Includes:
Model 4001 Control Station for 4 IFB, 1 SA
Model 4001M
Model 4002 Control Station for
Model 4002M Control Station for
Model
4003
Control Station for 4 IFB, 1 SA with Microphone
8
IFB, 2 SA
8
IFB, 2 SA with Microphone
Control Station for 12 IFB, 3 SA
1
0
Model 4lW3M
Model
9300-2594-00
Rev
4020
G
6/00
3
Control Station for 12 IFB,
Portable User Statlon / Talent Electronics
SA with Microphone
RTSTM
PROPRIETARY NOTICE
CUSTOMER SUPPORT
The RTS pmduct information and design disflosed herein
were ori~nated by and
Communications. lnc. Telex reserves all tent,
proprietary design, manufacturing, repdction, useand
sales nghts thereto, and
except to the extent rights
are
the property of Telex
to
any anicle d~sclosed thereln,
are
expressly granted to others.
COPYRIGHT NOTICE
Co fight 1994 by Telex Communications, Inc.. All
R
rig ts reserved. Reproduction in whole or in
pnor written permission from Telex is prohibited.
part
without
UNPACKING AND INSPECTION
Immediately upn recei of the equipment, inspect the
shipping contalner and
discreoancies or damage. Should there be anv. noti& the
freighi company and &e dealer at once.
5:
e contents carefully for an
,
.
WARRANTY INFORMATION
RTS products
be
Inc. to
for a period of three years
The sole obligation of Telex during the warranty period is
provide,
to
remedy covered defects appearin in products returned
pre 'd to Telex. This wananty
magnction or failure caused beyond
are
Eree
from
without
wananted by Telex Communications,
defects in materials and workmanship
from
the date of sale.
charge, parts and labor necessary to
f
oes
not cover any defect,
the
control of Telex,
Technical questions should be directed to:
Customer Service Deoartment
RTSITelex,
12000 Podand Avene South
Burnsville.
~elephone
Fax: (800) 323-0498
MN
55337 U.S.A.
(952)
884-4051
RETURN SHIPPING INSTRUCTIONS
PROCEDURE FOR RETURNS
If
a repair is necessary, contact
was pwchased.
If
re air throu
&A& ORIZATION
Customer Service Depamnent
Telex Communications, Inc.
Telephone: (877) 863-4169
Fax: (800) 323-0498
DO
NOT
THE
TO
OBTAINING A RETURN AUTHORIZATION.
Be prepared to provide the company name, address,
phone number. a penon to contact regardink the repair.
the type and
problem and ihe serial num&(s).
the dealer is not possible, obtain a
RETURN
FACTORY WITHOUT
quantity
ANY
of equipment, a
the
dealer where this unit
from:
EQUIPMENT
FIRST
description
DIRECTLY
of the
covered by this warranty.
To obtain wamnty service, follow the procedures entitled
"Procedure For Returns" and "Shipping to Manufacturer
for Repair or Adjustment".
This warranty is the sole and exclusive express warran
eiven with resuect m RTS ~roducts. It is the resmnsibi itv
6f
the user to determine betore purchase that &s produci
is suitable for the user's intended purpose.
WARRANTY.
NEITHER TELEX NOR
RTS PRODUCTS IS LIABLE FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF
THE
DEALER WHO SELLS
ANY
KIND.
Y
SHIPPING TO MANUFACTURER FOR REPAIR OR
ADJUSTMENT
All shipments of RTS products should be made via
United Parcel Service or the best available
pre~id. The yuifment should
I
pac ng carton,
container that is rigid and of adequate size. If a substitute
container is
moer
and sumunded with at least four inches o
kxielsior or similar shock-absorbing material. All
shi menu must
P
ude
inc
Upon completion of any re 'r
returned vla United Parcel crvice or specified shipper
collect.
the
Factoly Service Department
Telex Communicahons, Incorporated
West 1st Street
Blue
ASSY. MODEL 4001, MIC PRE BOARD. CC4000 - 9030-1999-W
-
9070-200600
................................
..........
...................
4002
-
KlOO-2361M)
....................................
..............................
ASSY. MODEL
ASSY, MODEL
4002.
MIC
PRE BOARD, CC4000 - 9030-1999-00
4002.
SWITCH BOARD - 9030-4376-00
..........
...............
................................
4002M
GOOSENECK - 9070-236143 6-5
...................
