This Recommendation: ? describes typical emergency management for outside plant facilities; ? describes monitoring systems for outside plant facilities using wireless or wired network; ? provides an overview of disaster monitoring systems for outside plant facilities; ? provides design considerations for disaster monitoring systems for outside plant facilities. It should be noted that fire disasters are not considered in this Recommendation because disaster management concerning fire is described in [ITU-T L.20]@ [ITU-T L.21] and [ITU-T L.22].