Specifications
Installation
i.
IMI 66-031
.+'
4
2
%?Etews
e!+w
IaLii
can be programmed to be a PA station port
;
e ephone station port (see Chapter 4 for programming
details).
When this is done,
the audio input of a PA amplifier can be
connected to the audio pair of the station port as illustrated in
Figure 3.
The connection must be isolated with a 600 ohm to 600 ohm
audio matching transformer.
Terminate the audio input of the PA
amplifier with a 620 ohm (nominal value) resistor.
@-=JQa;M&~~~a~*
the Common Audible contact
Points are automatica y recon lgure as PA enable terminals. The
relay
contact
closure on these terminals occurs
when PA station 23
is dialed.
The normal common audible function, as discussed
'!F
previously,
is disabled as long as station 23 is a PA station.
l
&$ &&&J a & m e a a u~ga
the
Auxiliary Station
Interface (station 17 audible) contact points are automatically
reconfigured as PA enable terminals.
The relay contact closure on
these terminals occurs when PA station 25 is dialed.
The normal
auxiliary station interface,
as
discussed previously, is disabled-as
long as station 25 is a PA station.
A line port can be configured by class-of service programming to be -an
,-
AUXILIARY port. As an AUXILIARY port,
it can be used to couple a.
'\
statlon voice path to an external device.
This is done from any
allowed station
by
pressing the proper line select key to select the
AUXILIARY port.
DTMF tones or dial pulses can be sent through the
auxiliary port as needed.
If direct access area paging is to be part of the system, connect the'
audio input of a paging amplifier to the KSU line jack programmed to
be an AUXILIARY port.
The input impedance of this port is
a proximately
R
600 ohms.
The connection must be isolated with a 600
o m to 600 ohm audio matching transformer.
Terminate the audio input
of the paging amplifier with a 620 ohm (nominal value) resistor. A
tone select, zone-paging amplifier can be employed if desired. If
used,
the zone-select code must be dialed after the AUXILIARY port
line select key is pressed.
If music on hold is to be part of the system,
connect a KX registered
music source to the KSU input jack (phono jack) provided for this
purpose.
The impedance of this input is approximately 500 ohms.
Level adjustment of the music source may
be
necessary.
done during system checkout.
This may be
e
:;-
.'
24