....................................
..............................
ASSY, MODEL 4003 . MIC
MODEL
4003.
PRE
SWITCH
BOARD,
BOARD.
(3(34000
CC~OOO
-
-
9030-1999-0
90~3n-00
..........
..........
................................
...................
MODEL 4010 - WXL2365-0
ASSEMBLY. MODEL 4010. CC4010 - 9030-1974-00
................................
..............................
.........................
.................
................................
....................................
4020
-
9010-1927M)
4020
-
ASSEMBLY. MODEL 4020 - 9030-1904-00
..............................
9020-1926-00
.........................
......................
.................................................
55
5-5
5-6
5-6
5-7
5-8
5-8
6-1
6-1
6-1
6-1
6-1
6-2
6-3
6-3
6-3
6-4
6-5
66
6-6
6-7
6=1
6-8
6-8
6-8
6-9
6-11
6-11
6-12
6-12
6-12
A-1
El
N-1
7-1
a
SECITON
SPECIFiCATIONS
1:
INTRODUCTION
AND
13
CENTRAL
ELECTRONICS MODEL4010
l.l
INTRODUCTION
This
IFB
System
wmmunications system (a program mterrupt system)
created especially
television broadcast industry,
recarded media applications. The system
User Stations Central Electronics and Control Panels. A
modular approach
each installation.
aadindalwmpon~nts mi be add&
typical system
Control Panels, one Central Electronics unit, four User
Stations, and assorted cabling and interconnect
maximum standard wnfiguration
Panels, three Central Electronics, and twelve User
Stations.
l.2
USER STATION MODEL
The User Station, a small "belt pack" package, allows the
talent to
Central Electronics and the Control Stations and may be
worn
sportscasters, etc. Behind-the-scenes pemnnel may
find the
wntrol. These may be production assistants, audio boom
operators, stage monitor mixers, "on stage" producers,
Each
orovide a stereo audio siensl to the user.
&npliirs rated at
set of headohones or loudsoeakers.
conveniently extended to hressing rooks or other off-
camera
The line input to the belt pack
Electronics unit. This signal contains the audio
information
the belt pack. Both the left and right signals are wried
on a standard two-eonductor microphone cable. The left
channel is designated
noninterruptible. Separate
and stereo headphones. Individual left and right volume
controls on the belt pack enable the user to adjust
listening levels for personal wmfort. When mono
headphones
program
A
standard
with this system and may be used
4MO
*"IFBm
and "foldback".
receive
by
IFB
belt pack contains the necessary electronics to
areas
-
User Station if necessary.
is
also
is
a one-way Interruptible
to
meet the critical requirements of the
as
assures
Should svstem exnansion
may
the audio signals designated
talent, such
the optimum configuration for
consist of the following: up to four
4020
as
newscasters, musicians,
well
allows
FeedBacka
as
other live or
is
composed of
be
desired.
as
necessary.
units.
four Control
The
by
also
feeds usehl for production coordination and
Two
paver
In
waneach are
where communications is desirable.
as
well
as
the
DC
as
interruptible, the right channel,
jacks
are
used, they
interrupted program audio.
TW
Intercom belt pack is
known
as
are
"IRF,
ca
able of dhg any
TR
us
the
IFB
can
is
driven from the Central
voltage ne- to power
are
provided for mono
fed only the left channel
fully
compatible
in
place of the Model
Interrupted Return Feed"
A
the
etc.
be
The Central Electronics unit contains all the necessary
wntrol functions and electronics to provide the active
between the Control Station
accepts three program inputs, four microphone inputs
and switch keying signal inputs from up
Stations. In addition, it supplies composite output feeds to
the User Station belt
Stage Announce (SA) ampuer, relay contacts
monitor muting, and interwnnection
Stations.
The three bridging program inputs
vanel terminal strirj. These simals
b
eight
of the three ro
level wntrofl =tput of
driver amplifier
This
output.
right channel line input. For the
output of the level control
then to a summing amplifier. The summing amplifier
drives a power output stage which adds the audio
29
volt
a
left channel line input.
the
in
be
assigned the
internal
have the interrupt signal in both
headphones.
SA
The
three program signals to the SA Output connector.
This
SA Output
Station feed, except
floatin transformer-balanced. This output may be
amp
hf!
