Definition: RTS, also known as ultimate tensile strength, is the maximum load that a cable can withstand before breaking. Our newly redesigned fiber termination enclosures introduce new features to a well-established product line, making them easier to work with and more aesthetically pleasing while maintaining the ruggedness expected from Optical Cable Corporation. Extreme mechanical stress rated for STS cranes, mining equipment, 190m/min speed. Extreme mechanical stress rated for STS cranes. ADSS Fiber Optic Cable work in a large-span two-point support (usually hundreds of meters, or even more than 1 km) overhead state, completely different from the traditional concept of overhead (post and telecommunications standard overhead hanging wire hook program, an average of 0. The RTS1U-3APB fiber optic enclosures allow for.