Introduction
■DEFINITY’s universal hardware and flexible software allow systems to be reconfigured quickly in emergency situations. Port networks can be added and network routing can be changed in a matter of minutes.
Based on the needs of your organization, three redundancy configurations are available:
■Standard Reliability
■High Reliability
■Critical Reliability
Standard Reliability
The
■One control carrier
■One
■Port networks interconnected by single fiber cables
High Reliability
High reliability systems include the following:
■Two control carriers (located in the Processor Port Network cabinet), which contain duplicate processor and
■One
■Duplicate connections between the Center Stage Switch and the Processor Port Network
■Expansion port networks connected by single fiber cables
■Duplicate switch node clock circuit packs (one is active and the other is in standby) in each switch node carrier
Figure 1-8 shows a high reliability, directly connected system.
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