NETWORK CONNECTIONS
Page 3 - 5
Figure 3-3. FDDI Connector Types
Types A, B, and M are precision connectors, mechanically keyed to
assure proper connections to Primary-In and Primary-Out fibers.
Types A and B provide dual attachment to the primary and
secondary data paths of the main ring. Type M is used for single
attachment stations, at the workstation end of the SAS lobe.
The type S connector has a wide, centrally located keyway and is
considered a non-precision connector for use at the station end of
an SAS lobe cable. Figure 3-3, FDDI Connector Types, shows the
configurations of the four types of media interface connectors.
For a more detailed description of FDDI network characteristics
and configurations, please read the ANSI X3T9.5 specification.
Type B
FDDI RECEPTACLES
SINGLE
ATTACHMENT
TYPE S
IN
OUT
DUAL
ATTACHMENT
Type A
Type S
SECONDARY OUT
PRIMARY IN
TYPE A
PRIMARY OUT
SECONDARY IN
TYPE B
Type M
TYPE M
FDDI CONNECTORS
IN
OUT
