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Each FC 2722 FDDI adapter kit requires one Micro Channel card slot adjacent to
the 2720 adapter. A maximum of three FC 2722 adapters per system is
supported.
FDDI - Fiber Dual-Ring Upgrade (#2723)
Dual attaching stations (DAS) using the RISC System/6000 FDDI Fiber
Single-Ring Adapter and FDDI Fiber Dual-Ring Upgrade will allow customers to
attach to both the primary and secondary FDDI rings. In the event of a failure,
this type of attachment allows the wrapping of the primary and the secondary
ring for high network availability and problem isolation. The dual-ring upgrade
can also attach to concentrator ports as a single-attached station or a
dual-homing station. A dual-homing station attaches to two different
concentrators with the second concentrator acting as a backup or a standby for
the station in the event of a concentrator or port failure.
Characteristics:
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Supports dual-ring FDDI attachment at 100 Mbps
Requires two Micro Channel slots (including the single slot required for the
FDDI single-ring adapter)
Maximum of three FDDI dual-ring adapters supported on each RISC
System/6000 machine (depending upon slot availability per machine type)
Fiber optic cables are required for adapter connectivity, and are the
responsibility of the customer
FDDI - Fiber Single-Ring Adapter (#2724)
Single attaching stations (SAS) using the RISC System/6000 FDDI Fiber
Single-Ring Adapter will allow customers to attach the workstation directly to an
FDDI primary ring of 100 Mbps via an FDDI 100 Mbps concentrator. The
concentrator option offers additional protection by isolating the network from
routine on/off activity and individual workstation failures.
Characteristics:
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Supports single-ring FDDI attachment at 100 Mbps
Requires one Micro Channel slot
Maximum of six FDDI single-ring adapters supported on each RISC
System/6000 machine (depending upon slot availability on each machine
type)
Fiber optic cable is required for adapter connectivity, and is the
responsibility of the customer
FDDI - STP Single-Ring Adapter (#2725)
Single attaching stations (SAS) using the RISC System/6000 FDDI-STP
Single-Ring Adapter will allow customers to attach the workstation directly to an
FDDI primary ring of 100 Mbps via an FDDI 100 Mbps concentrator. The
concentrator option offers additional protection by isolating the network from
routine on/off activity and individual workstation failures.
Characteristics:
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Supports single-ring FDDI attachment at 100 Mbps
Requires one Micro Channel slot
Maximum of six FDDI-STP single-ring adapters supported on each RISC
System/6000 machine (depending upon slot availability per machine type)
LAN Concepts and Products: Adapters, Hubs and ATM