Simplex 2120 Configuration guide

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CAUTION
ELECiRlCAL HAZARD
Disconnect electrical power when making any internal
adjustments or rebairs. Installation and servicing
should be performed by qualified Simplex Representa-
tives.
CAUTION
POWERING REQUIREMENT
When removing payer from this system, disconnect
batteries FIRST and1AC power last. When connecting
power to this system. connect AC power FIRST and
batteries last.
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HOW TO USE THIS PUBLICATION
This publication provides information on 2120 Multiplex dual channel voice communications systems. Typical
equipment configurations are illustrated, as are specific interconnections between 2120 and 2001 equipment.
This manual is divided into the following sections:
l MAIN EQUIPMENT
l REMOTE EQUIPMENT
l CLASS A AUDIO FOR DUAL CHANNEL SYSTEMS
For More Detailed lnformation . . .
refer to the documents listed below.
2001 Voice Communications Wiring Diagrams
2001 Systems Troubleshooting Guide
2001 Voice Communications Module Descriptions
System interconnection drawings for the specific installation
Equipment cabinet drawings for the specific installation
INTRODUCTION
2120 Multiplex dual channel voice communications systems are similar to single channel systems. Both use 2001
voice communications equipment to provide their basic functions. However, a dual channel voice system has an
advantage over a single channel system: The dual channel system can transmit two different audio messages
to separate areas of a building at the same time. Simultaneous operation requires some special features:
l A set of SMPL programs that appropriately operate system speaker circuits.
l Two audio control modules.
l Two riser power preamps.
l Two audio risers.
AND
l (In certain applications) Special FABT or ET dual channel audio relay boards.
There are two basic configurations for 2120 dual channel audio systems (Figures 1A and 1B). The difference
between the two is the size of the SCC used. Figure 1A illustrates a system in which a lo-module SCC is used;
in this application, the two riser power preamps are located in the SCC cabinet (along with the microphone
enclosure assembly, if used).
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r -w------------w------, I
I
INTERFACE
,I sf$;ES TRANSFORMER 1 ,
r -----------------
1
L
AUDIO IN TO EACH
lNOlVlDUALAUDlORELAV
FABT
I I
AUDIO
CONTROLLER RELAY
BOARD BOARD
I I
REMOTE
AMPLIFIER
TO OTHER
VPBTS IN
-THE SAME
CABINET
SPEAKER
CIRCUITS TYPE t
I
TRAiSFORMER
CABINET (VPBT)
L--------------------4
BMUX AND SCC CABINETS
CLOSE-NIPPLED (SIDE BY SIDE).
I
BMUX see EVACUATE
AUDIO
CABINET CABINET
RISER
r ----- "
I
DUAL VOICE n EVACUATE ALERT
COMMUNICATIONS II POWER POWER 17
EOUIPMENT ‘1’ PREAMP PREAMP {’
ALERT
. AUDIO AUDIO
HARNESS RISER
2120 Dual Channel Voice Communications Block Diagram
(1O-Module SCC Only)
FIGURE 1A
2
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Figure 1B illustrates an application in which a 30-module SCC is used. If that SCC contains a microphone
enclosure assembly, then the two riser power preamps must be mounted in a close-nippled transponder cabinet.
r- _--_-__--------
-----1 I
l- _______ ----------,
I
I
L---------------------
CABWET
.i
2120 Dual Channel Voice Communications Block Diagram
(304odule SCC Only)
FIGURE 1B
Let’s look at the various components of the 2120 dual channel audio system. We’ll start with the main equipment.
I
Throughout this publication we will use 2001 product identification numbers for voice
communication equipment to make it easier for you to cross-reference 2001 voice
communications documentation.
3
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MAIN EQUIPMENT
This section discusses the dual channel audio equipment used in the BMUX, SCC, and riser preamp cabinets,
and the interconnections between that equipment and 2120 equipment.
THE BMUX (FIGURE 2)
A typical BMUX cabinet configuration in a dual channel application is shown in Figure 2. The dual channel audio
equipment used in the BMUX cabinet is listed below.
l An “ALERT” audio control module (2001-6005) which provides presignal tones and interfaces the
microphone to the audio system.
l An “EVACUATE” audio control module (2001-6064) which provides evacuation signals and interfaces the
tape player (if used) to the audio system.
l An optional message player assembly consisting of:
- a digital message player (2120-0238)
- a timer (2001-3042)
- two dual preamp monitor modules (2001-6027)
NOTES
1. All models prior to March, 1987 contain a tape player (2001-6046) rather than a digital message player (2120-
0238).
2. If a message player is not used, then a four-place card rack is supplied to house the preamp monitor modules.
l DIGITAL
, MESSAGE
PLAYER
(OPTIONAL)
- ALERT
AUDIO
CONTROL
MODULE
’ EVACUATE
AUDIO
CONTROL
MODULE
l Models prior to March, 1987
contain a tape player rather than
a digital message player.
Typical BMUX Cabinet iconfiguration
FIGURE 2
4
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Figures 3 through 5 illustrate the interconnections between each dual channel audio component and the BMUX
equipment. Notice that the local BT is u&d to implement various audio functions, just as it is in the single channel
audio system.
