Basic Rate Interface
| Couche | Protocoles Canal D | Protocoles Canal B | |||||
|---|---|---|---|---|---|---|---|
| Signalisation | Paquet | Télémétrie | Commut. circuit | Semi permanent | Commut. paquet | ||
| Application | Utilisateurs | ||||||
| Présentation | |||||||
| Session | |||||||
| Transport | |||||||
| Réseau | Q.931 | X.25.3 | IP* | X.25.3 | |||
| Liaison | Q.921 LAP-D | HDLC* PPP* |
LAP-B | ||||
| Physique | Accès de base I.430, primaire I.431 | ||||||
| * Protocoles non RNIS | |||||||
Basic Rate Interface ou Basic Access (dont l'acronyme est BRI / BA) qui signifie accès de base en français, est une interface d'accès à un réseau RNIS. Cette interface est également nommée T0.
Il comprend 2 canaux B et un canal D pour la signalisation : 2B+D. Les 2 canaux B ont un débit de 64 kbit/s chacun, et le canal D 16 kbit/s, pour un total de 144 kbit/s.
Notes et références
Voir aussi
Liens externes
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