Optic patch cords

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Figure 2: Simplex vs duplex fiber patch cord. Fiber patch cables covered with PVC jacket are flexible at normal installation temperatures. PVC fiber optic patch cord is usually used for indoor applications such as horizontal runs from the wiring center.

While LSZH cable is used in unventilated areas exposed to public, such as subways and tunnels and also used for rooms that are not easy to get out quickly. Aside from these connectors, there is a latest connector design called MDC connector, which enables the highest achievable connector density by delivering a 3X advantage over a standard LC connector.

If divided by the criteria whether the connector on each side is the same, they can be divided into same-connector type fiber patch cord and hybrid fiber patch cord. While hybrid fiber patch cord has different connectors on each end, like fiber patch cord LC to SC.

If the port type of devices on both sides are the same, you can choose the same-connector type fiber patch cord, or you need choose the hybrid one. Fiber optic connectors are designed and polished to different shapes to minimize back reflection, which is particularly important in single mode applications.

Whereas UPC fiber patch cords apply to optical systems that are less sensitive to insertion loss such as digital TV and telephony. Fiber patch cord is evolving to keep pace with the ever-increasing bandwidth needs. Some specially designed fiber patch cables emerge to fit different application needs. Knowing the available options would save us significant time and money.

Here are some special fiber optic patch cords for use in certain circumstances. Armored Fiber Patch Cord. Armored fiber patch cord retains all the features of the common fiber patch cord. The main difference between armored fiber patch cable and common fiber patch cord is that armored fiber jumpers are designed with a stainless armored tube inside the jacket and outside the optical fiber as you can see in figure 4. This design enables armored fiber patch cords strong enough to be anti-rodent and resist the steps by an adult.

Strong as it is, the armored fiber patch cord is actually as flexible as standard fiber optic patch cord and can be bent randomly.

Figure 4: Common fiber cable vs armored fiber cord. Bend Insensitive Fiber Patch Cord. Bend insensitive fiber patch cable is highly resistant to bend related damage and loss. We have gone into detail about the differences between Singlemode and Multi-mode fiber optic cable in a previous article here. But how about Singlemode and Multi-mode fiber optic patch cables — or jumper cables as they are often called?

Singlemode cables have a core of 8 to 10 microns. In singlemode cables, light travels toward the center of the core in a single wavelength. This focusing of light allows the signal to travel over longer distances without a loss of signal quality than is possible with Multi-mode cabling. Most Singlemode cabling is color-coded yellow. Multi-mode cables have a core of either 50 or