Provides different routes for PLS circuits based on the following arrangements: In Drop-and-Insert mode where channels of a channelized T1, T3, SONET OC-3, or SONET OC-12 service category can be dropped off and new channels can be simultaneously picked up or inserted.In Branch Off mode where all SDPs are treated as one shared medium and each point can autonomously send and receive data.Mandatory PLS features are detailed in the Networx Contracts Section C.2.5.1.2.1 and are briefly described below:Īllows interconnection of three or more subscribers premises as follows: Non-domestic geographic coverage and offerings for PLS is specific to the different Networx service providers. Channelized or Concatenated SONET OC-3, OC-12, OC-48, and OC-192.Channelized or Unchannelized T1, T3, E1 and E3.PLS provides transparency to any transmission protocol used and ensures visibility to all bit sequences transmitted through the SDP. PLS is a legacy service that was offered on FTS2001 contracts that supports the full range of technical capabilities available on commercial offerings.
Coordination across the carrier networks may be required for interoperability. In the example, a second link is provided by Carrier B, including the access link between the two networks. The figure illustrates a link provided by carrier A and terminated on its POP. PLS, because it is an industry standard offering, allows for connection to and interoperation with all other networks, including other Networx Universal and Networx Enterprise carriers networks. PLS provides dedicated connections that can interoperate with Government specified SDPs such as PBXs, Multiplexers, Routers, Video codecs, and Group 4 Faxes. The figure below shows an illustrative PLS configuration. The range of line speeds, route diversity and reliability options provided by PLS allows an Agency to satisfy a wide variety of requirements for mission critical applications. PLS supports data rates from subrate-DS0 to T3 to SONET OC192 (including E1, E3 and OCONUS equivalent analog circuits). PLS may be ordered as domestic (CONUS and OCONUS), or non-domestic service. Connectivity between end points is permanently established until an Agency requests a service modification, move, or disconnect. Because PLS is a dedicated service, the maximum bandwidth purchased its always available on an end-to-end basis. PLS provides dedicated connectivity on a non-switched basis between two or more designated Service Delivery Points ( SDPs) for voice, data, video, and multimedia service applications at Agency-specified bandwidths. Private Line Service (PLS) Technical Summary
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