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ISDN Features
Primary Rate Interface (PRI) Installation
Aspire ISDN PRI Manual
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5
ISDN Features
Primary Rate Interface (PRI) Installation
Description
Your system is compatible with ISDN Primary Rate Interface (PRI) services. The PRI services currently
supported include:
●
Basic PRI Call Control (BCC).
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Display of incoming caller's number (with software 1.02 or higher and when allowed by the
telco).
●
Routing in the system based on the number the caller dialed (Called Number Information element).
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ISDN maintenance functions (such as In Service/Out of Service Messaging).
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Speech and 3.1KHz audio.
Conditions
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Each T1/PRI Interface PCB is switch selectable between T1 and PRI operation. For more on T1 trunk-
ing, refer to the T1 Trunking feature in your system's Software Manual (P/N 0893200).
Installing the Aspire T1/PRI Interface PCB (P/N 0891009)
System Requirements:
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T1/PRI Interface PCB, P/N 0891009
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Aspire system software: Any Version
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NTCPU (P/N 0891002) with PAL Upgrade (P/N 0891039)
OR
Enhanced NTCPU (P/N 0891038)
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For DTMF receivers with such options as ANI/DNIS
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CSU/DSU Unit and interconnecting cables (see below)
The T1/PRI PCB has a single 24 channel circuit which you can configure for either T1 trunking or PRI.
When set for PRI, each T1/PRI PCB provides 24 PRI (23 B & 1 D) channels with 64K Clear Channel
response Each PCB uses a single slot in the system cabinet.
Connecting the T1/PRI Interface PCB requires the following equipment.
When installed, the T1/PRI Interface PCB uses the first block of 24 consecutive trunks. For example, if you have
an 8COIU PCB installed for trunks 1-8, the T1/PRI Interface PCB will automatically use trunks 9-32. If you have
8COIU PCBs installed for trunks 1-8 and 17-24, the T1/PRI PCB will use trunks 25-48. The T1/PRI Interface
cannot use trunks 9-16 (even if available) since they are not part of a consecutive block of 24 trunks.
• Satellite 931 CSU (P/N 85945)
• External 8-pin RJ-45 crossover cable required
• T1/PRI Interface PCB (P/N 92060A)