'
mom speaker or some other area The program signal
assigned to the SA output
micro
ol
a pr
pmgram level control
only the microphone signal
When the SA function
activated inside the Central
appear on the
connected to a control room monitor amplifier input.
They
prevent feedback when the SA
internal programming jumpers
allow two separate
booth Control Station SA function may be engaged,
muting that local speaker only, and not aaecting the
production control room speaker.
uninterrupted signal
DC
potential.
left channel only. H-er, the right channel may
circuit
(Stage Announce)*
ed and fed to a stage announce speaker, dressing
hone signal from any of the control panels. Should
uction not require a program feed to the
can
be
used to mute the local monitor speaker and
packs,
selector-k4tches
sources
which
sends
This
This
same
s@al
board santch. The
is
similar to the left channel of a User
it
does not
may
rear
panel terminal
areas
and
the
User
to
four Control
line-level
to the
this
audii
is
fed to an
audio feeds the User Station
allows for pmgram interrupt
as
feature
can
be turned off, in which
is
heard.
is
used,
Electronics.
of speaker muting, e.g., the audio
audio
feeds
to
the Control
are
available on a
are
attenuated and fed
that
assign any one
lespective
level control
to
the
feeds
interrupted channel, the
front-panel
noninterrupted
the User Station
electronic
the
left
channel via an
User
Station may now
ears
when
using
routes any of the
carry
dc
and it
be interrupted
one or
is
may
two
Tkeir contacts
strip
and
in
use.
In addition,
be configured
link
Station. It
to
the
for
rear-
is
fed to a
switch
signal to
stereo
is
fully
by
stage,
the
case
relays
are
can
be
a
to
Page
1-1
*"SAU
Address
selectable monitoring of any input or output signal via a
st-
sffa only the monitor circuits and do not interfere with
other functions.
Inside the Model 4010, a single large circuit board is used
to mount all electronic wmponents.
terminal strip provides connections for the program
inputs,
Connection between the Control Stations and the Central
Electronics
connector.
1.4
4001,4802,4003
The Control Station
equipment rack. It provides a given number of switch
functions
offers
IFB
supplk
Each
This refers to a gooseneck micro hone attached to the
panel. Should an existing microp
is
also known
A
frontpanel monitor section allows for
phone
jack.
IFB
outputs, SA output, and relay contacts.
is
made through a 50-pin miaoribbon
CONTROL STATION MODELS
accordin
IFB
1
thru
1
thm
IFB
8,
IFB
1
thru
model number may
for operations, a connection on the Control Station
microphone preamp circuit
microphone-level or line-level signal from that
microphone.
as
Studio Announce or Studio
A
volume
1
WlM,
is
to the model number. The 4001
dB
IFB
12,
control and a selector switch
A
-2M,
designed to mount in a comb or
4,
IFE
ALL,
IFB
be
4003M
ALL
and SA. The 4002 has
SA 1 and SA
ALL.,
SA
ordered with an "M" suffix.
R
one
board
may be used to accept a
2.
Model 4003
1,
SA 2 and SA 3.
be
more suitable
rear-panel
The Model
paralleling two female connectors to co~ect
controls\ stations
The Model
four female mmectors for
stations.
snap-on cover housing.
1.6
SPECIAL OFTIONS
A
return-send function may
small
modifications.
User Station
via a closed-circuit bop.
by
switching in
feed to that station.
Electronics
which
connect to a 9-pin
rear panel.
transfer the announar's microphone from the propam
line to a monitor
room. The person at t
the announcer without having the signal go over the
4022
4WA
AU
connectors
to
turn
This
features a single male connector
two
to
the central electronics
features a
This
communicate with the Control Stations
an
extra load, usually a lamp,
on relay-driving
allows
am
f
single
male
connector
use
with
up
to
four
are
held searely in place
be
incorporated
feature
This
Sensor
miniature
an external relay to
litier
e control station may now listen to
allows the talent at the
is
done
at
the User Ststion
ckmits
circuits,
or intercom in the control
in the Central
the outputs of
D
mnnector on the
control
with
agoas
be
used
with
with
some
the
air.
to
a
Each
Control Station is connected to the Central
via
Ele~troniCS
cable
with microribbon connectors.
Stations converge at the 4025 and a single cable then
connects to the 4010.
