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RS-100A
Instruction And Service Manual
6 pgs
179.78 Kb
0
Instruction And Service Manual
17 pgs
8.58 Mb
0
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Clear-Com RS-100A Instruction And Service Manual
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Clear-Com Instruction And Service Manual
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Page 1
RS-
00A
Belt-pack
Station
INSTRUCTION
and
SERVICE
MANUAL
C)
lear-Come
Intercom
systems
0
1111 1 7th
Street
*
San
Francisco,
California
94107
*
415-861-6666
100A/12-82
ORI
Page 2
CLEAR-COM
MODEL
RS-100A
REMOTE
BELT-PACK
STATION
OPERATING
AND
SERVICE
INFORMATION
I.
INTRODUCTION
TO
THE
BELT-PACK
STATION
The
Clear-Com
RS-100A
is a portable
pedance,
as
many
as
100
units
may
remote
intercom
station,
housed
in
be
connected
in
one system,
over
a
16-gauge,
stainless-steel
case
distances
of
up to
one
mile.
that
provides strength
and
durabil-
ity.
The
unit
attaches
to
your
A
Visual Call
Signal
is
standard
belt
with
a
sturdy
stainless-steel
on
Clear-Com
equipment,
and
allows
clip.
the
user
to
visually attract
the
attention
of
operators who
have
The
RS-100A
contains
a
headset
removed
their
headsets,
amplifier
that
provides sufficient
output
to
drive
one
Clear-Com
head-
The
RS-100A
also
provides
a
unique
set
to a level
greater
than
110 dB
sidetone
adjustment,
which
allows
SPL
with
no
distortion.
It
can
the
user
to
vary
the
level
of
drive
two
headsets
if
connected
his/her
voice
as
heard
in
his/her
with a suitable
"I"-cord.
headset.
This control
need
only
be
set
once,
even
if
other
Stations
Because
of the
Station
s
low
subsequently
join
or
leave
the
current
draw
and
high
bridging
im-
intercom
network.
II.
INSTALLATION
OF
THE
BELT-PACK
Interconnect
Cable
handset) should
have
the
following
Use
standard
2-conductor microphone
characteristics--
cable
to
interconnect
Stations.
Microphone
type:
dynamic
Unshielded
cable
may
be
used
where
Impedance:
150-250
ohms
AC
interference
is
not
a
problem.
Output
Levrl:
-55
dB
We
recommend
rubber-insulated
and
Headphone
Type:
dynamic
jacketed
cable,
such
as:
Output
Impedance:
300-2000
ohms
Belden
8413
or
equivalent
(24
ga.,
The
headset
connector
pin-out
is:
stranded
conductors)
for
lines
running
up to
500
feet
in
length;
Pin
1:
mic
common
Pin
2:
mic hot
Belden
8412
or
equivalent
(20 ga.,
Pin
3:
headphone
common
stranded
conductors)
for
lines
Pin
4:
headphone
hot
running
500-5000
feet
in
length;
NOTE:
Do
NOT
connect
headphone
Belden
8428
or
equivalent
(18
ga.,
ground
and
mic
ground together
at
low-capacity)
for
lines
greater
any
point.
than 5000
feet
in
length.
Connections
Headsets
Bring
mic
cable
from
the
Main
Headset
connectors
in
Clear-Com
Station
or
Power
Supply
and plug
equipment
are
XLR-type,
4-pin
male
into
D3E
connector
labelled
"input"
connectors.
on
belt-pack.
The
pin-out
is:
Pin
1:
Common
To
insure
proper
level
and
Pin
2:
+28
volts
performance,
the
headset
(or
Pin
3:
Audio
Page 3
The
D3M
connector
labelled
"exten-
In
locations
where sending
DC
power
sion"
provides
an
internal
loop-
is
not
convenient,
the
RS-100A
can
through,
allowing
you
to
daisy-
be
operated
at
12
volts
using
a
chain
additional
Stations
along
one
portable
battery
pack
and
termina-
stretch
of
cable.
ting
network,
such
as
Clear-Com
s
Model
BP-10
Battery
Pack.
NOTE
To
prevent
shock
hazard,
ground
loops,
and
noises,
NEVER
After
completing
all
connections,
connect
Pin
1
(common)
directly
to
plug
in
the
headset
and
turn
up
the
the
station
chassis.
In
addition,
volume
The
Station
is
now
ready
to
never
connect
Pin
1
to
the
shell
of
operate.
the
mic
cable.
III.
OPERATING
CONTROLS
The
switch
labelled
Off/Mic/Call
on the side
of
the
belt-pack,
and
turns
the
headset
mic
ON
and
OFF,
is
used
to
vary
the
amount
of
your
and
activates
the
Call
signal
for
voice
as
hear-1
in
the
headset.
It
all
Stations
on
the
same
channel.
does
not
affect
the
level
of
inco-
Momentarily
press
this
switch
to
ming
or
outgoing
signals,
and
is
the
"Call"
position
to
signal
other
set
at
the
factory
to
be
approxi-
stations.
Their
Call
lights
will
mately
6
dB
lower
than
incoming
stay
on
for
as
long
as
the
switch
signals.
