TA TSY 000202 : ISSUE 2

Information contained in this document will allow loop test systems from multiple suppliers to be integrated with a maintenance Operations System (OS) using an interface that conforms to the standard forward-looking X.25 protocol & TL1 language specified in TA-TSY-000062 entitled, Protocol & Language for Operations Systems & Network Terminal Equipment Interfaces. A related Technical Advisory TA-TSY-000844 (TSC/RTU Functional Requirements for Generic Loop Testing Commands), contains the required test system analysis & responses for test commands received over the test interface from the OS.