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InJ?nite
4096
Hybrid
Key Telephone
System
GENERAL
DESCRIPTION
The Power Supply
Units Ipsl. Ring Gener-
ator Unit
(RG) and the Battery
Charging
Unit (BC) all incorporate
modular
connec-
tors
that
interface
on the EPS mother-
board
allowing
easy
installation
and
removaI
of these units.
D.
Power
Supply
Unit
(I'!31
This
unit
converts
117V
ac to 24 volt
power required
for system operation.
One
power supply
is required
for the Basic
KSU
and an additional
power supply is required
for the Expansion
KSU.
Both units plug
into the External
Power Supply
Housing
EW.
E.
DC/DC
Converter
(DC/DC)
Thts is a modular
unit
that converts
the
24V dc power
into !5V dc and 14V de. the
system
operating
voltages.
The unit also
provides
LED
voltage
indicators,
test
points
and
ad]ustments,
as well as an
input jack (RCA type) for Background
Mu-
Sk.
F.
central
Processor
Board
(CPB)
This board
provides
the system's main
16
bit microprocessor
and operating
memory.
It controls
all system
activity
including
switching
functions
and feature operattoxi
This
board
houses
the
Programmable
Read
Only Memory
(PROM) with generic
operating
instructions,
and Random
Ac-
cess Memory
(RAW
for customer
data
base programming.
A
lithium
battery
is
included
for protectlon
of the RAM mem-
ory. An RS-232C
connector
for data base
printout
and SMDR is included.
Feature
Package somare
is installed
on this board
at the factory
(See FP description
below).
One ( 11 CPB is required
per system.
G.
Featun
Package
Software
'l%e Feature
Package installed
on the CPB
provides
the generic
operation
and feature
set available
to the system.
This Feature
Package
includes
software
to support
such features
as Least Cost Routing
&CR),
Uniform
Call
Distribution
(UCD),
Hunt
Groups,
Direct
Inward
System
Access
@I!%%*,
Voice
Mail
In-band
integration
and
Remote
Administration*.
This one
Feature
Package will support
a maxfmum
configuration
of 40' CO lines and 96' sta-
UOILS.
P Additional
hardware
may be required.)
200.3
FoFtTcxR.Ds
A.
B.
C.
D.
Central
Oface
Interface
Board
(COB)
Provides
the interface
for eight central
of-
fke DTMF
or
Dial Pulse) loop start lines.
The board can be removed
or inserted
with
KSU
power
ON,
however,
the
'Nor-
mal/Service'
switch
should
be in the
'Sexvice' mode before removing
or insea-
ing the board
into the system.
An in-use
LED for each circuit
and a switch
to take
the board out of setice
are provided.
The CO circuiti
are equipped
with
pro-
grammable
current
sensing
circuitry
that
identifies
distant
end disconnect
loop su-
pervIsion,
if provided
by the Central
Of&e.
AmpliI3ed
Central
Office
Ynterface
Board
(cm
The
Amplified
Central
Office
Interface
Board
(COAI is an
opUonai
card that in-
stalls in place of any standard
COB board.
The COA enhances
audio levels and con-
tains all other attributes
of the COB.
The
COA is recommended
for DISA and
multi-
line conference
applications
and
should
not be used in the System behind
a PBX
because
of possible
feedback
When Ani-
plified CO operation
is desired,
it is recom-
mended
that &CO
ctrcuits
in the system
be equipped
on COA Boards.
Key Station
Interface
Board
(XIB)
Provides
interface
circuit.~~ for eight Key
Telephones.
The KIB will support
any In-
jnfte
Enhanced
or Executive
Key Tele-
phone
set. 'Ihe KXB board can be inserted
or removed
with the KSU power ON, how-
ever, the 'Nom&/Service"
switch
should
be in the 'SeIvice"
mode before removing
or insexting
the board into the system.
An
in-use
LED and a switch
to take the card
out of service are provided.
A DSS/DIS
or
Phone Box can also be assigned
to any one
of the cfrcuits.
The KIB circuits
are pro-
tected from mis-wiring
and overcurrent.
Key Station
Interface
Board with
Off-
Hook Voice AMounce
(glB/OHVl
The Key Statton
Interface
Board with Off-
Hook Voice Announce
(KIB/OHVJ
provides
interface
circuitry
for eight Electronic
Key
Telephones
(Enhanced
or Executive).
in-
cluding
the capability
for 081 Hook Voice
Announce
(requires
an OHVA
equipped
Key
telephone
with
a six conductor
cord).This
board
can be inserted
or re-
Issue
1, January
1992
200-3
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