Cable & Tube

Lay Length Measurement

Accurately, Consistently Measure the Lay Length of Twisted-Pair Cables

Data communications cables rely on the twist length of the pairs to maintain proper electrical performance. In particular, the differences in the lay lengths between the pairs are a primary factor that affect Near and Far End Crosstalk in the cables. The TIA 568 C.2 specification provides the specification limits for Category cables. All of these Category cables contain at least four (4) twisted pairs that need to have a minimum amount of electrical isolation.

Cable manufacturers have a vital need to control the lay lengths of their category cable products to maintain product performance. Variations across different equipment, and problems caused by equipment wear, can result in non-conforming cables. Troubleshooting a lay length problem continues to be a costly, time-consuming effort without good process measurement technology.

The BETA LaserMike LayScan measurement system can help you accurately and consistently measure the lay length of twisted-pairs cables and observe systematic lay variations that are typically caused by twinning and cabling operations.

Learn more about the LayScan measurement system below.