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Infinite
4096
Hybrid
Key Telephone
System
INSTALIATION
l
1 SIB board (installed
in KSu)(supports
8 SLTs)
e 1 RG unit (installed
into EPS Housing)
0 1 APL board
(installed
in Basic KSUJ
The SIB is color coded with green ejector tabs
and is plugged
into any designated
K.IB card
slot.
Each
SIB board
supports
eight
tele-
phones
(standard
DTMF
Single
Line
Tele-
phones
and
message
waiting
DTMF
SLTs).
The Ring Generator
Unit IRG) must be installed
into the External
Power Supply Housing
(EPS)
to provide
power for ringing
and message wait-
ing for SIB's. Refer to Figure
500-4. When the
number
of SIB's installed
exceeds
the traf3c
handling
of the two DTMF receivers.
the SLU
module
should
be installed.
The Single Line
Telephone
DTMFRS
(Receiver/Sender)
Unit
(SLUJ Installs
on the Application
Board (APL)
and provides
four
additional
DTMF
receivers
and
one additfonal
DTMF
sender
to support
Single Line Telephones.
Each SLT requires
one-pair
cable.
The cable
should
be placed
from the telephone
location
to the
MDF
in a 'home
run"
manner.
The
telephone
end of the cable run should
be ter-
minated
in a modular
jack.
Refer to Figure
500-13.
The MDF
end should
be 'punched
down"
on a terminal
block for cross connection
to the appropriate
station
cable. Refer to Table
500-5.
500.18
OFF-PmSE
EXTENSION
IN-
STALLATION
(OPX)
The OPX board
can be installed
in all but the
fh-st KIE3 card slot of the System.
It can be
inserted
and removed
with power on using the
'Normal/Service"
switch
on its top front edge.
It also has an adjustable
control
directly above
the 'Normal/Service"
witch.
This control
is
set at the factory
for proper operation:
DO NOT
make
adjustment
to this control.
One (1) Single Line Ring Generator
and
M/W
Power Supply
Unit (RG) and one (1) Application
Board
(APL) are necessary
to support
the OPX
card.
An additional
Single Line DTMFRS Unit
(SLUI
may
also be needed
if the combined
tnfik
of OPX, SLT, and DISA calls affects the
availability
of receiver circuits.
A 50-pin
amphenol
type female
connector
is
provided
on the front
edge of the OPX. This
allows the OPX System extensions
to be cabled
to the
Main
Distribution
Frame
(MDF).
Twenty-five
pair cabling must be prepared
wtth
a male connector
to extend
the OPX extension
to the
MDF.
The
cable
should
be routed
through
the bottom
cable access area of the
KSU or Expansion
cahfnet.
The cable(s) then
should
be terminated
on industry
standard
66Ml-50
punch-down
connector
blockls).
Af-
ter the amphenol
type
cable
connector
has
been attached,
the cable should
be secured to
a cable clamp
at the bottom
of the KSU or
Expansion
cabinet
Connection
from the OPX punch-down
block
to an FCC approved
IU21X
connector
can be
done by cross-connect
wiring.
Refer to Table
500-7 for pair identification
for each of the OPX
circuits.
Each OPX port requLres
an OL13C
network
circuit
An FCC registered
interface,
such as
RJ21X
is required
to connect
to the public
network.
Only SLT devices capable
of sending
tme
DTMF
can be used
on an OPX circuit
provided
by the system.
When
an OPX board
is installed,
four
station
ports
are rendered
unusable,
reducing
the maximum
number
of
staffon
in the system
by four.
For example,
with
an OPX board
inserted
into the second
KIB card slot extensions
108 through
111 sup-
port OPX circuits
(extensions
112 through
115
are not usable).
Table 600-7
OPX Station
Connecting
Block
(OPX)
PAIR
PIN
COLOR
DESIG
DESCRP
1
26
WH/BL
Tl
1
BL/WH
Rl
2
27
WH/OR
UNUSED
2
OR/WH
UNUSED
3
28
WH/GN
UNUSED
3
GN/WH
UNUSED
4
29
WH/BN
T2
4
BN/W-H
I?2
5
30
WH/SL
UNUSED
5
SL/WH
UNUSED
6
31
RD/BL
UNUSED
;
6
BL/RD
UNUSED
x
7
32
RD/OR
T3
7
OR/RD
R3
8
33
RD/GN
UNUSED
8
GN/RD
UNUSED
9
34
RD/BN
UNUSED
9
BN/RD
UNUSED
10
35
RD/SL
T4
a 10 , SL/RD
R4
KJR3: PAIRS 11 THROUGH
25 UNUSED
Issue
1. January
1992
600-21
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