A performance management unit manages a primary interface and a standby or secondary interface to two channels of an optical communications network having APS capabilities. The apparatus being located in a wireless network coverage area, which can receive network information related to a wireless network, from a base station of a wireless network, an access point, and another terminal which has already received network information and is located a short distance away, thereby minimizing a power consumption amount required for receiving network information. experienced by the slurry as a result of the hydrolysis of quicklime to produce hydrated lime, and accordingly can be added to the slurry composition prior to the addition of quicklime.