UFC 4-021-02NF
27 September 2006
change 1, 23 October 2006
Table 6-2. DTM Technologies for ESS
Hardwired
Leased T-1
Wireless
Free Space
Lines
Optics
May make sense,
Recommended
Does not make
Generally
Suitability
can be used when
application.
sense when base
requires line of
On Base
there is line of
level information
sight.
sight.
infrastructure can
be used.
A workable
Rarely
Recommended
May make sense.
Suitability
application
application. Can
achievable,
Inter Base
because of
cross property
lines.
property line
Dependent on
Low, which is
Construction
Reduced initial
Initial Cost
distance.
good. Must
costs of towers
cost because
Principle cost is
provide interface
and tie-ins has to
conductors are not
per linear foot of
to site's
be computed.
used. Need
trenching/
demarcation
transmit/receive
conductors.
point for supplier.
equipment.
Low, which is
One T-1 line at
Relatively low,
Low if DoD
Recurring
good. Minimal
1.544 Mbps can
which is good if
equipment.
Cost
maintenance
be estimated at
DoD-owned.
Leased equipment
cost of installed
0/month.
Otherwise obtain
requires vendor
conductors.
Obtain vendor
vendor quote.
quote.
quote.
Best
As good as
Generally
Requires line of
Consideration
technology. Not
"hardwired." Not
requires line-of-
sight or mirrors.
s
affected by line
affected by line
sight. Approved
of sight.
of sight.
frequencies must
be used.
Not
Signals can be
Second or third
Very good,
Security
recommended by
blocked. Hard to
best choice.
especially if
CIA studies, but
transmit forged
Usually
totally contained
may make sense
signals.
dedicated
on DoD
on DoD property
conductors are
property.
if there is little
used from one
chance of
provider.
interception.
Not as bad as
Rain, dust, snow,
Not affected.
Not affected. As
Weather
free space
fog, or smog can
Best technology
good as
Effects
optics, but can
block
from weather
"hardwired."
be affected by
transmission,
consideration.
heavy rain and
shutdown
snow.
network.
106
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