Clear-Com MS-222 User Manual

DESCRIPTION
I Clear-Com
MS-222
2-Channel
Main
Station
Call
Sianalmna
Visual
"Call"
Signaling
attracts
the
attention
of
people
who
have
removed
their
headsets
or
turned
off
their
speakers.
The
MS-222
front
panel
provides
a
"Call"
button
for
each
channel.
Pressing
the
desired
channel
button
turns
on
the
"Call"
lights
at
all stations
on
that
channel.
The
"Call"
is active
regardless
of
talk
status.
When
a
remote
station
sends
a
Call
signal,
the
lamp
in
the
'Talk"
button
associated
with
that
station's
channel
lights
brightly,
whether
or not
the
channel
is selected.
Proaram
Input
The
MS-222
accepts
a balanced,
mic-level
or
line-level
program
input
which
can
be
monitored
in
the
headset
or
speaker.
Program
volume
for
the
operator's
listening
is
adjustable
with
the
"Program
Monitor
knob
on
the
front
panel.
The
external
program
is also
assignable
and
adjustable
in
level
to
either
or both
channels,
and
mixes
with
the
intercom
signal.
The
program
feed
can
be
set
to
be
interrupted
by
the
"TALK"
for
a
particular
channel.
LINKinh
Channen
Tbaethe
A front
panel
switch
is
provided
that
allows
the
operator
to
instantly
conned
channel
A
and
channel
B together
for
a
combined
intercom
system
consisting
of
both
channels.
Remote
Mi-K*ll
Funtion
The
MS-222
provides
the
ability
to
turn
off
any
open-mics
on
Series
500
belt-pack
remote
stations.
Momentarily
pressing
the
Channel
A RMK
button
will
remove
the
DC
power
from
both
channels,
clearing
the
'talk'
function
of
all
the
belt-packs.
Power
Sunnlv
Protection
The
MS-222
power
supply
is regulated,
current-limited,
and
provides
30
volts
DC
at
1
A
from
a
11
5V
or 230V
(selectable)
AC
mains
supply.
The)
MS-222
has
an
automatic
short-circuit
sensor
to protect
the
system
from
miswired
cable
or
shorts
in the
lines
or
general
current
overload.
If a
short
occurs,
the
red
LED
on
the
front
panel
marked
"Short"
illuminates.
Removing
the
short,
will
cause
the
power-supply
to reset
itself
automatically
within
5
seconds.
System
Termination
The
MS-222
provides
individually
selectable
audio
termination
networks
for
both
channels
A
and
B.
Easy
Interconnection
The
MS-222
provides
three
3-pin,
male
XLR
outputs
for
Channel
A (connectors
are
wired
in
parallel)
and
three
for
Channel
B.
Intercom
signals
are
fed
from
the
MS-222
with
standard
mic
cable
(see
next
section).
Eay
System
Expansion
The
MS-222
can
be
ganged
together
with
other
MS-222's
or
other
Clear-Com
power-
supplies
for
multiple
two-channel
systems
and
back-up
power
support.
05/92
Rev.
1.1
Page
7

Clear-Com MS-222 Specifications

General

Brand	Clear-Com
Model	MS-222
Category	Intercom System
Language	English