Inside plant will also have distribution frames and other equipment including passive optical network (name depends on the Service Provider).
A typical power system for a switching office in an inside plant consists of the elements listed below: For safety and reliability reasons, it is desirable that all telecommunications loads be DC powered with minimal AC-powered devices used.
However, the integrated or mesh bonding schemes are preferred over isolated bonding networks because of the added costs and efforts required to manage, control, and maintain the isolation for the equipment, particularly during equipment upgrade and modifications to the plant.
This preference is based on a pragmatic desire for lower costs and ease of management, and to simplify operations during plant modifications/upgrades.
For a comprehensive analysis of the energy efficiency and environmental soundness of a power system, one should ideally consider a wider range of factors than strict energy conversion AC-to-DC power efficiency.