To
re-set
it,
locate
the
is
depressed.
When
the
switch
is
unmarked
hole
(which
contains
a
released,
it
automatically
returns
trimpot).
Plug
in
your
headset,
to
the
mic-on
position.
insert
a
small-bladed
screwdriver
through
the
hole, and
engage
the
The
Call Light
lights
up
to
attract
slot
on
the
trimpot.
Turn
up
the
your attention
when another
Sta-
headset
volume
all
the
way,
and
tion
(connected
to
the same
chan-
start
talking
to
yourself
while
nel)
activates
the
Call
signal.
slowly
turning
the
screwdriver.
A
null
point
will
be
found
where
you
The
Headset
Volume
knob
adjusts
the
can
barely
hear
yourself;
the
pro-
audio
level
in
your
earphone(s).
per
setting
is
anywhere
to
the
left
of the
null.
The
Sidetone
adjustment
is
located
IV.
SERVICE
If
the
RS-100A
needs
to
be
chassis.
serviced,
the
PC
board
may
be
5)
Unplug
connector
from
PC
board.
removed
as
follows:
Gently
remove
PC
board
from
chassis.
1)
Remove
the
two
screws
on
the
cover
of
the
belt-pack.
When
re-installing
the
PC
board,
2)
Remove
Volume
knob
and
nut.
reverse
the
above
procedure.
Make
3)
Remove
nut
from
Off/Mic/Call
sure
the
two
rubber
bumpers
are
switch
installed
on
the PC
board,
as
they
4)
Remove
the
two
flat-head
screws
provide proper
shock
mounting.
holding
the
PC
board
to
the
Page 4
V.
PARTS
LISTING
Part
#
Descriction
Reference
Designator
710052
Remote
Station
PC
Module
---
210013
Headset
Connector,
D4M
J-3
210002
Input
Connector,
D3F
J-1
210003
Extension
Connector,
D3M
J-2
510020
Switch,
toggle,
3-position
S-1
390000
Lamp
Assembly
I-1
390001
Lamp,
28v,
#327
---
240015
Knob,
black,
1/2"
P-2
250041
Belt-clip,
stainless-steel
---
cc/
R
01.c
A/IC~~~~~~I
PS-/OOA
BELOCK
DIAGRAM
0
~
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,ttctRH
Page 5
RS-100A
SPECIFICATIONS
AMPLIFIER
DESIGN:
Solid-state,
integrated
circuit
amplifiers.
Current-limited
and
short-circuit-protected,
with
reverse
polarity
protection.
MICROPHONE
PRE-AMPLIFIER
GENERAL
Mic
Input:
200
ohms,
dynamic
Station
Bridging
Mic
Pre-amp
Gain:
30
dB,,
adjustable
Impedance:
>20k
ohms
(200-10k
Hz)
Max
Input
Before
Clipping:
-26
dB
Line
Level:
-1
dB
max.
Freq.
Response:
250-12k
Hz,
+5
dB
Side
Tone
Adjust:
35
dB
null-full
on
Signal
Voltage:
11v
DC
on
audio
line
Call
Light
HEADPHONE
AMPLIFIER
Sensitivity:
4
volts
Load
Impedance
Range:
300-2k
ohms
Signal-to-Noise:
75
dB
Output
Level:
+20
dBm
Equiv.Input
Noise:
-121
dB
(before
clipping)
Power
Headset
Level:
>110
dB
SPL
Requirements:
10
ma
quiescent,
12
ma
(with
standard
Clear-Com
headset)
avg.
talk,
45
ma
signaling
Distortion:
<0.1%
THD e 1
kHz
DC
Voltage
Range:
12-32v,
28v nominal
Amplifier
Gain:
40
dB
Frequency
Response:
150-18k
Hz.
±2dB
PHYSICAL
CHARACTERISTICS
Dimensions:
2.75"
x
4.9"
x
1.6"
CONNECTORS
Weight:
1
pound
Headset:
(1)
4-pin
male,
D4M
Ambient
Operating
Line:
(1)
3-pin
male,
(1)
3-pin
female
Temperature:
0-6Oo
C
(32-140o
F)
D3M/D3F
Humidity:
0-90%
relative
humidity
HEADSET
"Y"-CORD
Clear-Com
can
provide
you
with
Model
fC-100,
a
device
that
allows
you
to
plug
two
headsets
into
one
beltpack.
Alternatively,
you
may
also
construct
your
own
Y-cord;
we
recommend
you
use
Belden
8416
or
equivalent,
or
Belden
8734
or
equivalent.
Refer
to
the
diagram
below
for
proper
connections.
Please
note
that
when
using
two
headsets,
the
output
level
will
be
decreased
by
3
dB.
HEADSET
"Y'CABLE
CONNECTIONS
A4M
A4F
N.
H
ilcsa3
SHIE LDED
A4M
CAUTION:
DO NOT CONNECT
P,
MCGROUND
&HEADPHONE
PVIN:
I
IC GROUND
GROUND
TOGETHER
AT
PIN 2:
iC HOT
Pln
H HEADPHONE
HOT
Page 6
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