laser source is launched into the center of a multimode fiber. A Mode Conditioning Patch Cord minimizes DMD signal degradation by offsetting the launch of the laser source away for the center of the multimode fiber. This is typically accomplished by using an offset splice between a single mode and multimode fiber on the transmit side of the patchcord. MCP are available for almost all connector styles with 2.5 or 1.25mm ferrules and common multi-mode fiber types (50 & 62.5mm).

Info: DMD(Differential Mode Delay) can raise multiple signals within the multimode fiber when a singlemode signal is launched into a multimode fiber. This effect can confuse the receiver and produce errors. Mode conditioning cables utilize an offset between the singlemode fiber and the multimode fiber to eliminate DMD and make it allowed to use 1000BASE-LX over existing multimode fiber cable systems.

How to used the mode conditioning patch cord?

The Gigabit Ethernet application standard requires the use of fiber optic light to achieve the specified data transmitting rates. Usually people use long wave transceiver modules for Gigabit Ethernet, these modules have to operate both single mode and multi mode fibers. And as we know, multimode fiber manufacturing techniques create index of refraction anomalies along the centerline of the multi mode fiber core. When a highly concentrated single mode fiber optic light is sent into the center of a multimode fiberglass, the modes that propagate through the index of refraction anomalies spread out in time causing modal dispersion, this effect is called differential mode delay. Differential mode delay results in reduced bandwidth over distance. By allowing the single mode laser launch to be offset away from the center of the multi mode fiber the mode conditioning patch cord reduces the effect of such differential mode delay.

How does mode conditioning cable work?

Mode conditioning cable launches the laser at a precise offset from the center of the multimode fiber. This causes the laser to spread across the diameter of the fiber core, reducing the effect known as differential mode delay which occurs when the laser couples onto only a small number of available modes in multi-mode fiber.

Why Mode conditioning cable should be ordered in pairs?

Mode conditioning cable are normally used in pairs. That means that you will need a MC cable at each end to connect the equipment to the cable plant. So then these cables are usually ordered in even numbers. The usual reason why someone may order one cable is so they may keep it as a spare.

How do you connect the mode conditioning cable?

If your gigabit 1000Base-LX switch is equipped with SC or LC connectors, please be sure to connect the yellow leg (Singlemode) of the cable to the transmit side, and the orange leg (multimode) to the receive side of the equipment.

It is imperative that this configuration be maintained on both ends. The swap of transmit and receive can only be done at the cable plant side.

PriceCable supply various kinds of mode conditioning fiber optic patch cables,and they are with optional length and connector types as well as cable structure. Our mode conditioning patch cords including SC,LC Equipment, ST, MTRJ, etc terminations, our products with fast delivery and competitive prices. Welcome to choose your mode conditioning patch cord from PriceCable.