Isdn Product Overview; Isdn Protocol Overview - Nortel Meridian Meridian 1 Feature Description And Administration

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ISDN protocol overview

553-2901-301 Standard 9.00 January 2002

ISDN product overview

ISDN services are categorized into two types of interfaces, Primary Rate and
Basic Rate.
ISDN Primary Rate Interface (PRI), provides 23B+D (T-1 carriers) or
30B+D (E-1 carriers) digital connectivity between the Meridian 1 or
Succession Communication Server for Enterprise 1000 and the following
interfaces:
• host computers
• other Meridian 1 and Succession CSE 1000
• SL-100
• DMS-100, DMS-250
• QSIG
ISDN PRI 30B+D access is provided to the following Central Office
connectivities:
• Australia ETSI
• AXE-10 (Sweden and Australia)
• SwissNet
• NEAX-61
• SYS-12
• Numeris VN3
• 1TR6
• NET-3 and ETS 300 403 (EuroISDN)
• Asia Pacific
ISDN protocols govern the format, timing and sequencing used to exchange
data and control information between two terminal stations connected
through an ISDN network.