What is the maximum number of pairs that PE-89 can handle?

To determine the maximum number of pairs that PE-89 can handle, it is important to understand the specifications and capacities of the PE-89 model in the context of outside plant design. The PE-89 is designed primarily for telecommunications and network applications, particularly for use in central offices or cross-connect facilities.

The correct answer, which is 3000 pairs, reflects the design capabilities and industry standards associated with this type of equipment. The PE-89’s ability to manage this number of pairs allows for efficient organization and connectivity of numerous communication lines, which is essential for service providers handling large volumes of data and voice traffic.

Understanding the capacity of such equipment is critical for outside plant designers who need to ensure appropriate planning and scaling of network infrastructures. Therefore, knowing that the PE-89 can support up to 3000 pairs ensures that designers can adequately plan for future expansion and the needs of a growing network. This capacity helps in determining how many subscribers or services can be effectively managed through this central equipment.

Other options reflect numbers that exceed the operational limits of the PE-89 and therefore, are not feasible for this equipment's use in real-world applications.