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So Many Computers – Too Few Taps
With the approval of the 1998 Bond almost every classroom in the
district was provided with access to the district’s local area
network as well as the World Wide Web. This access came in the form
of network taps, or those "phone jack" looking plates that are
located throughout the classrooms a couple of feet off the
floor. These network taps are connected to a Main Distribution Frame
(MDF) that is located in the school, usually in the library area.
Schools were given a set number of taps per classroom. At the time
of installation this number pretty well took care of classroom
needs. How quickly things have changed! With the increased technical
knowledge of our teachers and the award of several grants (TLP, Math
Grant, etc.) the number of computers has exceeded the number of taps
in the classroom in many incidences. What does a teacher do when
they have 12 computers in the room, a phone that also needs a
network tap and a networked printer? Fourteen networked devices and
only 8 taps!
There are two choices. One
is to purchase a desktop unmanaged switch or "mini-hub". This
inexpensive piece of equipment plugs into one network tap then
"splits" the network access between the computers. In some cases
this can be done with no problem BUT there can be trouble if the
addition of the hub is done improperly. These problems include the
hazard of network cables connecting multiple computers; computers
having to be placed too close together in order to access the hub;
the degradation of the network performance in the classroom or even
bringing to a standstill all network access at the site. The
addition of a hub should not be done without the
approval and help of the ITSC.
The second option
is the installation of additional network taps. Of course the cost
is greater than the addition of a hub - but the results are much
more positive. Not only is there no effect on the network as all the
necessary equipment is added to the classroom as well as the MDF,
but the taps can be placed so that all computers can be easily and
safely accessed. The ITSC and district electricians
can help you determine the cost for additional taps. A Wiring/Data
request can be found online at
www.spokaneschools.org/itsc/forms/wiring.stm.
Simply fill out the request and send to Betsy at the ITSC. The ITSC
will take it from there! After researching the request you will
receive an estimate of the cost. No work will be done without the
approval of the site administrator.
We can expect the
quantity of network devices in our district to continue to grow. If
you are planning to add additional computers or printers to your
classroom, consider your wiring needs well in advance of your
purchase. Preplanning will prevent problems when installation time
comes around! As always, call the Help Desk at 354-7600 if you have
questions.
– Betsy Ressa
From Volume 9, Issue 5
April/May 2003
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