Physical Object: Pathway Communications Unit

PCU Communications

Overview
Requirements
Information Flows
Standards

Overview

'PCU Communications' provides basic radio communications between pathway infrastructure and nearby mobile devices. Communications with adjacent field equipment (including other PCUs) and back office centers that monitor and control the PCU are also supported. It supports the lower layers of the OSI stack, specifically the TransNet and SubNet layers of the ARC-IT communications model. Message relay capabilities are also included to improve radio communications range, reliability, and performance.

This functional object is included in the "Pathway Communications Unit" physical object.

This functional object is included in the following service packages:

This functional object is mapped to the following Functional View PSpecs:

None

Requirements

#	Requirement

Information Flows

Source	Flow	Destination
ITS Object	local ITS information	Pathway Communications Unit
Other ITS Objects	local ITS information	Pathway Communications Unit
Pathway Communications Unit	communications signature	Personal Information Device
Pathway Communications Unit	communications signature	Transportation Information Center
Pathway Communications Unit	local ITS information	ITS Object
Pathway Communications Unit	local ITS information	Other ITS Objects
Personal Information Device	communications signature	Pathway Communications Unit

Standards

Currently, there are no standards associated with the functional object itself though the interfaces may have standards associated with them.