Clear-Com PS-10 User Manual

i an
I. The Clear-Com
Concept
Clear-Com
is a closed-circuit
in-
amplifier
(for
headset
or speaker),
tercom system
that
provides
highly
and
signalling
circuitry.
intelligible,
two-way communications
ability
in high-
and low-noise
en-
Clear-Com
intercoms
feature
"Auto-
vironments.
A basic
system
con-
matic
Headset
Detection;"
this
sists
of
a Power
Supply
or Main
shuts
off
any station's
mic preamp-
Station
connected
to various
Remote
lifier
when the
mic or headset
is
Headset
or Speaker
Stations.
disconnected-
Therefore
an
unused,
on-line
mic never
adds
background
Clear-Com
manufactures
a
wide range
noise to
the line.
Low-impedance
of portable,
rackmount,
and
custom-
mic
input
lines (200
ohms)
make
mount
intercom
stations.
All are
Clear-Com
channels
virtually
immune
compatible
and will
interface
with
to
RF and
dimmer
noise.
Remote
a
variety
of other
communications
Stations
bridge
the intercom
line
systems.
at a very
high impedance
and
place
a
minimum
load on
the line.
Audio
Most Clear-Com
intercoms
intercon-
level remains
constant,
and
never
nect
with two-conductor
shielded
fluctuates
when
stations
leave or
microphone
cable
that
is input
to
join the
system.
the stations
with
3-pin, XLR
audio
connectors.
One wire
in the
cable
The 28-32
volts
DC provided
by
the
carries
DC power
(28-32 volts)
from
Power
Supply
or Main
Station
enable
the
Power Supply
or Main
Station
to
the Remote
Stations
to operate
with
the Remote
Stations,
and the
other
minimal
current
(headset
stations,
wire carries
the audio
signal.
The
10
ma quiescent;
speaker
stations,
shield
acts
as common
ground.
Only
20
ma quiescent)
while
generating
one termination
is needed
through-
loud
listen
levels
(greater
than
out
the intercom
system,
and that's
110 dB
SPL).
The higher
voltage
accomplished
by
one of the
Power
and
low current
keep
voltage
losses
Supplies
or
Main
Stations
with-
to
an absolute
minimum
in long
in the
system.
lines.
If
the voltage
drops
due to
the
addition of
extensive
cabling
Clear-Com
is a distributed
ampli-
or
many more
stations,
Clear-Com
fier
system,
which
means each
Main
equipment
will
continue
operating
Station
and Remote
Station
contains
normally
with
less than
12 volts
its
own mic
preamplifier
power
available.
II. INTRODUCTION
TO THE
PS-10 POWER
SUPPLY
The PS-10
is a single-channel
power
for
the entire
system;
its
rear
supply
available
as a
portable
(PS-
panel
provides
a termination
on/off
10)
or a 3-1/2"
rack-mount
unit
switch.
(PS-10K).
Designed
to
operate with
all
Clear-Com
single-channel
Remote
The PS-10
features
a circuit
break-
Stations,
the PS-10
is especially
er
that protects
the
power
supply
suited
for use with
smaller
inter-
from
damage
caused
by faulty
or
con systems.
It supplies
the power
shorted
cable.
If a short
occurs
(28
volts
DC at 0.6
amps) to
sup-
the
circuit
breaker on
the PS-10
port
a maximum
of 15
headset
sta-
front
panel will
pop out,
and the
tions
or 5 speaker
stations.
red LED
labelled
"short"
will glow.
Once the
short is removed,
pressing
The
PS-10 terminates
the audio
line
the
circuit-breaker
button
automa-

Clear-Com PS-10 Specifications

General

Brand	Clear-Com
Model	PS-10
Category	Power Supply
Language	English