ABSTRACT: The DS-0A (64-kbps interconnection) currently used in telecommunications digital data networks connects 64-kb/s signals to terminal and multiplexing equipment. The DS-0A interconnection has application in the Common Channel Signaling (CCS) network links, Basic Dedicated Digital Service (BDDS) circuits, Public Packet Switched Service (PPSS) trunks, Public Switched Digital Service (PSDS) trunks, and Integrated Services Digital Network (ISDN) 64-kb/s Bearer (B) channels, as well as other situations not yet identified.

This Technical Reference (TR) contains the view of Telcordia on generic requirements for a DS-0A systems interconnection and is intended for internal Local Exchange Carrier (LEC) central office use in connection with digital data links in various networks.

TR-TSY-000458 replaces TA-NPL-000458.