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INSTALLATION
Infinite 8 I6 Key Telephone System
g. The telephone
can now be mounted
to the
wall by matching
the two keyhole
slots on
the baseplate
with the lugs on the modu-
lar cover assembly.
Check to make
sure
that the modular
connector
on the base-
plate has a firm connection
with the wall
jack-
500.9
PHONE
BOX INS'I'ALL&TION
The Irt$n&
816 Phone Box can make calls to
preassigned
statfons
as well as receive inter-
com
calls.
The
unit
should
be located
in
weather
protected
areas where paging or monf-
torlng
is required.
The Phone Box consists
of
a
top housing
and
bottom
mounting
plate.
The top housing
has
a speaker,
mlcrophone,
wire
term&&s
and
electronic
ctrcuitxy.
The housings
are sepa-
rated by inserting
a thin, flat-edged
tool at the
bottom
rim of the assembly.
By pressing
in-
ward on the recessed retaining
tab, the assem-
bly wilI open.
The
connection
of the Phone
Box(es)
to the
KSU is identical
to that of the Key Telephone.
Refer to the Key Telephone
Installation
para-
graph.
The bottom
plate of the Phone Box assembly
is fastened
to the wall by mounting
with no. 8
or larger pan-head
screws.
The cable
is routed
through
the cable-entry
holes provided
on the
bottom
plate
and is connected
to the screw
terminal
strip
on the upper
housing.
Four
screw tenntnals
are identified
by wire
color on
the silk-screened
printed
circuit
board to
cor-
respond
with
the
wiring
sequence
at the
punchdown
connector
at the Main
Distribu-
tion Frame
(MDF).
The
slack
wiring
should
be pulled
back
through
the bottom
mounting
plate
and the
top housing
snapped
shut.
Refer to Section
7 10.1,
Station
Class of Service
to program
Phone Boxes.
500.10
EXTERNAL BKTSIC SOURCE
Music-On-Hold,
as well as Background Music,.
can be connected
using a customer
provided
music
source.
Separate
Music-On-Hold
(MOH) and Background
Music
(BGM) volume
adjustments
are provided
on the KSU.
Background
Music
levels are also adjustable
at each Key Telephone
set.
Connections
are
made
on the J-l
connector,
the MOH
pair.
Refer to Table 500-2.
500.11
ALARMINSTALLATION
An alarm
signal
can be transmitted
to each
station
(except
Phone
Boxes) in the
system.
When
activated
by an external
alarm
system,
a continuous
tone is transmitted
to the station
speakers.
Leads from the external
alarm
are
connected
to the J-l
terminals,
ALMT
and
ALMR. Refer to Table 500-2.
Also refer to Sec-
tion 7 10.1 for programming
alarm
states.
Af-
ter the alaxm has sounded,
the system
must
be reset by first clearing
the alarm
condition
on the external
system and then at any station
by dfallng
121.
500.12
EXTERNAL PAGING
An amplifier
for external
paging
may be con-
nected
to the In#rtf&
8 16 Key Telephone
Sys-
tem.
Any telephone
in the system
can access
this paging
equipment
by using
a dial code.
There
is one External
Paging
Zone
(without
amplifier)
provided
in the 8 16 System.
Paging
can be two-way.
The output
impedance
of the paging
zone is
600 Ohms at 0 clBm. The low-level voice signal
output
is specified
at 5 mil.Iiwatts.
Dry contact
control
is provided
to switch
on the external
amplifier
equipment
or to momentarily
remove
Background
Music,
if externally
supplied
to
the paging
device.
All connections
are made
on the J-l
punch-
down
connector.
Refer to Table
500-2.
The
voice output
from the Key Telephone
System
is provided
on the EPVT and EPVR pair.
The
make"
contacts
are identified
as pair EPCTL.
500.13
LOUD BELL CONTROL
The IQ'%&
8 16 System provides
relay contact
closure
for
activation
of external
signaling
equipment
during
incoming
CO line ringing.
The Loud Bell Control
is selected
by program-
ming in the customer
database.
Either or both of the Loud Bell Control
circuits
may be assigned
to a station.
The Loud
Bell
Control
dxy contacts
will follow
the
ringing
condition
of that
station. Locate the LBClT
and LBC 1R terminals
on the connecting
block.
Two wires
are connected
to these
tenninalS
and
routed
to customer
provided
signaling
equipment
(Refer to Figure 500-5).
All incoming
CO lines assigned
to ring for the
programmed
Loud
Bell Control
station
will
activate
the Loud
Bell Control,
causing
the
LBC contacts
to sequence
in a 1 second ON/3
seconds
OFF rate
until
all lines
have
been
answered
by Key Telephone
users.
The LBC
contacts
are current-rated
at 1 ampere/24V
dc.
500.14
EMERGENCY TRANSFER
In the event of a commercial
AC power
inter-
500-10
Issue 1. January 1992
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