AT&T 5140T User Manual page 16

Introduction
Overview
The AT&T secure
Mdeo
Terminal Docking Unit
(WDU),
in
conjunction
with
a Seqrre Voie/Data
Terminal
(SV/DT), provides
a low-cost way to transmit
video
images
electronically, including
full-motion,
real-time
images and
stifl images between
two
sites.
Model 5140T
features
a
4-inch
display;
Model
51607
leatures a
Sincfi display.
These modeis are TEMPEST
and rneet
govemment
requirements
for dassified
communications. All
references in
this manual
apply
to
both models,
unless
othemise
noted.
The
WDU
is a
member of
the AT&T
secure
communication
producB family.
lts
features indude:
.
Oneomone
conferences
.
Shatp video
images
with simultaneous
voice
.
Compact
tooprint
.
Compalibility
wtth
a
range
ol
SV/DTs
.
Dasplay
shutotl atter period of
inactivity
(screen saver)
.
Still
irnage
tansmittals in
less
than
15
seoonds (time varies with
resolution)
.
Variable
stillimage
resolution
.
HanGlree
speakerphone operation
.
lnpuUOutput to extemal video attacfirnents
(i.e., camcorders,
scanners,
printerc,
computers).
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