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<p>This International Standard specifies the mapping functions for a pair of on-demand inter-PINX connections using a circuit</p>
<p>mode basic service and the supplementary service User-to-User Signalling (service 3) of a public ISDN at the same time.</p>
<p>In order to connect a Private Integrated Services Network Exchange (PINX) to another PINX, mapping functions are required</p>
<p>to adapt the specific interfaces at the C reference point to the application at the Q reference point. As such, mapping functions</p>
<p>provide for physical adaptation to the interface at the C reference point. Mapping functions also provide for the mapping of</p>
<p>user channels and signalling information at the Q reference point to the appropriate channels or timeslots at the C reference</p>
<p>point.</p>
<p>The C and Q reference points are defined in ISO/IEC 11579-1.</p>
<p>At the Q reference point the mappings provide a 64 kbit/s service for user channels and a packet mode service for the</p>
<p>signalling channel. Bearer conditioning is outside the scope of this International Standard, except for providing the layer 2 for</p>
<p>the signalling channel at the Q reference point.</p>
<p>Scenario management is outside the scope of this International Standard.</p>
<p>This International Standard is applicable to PINXs which can be interconnected to form a Private Integrated Services Network</p>
<p>(PISN) and which support signalling protocols at the Q reference point.</p>
Reģistrācijas numurs (WIID)
32966
Darbības sfēra
<p>This International Standard specifies the mapping functions for a pair of on-demand inter-PINX connections using a circuit</p>
<p>mode basic service and the supplementary service User-to-User Signalling (service 3) of a public ISDN at the same time.</p>
<p>In order to connect a Private Integrated Services Network Exchange (PINX) to another PINX, mapping functions are required</p>
<p>to adapt the specific interfaces at the C reference point to the application at the Q reference point. As such, mapping functions</p>
<p>provide for physical adaptation to the interface at the C reference point. Mapping functions also provide for the mapping of</p>
<p>user channels and signalling information at the Q reference point to the appropriate channels or timeslots at the C reference</p>
<p>point.</p>
<p>The C and Q reference points are defined in ISO/IEC 11579-1.</p>
<p>At the Q reference point the mappings provide a 64 kbit/s service for user channels and a packet mode service for the</p>
<p>signalling channel. Bearer conditioning is outside the scope of this International Standard, except for providing the layer 2 for</p>
<p>the signalling channel at the Q reference point.</p>
<p>Scenario management is outside the scope of this International Standard.</p>
<p>This International Standard is applicable to PINXs which can be interconnected to form a Private Integrated Services Network</p>
<p>(PISN) and which support signalling protocols at the Q reference point.</p>