Model 4001 Control Stations to be connected to a single
Central Electronics unit. When
Electronics units are ud in an eight output
conĀ£iguration, the Model 4002 controls all outputs from
up to four locations. Similarly, three Model 4010's and
twelve outputs
up to four locations. Priority of Control Station switch
signals is pmgrammable and may be
installation. The system may be used without priority
switching if desired.
1.5
SPLCITERASSEMBLY
MODELS
The splitter assemblies connect the control stations with
the central electronics ria 25-pair cable with microribbon
connectors.
a Model 4025 Splitter and 50-conductor
An
the Control
This
configuration allows up to four
two
Model 4010 Central
are
controlled with a Model 4003,
set
at the time of
4022
And
4025A
also
in
Page 1-2
W.1 MODEL 4010
CENTRAL
Frequency Response
30 Hz
to
16 kHz
Nok*
Interrupt channel
Non-intempt channel
Total Harmonic Distortion
Nominal Input Level
@
Miaophone
line level
Program
Nominal Output Level
User
SA
amplifier
Stations
To
To
Crosstalk
Fmm other program inputs
&
Between left
right channels
ELECTRONICS
-10
dBdinput
0
dBu/input
-8
dBuhnbalanced,
-5
dBu/balanced,
Z=2k
Z=2k
ohms
2=800
ohms
Z=10
ohms
ohms
Mains
Power
45
Consumption
1201240
1.7.2 MODELS 4001/4001M, 4002/4002M, 4003l4003M
VAC
50/60 Hz
volt-amps
Frequency Response
5OHzto16lcHz
Signal-To-Noise Ratio
Total Harmonic Distortion
Nominal Input Level
Microphone
Line
Input Impedance
Microphone
Line
123mV
-15
dBu to
Unbalanced input
470
4.711
Gain
-10
Nominal Ouput Level
dBu, balanced,
p-p
ohms
ohms
-5
dBu
Z=UM
ohms
Page
1-3
Size And Weight
4001/4001M
4003/4003M
Power Supply
Power Requirements
4001/4001M
14 VAC
@
200
mA
4002/4WZM
4003I4003M
Specification Notes
*
Ref: 05 V @ 1
responding meter.
NOTE:
AU
product information and specifications
14 VAC @ 450
14 VAC @ 1.0
kHz,
measure at output terminal terminated into
are
subject to change without notice
mA
amp
600
ohms @ +10 dBV, 20
Hz
to
20
kHz,
average
Page 1-4
SECTION
2.1
The Central
mounted unit.
sopported
dimensions and outline
of the
of
this
provides a rear panel terminal
the Model
impedance, line-level
standard microphone cable. or telw cable.
Station
(2500
adapter,
(5WO
and Program Inputs, may be made at
2:
INSTALLATION
STANDARD INSTALLATION
Mth the
Snies
El&&,
me
4000
mu
IFB
Model 4010,
of
the
Model
provided.
dra*
for all wmponents
is
4010 must
htallation
System are located at the end
manual. The Central Electronics, Model 4010,
strip
for connection to
4020
User Stations.
signal
This
is
and may be sent
The
will
work
at distances of up to
feet)
with
#22
cable. With an optional battery
this
range
can
be
feet). Connections for
extended
SA
Output,
to
1500
this
760
SA
terminal
a rack
be
a
low-
over
User
meters
meters
relays,
strip.
use
The Control Stations
either individual or common
local AC power supplies. This allows the interconnect
2.12
CONFIGURATIONS
cables (to
carrying
might
supply provides power for
switch
2.1.1
The standard Model4010
designed to operate on
50or60Hz
operate at % volts
volt model operates on
Hz
10%,50
require 1214 volts ac or 16-20 volts de. A
mounted power module
ac at
or transformer capable of supplying
TheoptputmanedstoTB2,tenninals3and4onthc
the
Central Eledronics) to
only,
bring
lamp.
INPUT
avoiding
the entire
ELECCRICAL
the
chance
system
120
that
down
This
the
electronics and
POWER
IFB
central ekt~onies
volts
ac
Thew-100voltmodelisdesignedto
ac
10%,50 or
220
60
volts ac 10%- 50 or
The 240-volt model operates on
or
60
Hz
1
amp
The series
is
provided for
with
4000
an output of S14 volts
this.
Any external supply
this
remain
signal-
a shorted cable
local
power
the
(MAINS)
10% at either
Hz
The
220-
60
240
volts
ac
control stations
wall
may be
nsul.
microphone preamplifier board of the control station.
