The color-coding—typically red, black, yellow, blue, green, and white—helps users quickly identify different signal lines, making troubleshooting and configuration far easier. One of the key advantages of using box jumpers is their modularity. Multiple colors allow you to color code your control panel. This article is part of the DigiKey Field Guide for Industrial. WAGO's TOPJOB ® S jumper range the key to the flexibility of TOPJOB ® S Rail-Mount Terminal Blocks. Adjacent jumpers for continuous commoning from 1 to 2 or 1 to 3 make many different commoning challenges easy to meet: They save space and allow flexible adaptation and unlimited expansion. What. Furthermore, terminal plans with jumpers must be recalculated after changing the default symbol color so that the jumpers are displayed in the desired color. The terminal plan for connectors bears several special characteristics compared. Terminal block accessories like end plates, jumpers, and markers are the components that transform a row of loose connection points into a secure, organized, and code-compliant wiring system. The other colors are arbitrary anyways and you'll generally need reds and blacks all the time.