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RAD RADring
Modular LAN Access Hub |
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- RADring is a highly
compact Token Ring / Ethernet / FDDI connectivity
center. It supports Token Ring networks at 4 and 16
Mbps, Ethernet networks at
10 Mbps, and FDDI connectivity. The system provides
a modular approach to the implementation of IEEE
802.5 and IEEE 802.3 LANs.
- RADring combines a
highly flexible, modular design with the capability
to create a system that can easily adapt to changing
user requirements. The system is ideally suited for
Token Ring and Ethernet installations of any size.
- Multiple rings can
coexist as independent LANs within the same RADring
hub.
- RADring can be
installed as either a single centralized access
center, capable of providing up to 80 Token Ring /
Ethernet port connections, or as part of a larger
network, through connection of additional hubs.
- Shielded/unshielded or
screened twisted pair, fiber optic and coax cables
are supported for Token Ring networks, while
10BaseT, 10BaseFL and AUI are supported for Ethernet
networks.
- Data integrity is
ensured at the port, module and segment level. This
is provided through automatic fault detection,
bypass and recovery. Full backup support can be
extended to the connectivity center through the
implementation of an [optional] redundant power
supply.
- Diagnostic LEDs on
each module indicate power, management and activity
status. All modules can be inserted and removed
under hot swap plug in / plug out conditions without
network disruption.
- RADring accommodates a
variety of modules. These include:
- Passive access modules
- Active access modules
- Ring In / Ring Out modules
- Repeater modules
- Router/Bridge modules
- FDDI / Token Ring Bridge
- System modules
- Management modules
- Ethernet modules
A list of available modules is provided in Table 1.
For detailed specifications on each module, refer to
individual data sheets.
- Internetworking
support is integrated into the hub to provide
connectivity to local and remote LANs. The
elementary bridge modules perform MAC level
filtering and forwarding, that enable workgroups to
connect to the backbone locally.
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