See
figure 2-1.
signal
an average
The
program inputs accept balanced lines
level of about
signal level of +4 to +8 dBu. See figure
-5
dBa
See figure
with
26.
26.
is
a
A
standard interrupted feedback system
one Model 4010 Central Elwtronics, four Model
User Stations, one Model
4025
Splitter Assembly, and
at least one Model 4001 Control Station.
four Control Stations may
2.13
WIRE
AND
CABLE
be
used. See figure
CONSIDERATIONS
can
wnsist of
As
4020
many
22
as
The Control Stations are connected to the Central
Electronics with 50-conductor ribbon cables, Model
4015-MI.
The
MI
is
the cable length in feet. These
cables may be ordered in 5-foot increments from
feet to 100 feet. The maximum recomended cable
length
is
100 feet from any Control Station to the
Central Electronics. The user stations are wmected
to the Central Electrodtes through standard
the Control Station.
to a Model 801 Master station, see Appendix C.
5
The
design of the Series
field installaton and adjustment of
features
diseussed
TO
EMSTING
TYPE
USER
STATIONS AND
Control Station
(figures
series
2-7
4000
MICRO-
can
be
conneded to
and 28) and
Control
Mic
Station
output (USM)
user station to the line-level input on
See
figure
29.
For connections
4MW)
IFB
system ped easy
the
options and
below. Options/featuns indude
priority controt speaker muting mnes or areas, return
IFB,
expansion of the
andselection of monaural
IFB
"ALL"
IFB
(same signal-the
TW"
can
function
22
OPnoNS INSTALLATION
(mtfaued)
RETURN
IFB
INSTALLATIONS
intmpted program-in
rrpuires
A)tobesuppliedby thecuaomcrortobecustom~
from RTS Systems. The additional equipment
normally consist
signals in a soitable junction box
relays. The relays
Central
Model
(see
The Model 4010
a
override another.
aetermined
(figure
switchboatd, the priority
cbanged See
prioritymay
Model
Statim have
additional
Electronics
4020
for
text
below
and
priority arraagemnt
at
the
2-10) go- to which
bedefeatadby1wnovingU6andU16inthe
4010
Central
equal
worLsonlywiththeIFBkeys.
priority fm. The signals
should
Two
the
muting.
Announce (SA)
penuits,
without intermptiag
and
priority 1, station 2
resistors intact,
two
Contml Stations be
sap
of
relay
4010
central
These relays work in conjunction with
for example,
vice versa By
2-14
the
relay
station numbers
(see
section 2.2.1, Setting Up Riority). Station
pressed
on any control station.
both
em).
The
rrtllm
IFB
equipment
of
relays to
are
unit.
"IW"
Appeadix
IFB
The
Conml
fipm
Electronics.
priority. The priority ovenide function
mulcts
Elecaonics for
buaons
the
cutting
wilt
be
are
dmrmined
has
both
(see
mtbdow
switch
coatrolled
In
addition. a modi6cation to
system
Central
by
which
priority
Station By changiug
jack
of
2-11 through 2-13.
he-level microphone
and
a
from
type
user
B).
Electronics,
one
of
on
that
Control Station
In
Thestageann-hasno
are
merely mixed t0gek-x
keyed
are
provided
area
on the Couhul Sta6m. Tbis
the
audio oparator to
director's pmgrammonitor
out the
resistors
deactivated
by their priority selection
priority 2, etc. Normally, with
relays
work
when
and
Appendix
power
supply for the
the Model 4010
station
is
as
supplied,
Contml
a Control Station
the Control Station's
this mode all Control
sim-usly.
MW
which
If
desind,
at
the
back
contrd of
the
use
shown in
for
that
station.
an
SA button
option
wdd
the
required
has
will
is
plug
can
be
the
panel
of
speaker
Stage
the
SA
speaker
fiugre
The
1
has
all
is
A~-&fuMionmayk~withgomt
smaU
modiiicatious
the talmt
Control
the User
at
Stations via
Station
lamp,acrossthefeedtothatmtion.
Cmtral
terminal
connector on
to transfer the anmumds miaophone
Electnmica
appears open ended at a 9-pin miniature D
lhetoadtoramplihainthecontrolrwm.
at
the
Control Station may now
without
the
%volt relay
the signal going over the
miniature
~JJC
User Station
by
the
mar
D
wmecbx
at
up
to
(sea
figm
2-15).
a closed-circuit loop.
switching in
tums
on a
panel.
