Double sphere coordination point charge field model
International Service Coordination Center
PCF Point coordination function
freight train inspection and service point
freight train main inspection and service point
inspection and service point for car before loadin
NSP Native Service Point
NSP Network Service Point
overland common point service {= OCP service}
passenger train inspection and service point
Self-service service terminal
single-plane (through-plane service) service
transit freight train inspection and service point
point point protocol terminated aggregation