What Is Twisted-Pair Cable? Splicing Twisted-Pair Cable Procedure

This article is about Splicing Twisted-Pair Cable Procedure and basic working working principle of Splicing Twisted-Pair Cable.

What Is Twisted-Pair Cable?

Twisted-pair cable is a type of copper cable that is commonly used for transmitting data in computer networks. It consists of two insulated copper wires twisted together in a helix pattern, which helps to reduce electromagnetic interference and crosstalk between adjacent wires. The twisting of the wires also helps to improve the cable’s bandwidth and signal quality.

There are two types of twisted-pair cable: unshielded twisted-pair (UTP) and shielded twisted-pair (STP). UTP is the most common type and is used for most Ethernet networks. It does not have any additional shielding to protect against interference, but the twisted wires provide enough protection in most cases. STP, on the other hand, has a metal foil or braided shield around each pair of wires to provide additional protection against interference. STP is typically used in industrial or high-performance applications where interference is a major concern.

Splicing Twisted-Pair Cable Procedure

Splicing twisted-pair copper cable is a common practice in backbone pathways to extend network connectivity. However, it’s essential to note that cable splicing in horizontal pathways is not recommended. In this article, we’ll discuss the guidelines and safety precautions to follow while splicing twisted-pair cable.

Choosing the Right Modular Connectors

Before splicing twisted-pair cable, it’s crucial to choose the right modular connectors. Check if the modular connectors and tools are suitable for the cable sheath type, wire gauge, connector type, number of banks of connectors, and splicing method. Ensure that the connectors’ size matches the splice closure size to avoid any complications during the installation process.

Consider Space for the Splice

Space considerations are crucial during the installation of a splice closure. Ensure that the cable pathway leading to the splice closure is not bent or twisted, and the minimum bend radius is maintained. Depending on the splice type, there are specific space requirements that you need to adhere to. For overhead splices, maintain a distance of 27 inches (69 cm) between the closure and the nearest overhead obstruction and 25 inches (64 cm) between closures. For horizontal splices, maintain a distance of 25 inches (64 cm) above the floor. For vertical splices, space requirements are limited by the position of the cable, closure, and supporting structure.

Setting up the Splicing Area

It’s essential to follow safety precautions while setting up the splicing area. Use ladders or scaffolding to access the area if necessary. Install a support structure for the splice if required and shift the cables to the support structure. Ensure that the proper bending radius of the cable is sustained, and there’s enough room for the splice closure.

Installing the Closure

Follow the closure manufacturer’s instructions while installing the closure. Install the shield bond connectors and connect the permanent bond across the splice opening before splicing the conductors. If the permanent bond cannot be placed, use a temporary bond strap to prevent electric shock. Secure the ends of each binder group with vinyl tape to prevent the loss of conductor pair identification. Identify each 25-pair binder group within the cables by using the appropriate color-coded plastic cable ties or the original binder wraps tied around each binder. Ensure that the splice opening does not spread or collapse during the splice operation and that each wire (i.e., ring and tip) is positioned correctly.

Label the Cables

After completing the splicing process, label the cables using labels with cable number and pair count to make identification easier during future maintenance operations.

Clear the Work Area

Finally, clear out the work area and dispose of any waste materials responsibly.

Conclusion

Splicing twisted-pair cable requires careful consideration of the cable’s specifications, space requirements, and following the manufacturer’s instructions. Use appropriate safety precautions and tools during the installation process to avoid accidents. By following the guidelines and safety precautions, you can ensure a successful and reliable twisted-pair cable splice.