Installation Guide

FinMInstallationGuide DQ0266070/A.01 B‐3
RSS RadioSignalStrength
QoS QualityofService
Sector
AgroupofradiosthatconsistsofoneHBSandseveralHSUs
thatcommunicatewiththeHBS.
SLA
ServiceLevelAgreement‐thebasicagreementbetweenthe
serviceprovideranditscustomerregardingcertainaspects
oftheserviceprovided.Forexample,whatshouldbethe
datarate,throughput,jitteroftheline,whoshouldpaywhat
fees,themeantimebetweenfailure(MTBF)oftheequip‐
ment,andsoforth,
SU
SubscriberUnit:aradiothatcantransmitandreceivetoone
point.SeealsoHSU
TBS
TransportationBaseStation.SimilartoanHBSorBS,but
usedwithhigh‐speedtransportationapplications.
TMU TransportationMobileUnit.Simi lartoanSU
TrackSide
Itemsorsubjectmatterthatrelatestotheenvironmentnot
onorinsidethetrain.Itisnotlimitedtopreciselynexttothe
track.Alsocalled“wayside”
TrainSide
Itemsorsubjectmatterthatrelatestotheenvironmentonor
insidethetrainitself.Alsocalled“On‐board”
TSN TimeSensitiveNetwork
Uplink
DatatrafficfromanHSUtoanHBS,or
DatatrafficfromanRT‐BtoanRT‐A
Wayside
Itemsorsubjectmatterthatrelatestotheenvironmentnot
onorinsidethetrain.Itisnotlimitedtopreciselynexttothe
track.Alsocalled“TrackSide”
WISPA
WirelessInternetServiceProviderAssociation.Anorganiza‐
tionthatmanagesregistrationofwirelessdevicesthatoper‐
ateclosetoTDWRfacilitiesrunbytheFAA.
VRRP
VirtualRouterRedundancyProtocol‐anetworkingprotocol
thatprovidesforautomaticassignmentofavailableIProut‐
erstoparticipatinghosts.
TableB‐1:Terminology(Sheet3of3)
Term Description
FOR REGULATORY REVIEW