Network Time Source

Overview
Triples
Security
Interfaces Diagram
Standards

Overview

The 'Network Time Source' represents the external time source the Connected Vehicle Service Monitor System uses as the basis for time. This is likely implemented as a Stratum-2 Network Time Server that is 2 steps removed from a basic time source (e.g., atomic clock).

This physical object does not have any functionality defined in ARC-IT, as it exists outside the system functional boundary.

This physical object is included in the following Service Packages:

SU05: Location and Time

Triples

Source	Flow	Destination
Network Time Source	time	Center
Network Time Source	time	Connected Vehicle Roadside Equipment
Network Time Source	time	Data Distribution System
Network Time Source	time	Field
Network Time Source	time	Service Monitor System

Security

This physical object has the following security levels for the associated service packages.

Physical Object Security
Security Class	Confidentiality	Integrity	Availability	Service Package
Class 3	Not Applicable	High	Moderate	Location and Time

Interfaces Diagram

Standards

Currently, there are no standards associated with the physical object itself though the interfaces may have standards associated with them. For standards related to interfaces, see the specific information flow triple pages.