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Basic Ethernet
considerations
Ethernet hubs, cables, and NICS can be purchased at most computer supply
stores or outlets. They are relatively inexpensive and easy to install. The
Ethernet interface must support auto-negotiate, a feature that enables
compatibility and inter-operability among Ethernet devices.
Select an Ethernet hub based on how many computers or other devices you will
connect to the network, and how fast you need the data connection to be. (In
network terminology, each computer connected to the network is called a host.)
You may decide that an older 10Mbps Ethernet connection will meet your
needs. However, if the users on your network will share large files or play
computer games, you may wish to install a 100Mbps Ethernet hub. Some hubs
enable the network to use both speeds.
Cat5 (Category 5) Ethernet cable is the minimum recommended and supports
Fast Ethernet (100Mbps). If you think that the network or devices on the
network may use the recently developed Gigabit Ethernet (1Gbps) in the future,
you may want to consider installing Cat5e Ethernet cable now.
When you install the cable, either run it inside your walls or secure it to floor
baseboards and doorway frames. Never use staples to secure Ethernet cable.
Always leave some slack in the cable in case you have to repair it, which usually
involves cutting away a damaged section.
Remember that prepared Ethernet cable--cable that already has RJ-45 jacks
installed at the ends--are usually available in lengths of no more than 50 feet. If
the cable run will be longer than 50 feet, you can use a kit to install the RG-45
jacks at both ends of the cable. (This is called terminating the cable.) The kits
are available at some electronic supply or home supply stores. If you do not feel
comfortable installing Ethernet cable yourself, contact a professional installer.
Figure 57: Site with DW6000 and Ethernet LAN installed
Inroute
(to NOC)
Outroute
(from NOC)
Antenna
DIRECWAY
Network
Operations
Center (NOC)
Satellite
DW6000
PC
Mac
Ethernet
hub
Internet
G-25787 F
08/05/03