3Com corebuilder 3500 Implementation Manual page 95

Node Types
Six station and concentrator types are used to describe station
configurations and topologies. Table 10 lists these node types and their
abbreviations.
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Table 10 Node Types and Abbreviations
Node Type
Single MAC-Dual Attachment Station SM-DAS
Dual MAC-Dual Attachment Station
Single Attachment Station
Dual Attachment Concentrator
Single Attachment Concentrator
Null Attachment Concentrator
Figure 16 shows how these six node types may connect to an FDDI dual
ring.
Key Concepts
Abbreviation
DM-DAS
SAS
DAC
SAC
NAC
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