ANT-20/ANT-20E Broadband Analyzer/GeneratorTechnical Background TB-92 Testing Switched Virtual Circuits (SVCs)VI: ATM Test Control and ATM Test Results2.1 General features of the signaling (Software version 6.5)The signaling functions of a terminal on the user-network interface (UNI) are emulated. Theimplementation used has the following features:• Support for “Calling”, “Called” and “Self Call” modes.• The signaling channel is freely selectable. The default setting is VPI=0, VCI=5.• “Associated” and “Non-associated” signaling can be selected (for Q.2931 only).• The following standards are supported:– IITU-T Q.2931– ITU-T Q.2961– ATM Forum UNI 3.0– ATM Forum UNI 3.1• The following signaling AAL standards are supported:– ITU-T Q.2110– ITU-T Q.2130– ITU-T Q.SAAL.1– ITU-T Q.SAAL.2• The following address formats are supported:– Native E.164– NSAP ICD– NSAP DCC– NSAP E.164– NSAP E.191• Sub-addresses are supported2.2 Interoperability with other instrumentsThe ANT-20 completely fulfills the quoted standards. If you make a connection to any otherinstrument, please note the following:• The setup message that is generated contains the following information elements (IE):– Protocol discriminator– Call reference– Message type– AAL parameter: User defined AAL (only if the “User defined AAL type” option is selected;otherwise this IE is omitted.)– ATM user cell rate– Broadband bearer capability: BCOB-X– Called party number– Called party subaddress (only if subaddresses are used)– Calling party number– Calling party subaddress (only if subaddresses are used)– QoS parameters
