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Introduction
IMI
66-037
yo+e,l, Variations
-------I--
The Model
616 key
system
unit
has been produced
in
two versions.
The currently
produced
version
is
designated
as 616B KSU.
It
is
an enhanced
unit
which
provides
standard
key
system
features,
adds
station
pin
upward
compatibility
for
growth,
and includes
advanced
operating
features
such
as expanded
toll
restriction
and
class
of
service
printout
data.
The earlier
produced
version
is
designated
as 616 KSU and is
currently
available
only
as a
service
replacement.
Specifically,
the
616B provides
the
following
operation
enhancements:
serial
data
printer
port
for
class
of
service
printout;
all-call
and zone paging
through
all
system
stations;
three
intercom
links;
and programmable
toll
restriction
tables.
KSU Descriptipn
---
------
----
The KSU is
a fully
electronic
key
service
unit.
It
is
essentially
a special
purpose
computer
system
acting
as a
communications
controller
between
TELCO or PABX supplied
lines
and proprietary
3-line
and 8-line
telephone
stations.
The KSU is
contained
in a functional,
modern-style
metal
housing
of contemporary
design
in keeping
with
the
needs
of
the
modern
office
enviroment.
It
is
engineered
to be wall
or
rack
mounted.
Telephone
Set
Descriptiqn
-'---
w---
m--
---m-m
s-s-
The telephone
set
is
an electronic,
microprocessor-controlled
device:
It
is designed
to
allow
not
only
multiline
pickup
but
also
single
button
access
to
features
available
from
the
serving
TELCO or PABX switch.
All
stations
are
equipped
with
standard
modular
jacks.
The telephone
sets
are
available
in
3-line
(s-button)
and 8-line
(lo-button)
handsfree
dialing
models;
3-line
and 8-line
full
speakerphone
models:
and an 8-line,
handsfree
model
with
a busy
lamp
field.
KEY SYSTEM FEATJJRES
The
electronic
key
telephone
system
provides
a broad
range
of
features.
Some of
the
features
are
a permanent
part
of
the
system
while
others
are programmable
as part
of
the
system
or
station
programming
procedure.
The following
paragraphs
describe
the
features.
Access
Denied
(Private
Lines)
-------
--MN'--
----ova--.-
---we-
Access
to particular
lines
can be denied
to certain
stations
in
the
system
through
system
programming.
This
access
denied
feature
is
programmable
on a per
line/per
station
basis.
2
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