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Magnum DS80F & DS80C Dual-speed Stackable Hubs Installation and User Guide (12/01)
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2.6 Applications
The DS80F & DS80C are designed to bring future-proof fiber connectivity and highly
used copper connectivity to small user groups in offices, classrooms and labs.
Example 1. Magnum DS80F In this example, a Magnum DS80F Personal Hub serves a small
office with multi-server and mixed-speed requirements. Some users operate at 100Mbps, and
some users and utility devices (such as print servers) run at 10Mbps. High performance users
need a high bandwidth backbone for access to a central LAN and central file servers. A
Magnum DS80F Personal Hub serves this requirement economically. The two 1SW and 2SW
full-duplex switched ports capability makes the required setup simple. Any attached node can
change speed at any time without affecting network operation or impacting other users.
Figure 2.6.1: A DS80F connects combinations of 10Mbps and100Mbps network devices and
provides a Fast Ethernet fiber backbone for access to the central LAN.
Where there is existing 10Mbps hubs and users, they can easily be cascaded into any
port of the DS80F. This allows a simple plug-and-play addition of 100Mbps ports to an existing
10Mbps network without having to change it. Nodes that are capable of 100Mbps speed can be
moved to a DS80F dual-speed port, and will automatically operate at the higher speed.
The 1SW full duplex 100Mbps switched port can support a local server for Fast
Ethernet users. The 100Mb fiber port on the DS80F can be used for accommodating high
performance data transfers, and provides fiber connectivity built-in rather than needing an
auxiliary media converter unit. The 100Mbps traffic does not use the bandwidth of the 10Mbps
domain, so overall performance of the network is sustained at the highest possible level.
Tx Rx
UPLINK
F
H
= X
2SW
UPLINK
3 4 5 6 7 8
1SW
Magnum DS80 Dual Speed
Personal Hub
PORTS 1SW 2SW 3 4 5 6 7 8
Speed
Link/Act
F/H
Power
Error
GARRET
T
12V, 1.5Amps
Print Server
Users
Server
100
100
100
100
10
100
1 2 3 4 5 6 7 8
10 Mbps Workgroups
100Mbps
fiber