Tesis previa a la obtención del Título de Ingeniero en Electrónica y ...

CONTENTS
Introduction 1
Terminal capabilíties ,. 1
2.1 Audio capabilities „ 2
2.2 Video capabilities 2
2.3 Transfer rate capabilities 2
2.4 Data capabilities , 2
2.5 Termináis on restricted networks: capability 2
2.6 Encryption and extensíon-BAS capabilities........... 3
Transmission 3
3.1 Transmission modes 3
3.2 Establishment of compatible modes of operatíon 3
Frame structure , 3
Basic sequences for in-channel procedures ., 4
5.1 Capability exchange sequence A 4
5.2 Mode switching sequence B 5
5.3 Frame reinstatement sequence C 5
Mode inítialízation, dynamic mode switching and mode O forcíng 7
6.1 Mode ínitialization procedure 7
6.2 Dynamic mode switching...... 9
6.3 Mode O forcing procedure , 9
6.4 Mode mismatch recovery procedure , 12
Recovery from fault conditions , 12
7.1 Unexpected loss of synchronízation or frame alignment 12
7.2 Recovery from loss of connection(s) 13
Network consideration: cali connection, disconnection and calí transfer....... 14
8.1 Cali connection............. 14
8.2 Terminal disconnection ., 15
8.3 Cali transfer 15
8.4 Conferencing , ,. 15
8.5 PCM format conversión 15
Procedure for activation and de-activation of data channels 16
9.1 Data equipment not conforming to Recommendation H.200/AV.270 16
9.2 Equipment operating with an MLP according to Recommendation H.200/AV.270 16
9.3 Simultaneous transmission of low-speed data and MLP 16
Procedures for operation of termináis in restricted networks 17
10.1 Network aspects ., 17
10.2 Reference connections 17
10.3 Transmission formats .• 17
10.4 Interworking between 56 kbit/s and 64 kbií/s termináis 19
10.5 Interworking between HQ orHn termináis in restricted and unrestricted networks 19
Procedure for use of BAS-extension codes 19
Bit occupancy and the sequencing of BAS codes 20
Procedure for dealing with 6B-Ho ínterconnection 22
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