This
is
capable of operatiag a 12- to
SO
mibmpa
This
to
communicate
an
exm
Asglsmcircuitinthe
trsnsistor
allows a relay to be
listen
air.
The output through
The
feat1118
This
load,
whose collecbx
from
to the anno-
relay
allows
witb
is
done
usually a
the program
Thepason
will
uigger
the
at
used
when60~touX)~isdrawnfromtheline.
Thew;actvnlueissetbyR4forchannel1,R33
2, R62 for
2-15. To
channel
hi-
3,
and
R91
for
channel 4.
the hay, switch a 12-volt
iampacrossthe12voltsintheasastation
user station
is
used.
22A
per
output may be
EXPANDING
ALL
FUNCTION
THE
CONTROL
used
when
forcbanuel
See
figwe
90
milliamp
Note:
Odyone
the
return
option
STATION'S
The"IFBW"bumooontheControlstationcausesallof
theIFBbuttonstobeactivated. The"SAnbuaonis~
activattd
add
MODEL: DIODWS):
40010 D25
4002(M)
40030 D100, D105, Dl10
When
switched to the
station wiU receive
2-
16.
TomaketheSAw&withthePBWbuttoa
the following
the
switches
diodes.
D56, D61
inside
right
both I&
thehtemqtd
the 4010
and
Central
right
program feed.
Electronics
charnels
at
the
Sea
are
user
figure
Page 2-2
OLD VERSION
NEW VERSION
Power
Connection
FROM POWER MODULE
OR ALTERNATE SOURCE
Figure
To
2-1
Series
4000
Control
Stations
_(
The
system
emblies
may
be
expanded
and
four Control Stations. See
for up
to
twelve.
figures
User
23
Stations,
and
2-4.
Page
2-4
three
Central
Electronics, three
Splitter
Ass-
CONTROL
STATION
mq
STATION
CONlROL
STATION
1x4
SPUmR
MODEL
4025
Fire
A
ConGgumtion-2
Page
2-3
System
2-5
Figore
A
Contiguration-3
2-4
System
S
ON
TO
USER
STAT1
INT
11
LO
-OUT
21
LO INT INT
INT
-0UT3- -OUT
NoN NoN NoN
INT INT LO INT
41
LO
INT
TOUT
INON
MIN
#22
CABLE
SHIELDED MICROPHONE
FROM
PROGRAM
SOURCES
TO
Si
Pmgram
Input
Figure
And
Page
SA
2-8
24
Output
Connections
OLD VERSION
NEW VERSION
Balanced
Figwe
Mic
2-7
Lavel
Input
OLD VERSION
NEW VERSION
Page
2-10
APPROX EQUAL TO
SOURCE SUCH
TERMINAL OF
AS
MI
-1
0
dB
"USW
USER STATION
(ClRCUrf SIDE)
OLD VERSION
Figurn
Une
LeveI
NEW MRSION
2-9
Input
Control
Figwe
Station
Page
2-10
Cable
2-12
Assembly
PI
-P4 DETERMINES
PRIORITY
Wpm
Priority Connections To
2-11
4001
Control Station
TO
1s
IFB PI -P4 DETERMINES PRIORIN
CENTRAL ELECTRONICS
(OUTPUTS 1-4)
\-
P1 -P4 DETERMINES PRIORITY
P5 TAUY (OUTPUTS 5-8)
{
P5 TALLY
CENTRAL ELECTRONICS
Priority
Figure
ConnceUons
For
Page
2-I2
4002
2-14
Control
Station
TO
1ST
IFB
CENTRAL ELECTRONICS
(OUTPUTS
1-4)
P5
TALLY
PI-P4 DETERMINES TO
PRIORITY
P5 TALLY
CENTRAL ELECTRONICS
(OUTPUTS
Prlodty
9-
12)
Figom
Cdons
2-13
For
4003
Control Station
2'40
IFB
CENTRAL ELECTRONICS
1-
(OUTPUTS
5-8)
Page
215
Figure
Speak
Page
2-14
Muting
2-16
Zones
J8
I
DPS
CONNECTOR
I
TO
24VDC
SUPPLY
Return
Figore
IFB
Connestions
Page
2-15
2-17
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