>
AUDIO SYSTEM TROUBLE
I
+ V IN FROM
FROM PREAMP MONITORS LOCAL BT CONTROL
TO LOCAL BT MONITOR
l-l-
POINT 1 TO ACTIVATE
POINT 7 AUDIO SYSTEM -
EVAC PREAMP ALERT (TALK) TIMER
MONITOR PREAMP MONITOR
1
2 3 4
+V IN FOR
AUDIO TROUBLE
RESET FROM
OSCILLATOR
CONTROL SWITCH
MODULE IN SCC
CABINET
OVFOR & J STOP TO
EVAC AUDIO CONTROL MODULE
Pl
MESSAGE
(OR TAPE)
PLAYER
Note: Refer to 2001 Systems
Troubleshooting Guide
and BMUX cabinet
drawing for 2001
module interconnections
not shown here.
_, MESSAGE (OR TAPE)
1.
AJDIO OUT
TOEVACUATE
AUDIO CONTROL
MODULE
MESSAGE (OR TAPE) RESET
FROM LOCAL BT
CONTROL POINT 2
Message Player Assembly
FIGURE 3
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>
OVFOR OSC STOP
TO LOCAL BT
MONITOR POINT 5
OSCILLATOR CONTROL WlPREAMP MIXER
MIKE/MUSIC
INTERFACE
BOARD
P3
P2 I I I I
I I
CABINET, OR PREAMP
CABINET (AS APPROPRIATE
I -
. +V IN FROM OSCILLATOR
I
CONTROL SWITCH
MODULE FOR MANUAL
’ ALARM
>
OV IN FOR OSC
STOP FROM OSCILLATOR
CONTROL SWITCH MODULE
OV IN FOR OSC
STOP FROM
MICROPHONE
Note: Refer to 2001 Systems
Troubleshooting Guide
and BMUX cabinet drawing
for 2001 module interconnections
not shown here.
FROM DUAL CHANNEL
AUDIO EQUIPMENT
IN
SCC CABINET
ALERT (TALK) Audio Control Module
FIGURE 4
6
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+ V IN TO ACTIVATE
AUDIO SYSTEM FROM LOCAL BT
CONTROL POINT 1
+ V IN FOR MANUAL ALARM
FROM OSCILLATOR CONTROL SWITCH MODULE
IN SCC CABINET (VIA ALERT AUDIO CONTROL MODULE)
OSCILLATOR CONTROL W/PREAMP MIXER
.-I,-~
6 5
-8 7
11 12
10 9 9 10
12 11 7 8
14 13 -
16 15
P3 EL-
5 6
3 4
1 2
P2
+V IN FROM AUX. 1 TONE
FROM OSCILLATOR CONTROL
SWITCH MODULE
+ V IN FOR AUX. 2 TONE
FROM OSCILLATOR CONTROL
SWITCH MODULE
>
OVIN FOR OSC STOP
FROM OSCILLATOR CONTROI
SWITCH MODULE c
AUDIO OUT TO
EVAC POWER
APPROPRIATE)
FROM DUAL CHANNEL
AUDIO EQUIPMENT
IN SCC CABINET
>
OV IN FOR OSC STOP
FROM MESSAGE (OR TAPE) PLAYER
Note: Refer to 2001 Systems
Troubleshooting Guide and
BMUX cabinet drawing
for 2001 module interconnections
not shown here.
EVACUATE Audio Control Module
FIGURE 5
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Figure 6 shows two typical transponder specification sheets for the local BT, listing the functions of local BT
monitor and control points in a dual channel audio system.
SSimplex
2120 TRANSPONDER CONTINUATION SPECIFICATION SHEET
TRANSPONDER SPECIFICATION WORKSHEET
NO ll-2)-
NDER NO ,1-63~-
NDER TYPE ,PROD ID!
da)11;;N’ 11CUSTOMLABE
channe
I CHANNEL No ~1.21~
2 TRANSPONDER NO 11.631-
Typical Transponder Specification Worksheets
for Local BT Dual Channel Voice Comm. Functions
FIGURE 6
8
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THE SCC (FIGURE 7)
The typical SCC cabinet configuration in a 2120 dual channel voice communications system is shown in Figure
7. The dual channel audio equipment used in the SCC cabinet is listed below.
l A dual power preamp assembly (2001-6063).
0 A microphone enclosure assembly (2001-6030), consisting of a microphone panel and an oscillator control
switch module for dual channel audio applications (2001-6065). (Instead of an ALL CIRCUITS switch, this
oscillator control switch module has a three-position ALL TALK/OFF/ALL EVAC switch.)
0 One or more three-position maintained SCC switch modules (2120-731 l), used for speaker circuit selection
(center position = automatic; up position = ALERT; down position = EVACUATE).
Note: If a fire fighter’s phone is used in a 30-module SCC, then the dual preamp assembly mounts in a close-
nippled transponder cabinet. Interconnections, however, remain the same.
FIRE FIGHTER’S
,TELEPHONE
ASSEMBLY
MICROPHONE
.ENCLOSURE
ASSEMBLY
Typical SCC Cabinet Configuration
FIGURE 7
9
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Figures 8 and 9 illustrate the interconnections between the’ SCC dual channel equipment and the equipment in
the BMUX cabinet.
+ V OUT TO BOTH
AUDIO CONTROL MODULES
WHEN MANUAL ALARM SWlTCH
ACTIVATED 1
+ V OUT TO EVAC
AUDIO CONTROL MODULE WHEI
AUX. 1 TONE SWITCH
ACTIVATED
+ V OUT TO EVAC
AUDIO CONTROL MODULE
WHEN AUX. 2 TONE
SWITCH ACTIVATED
OSCILLATOR CONTROL
SWITCH MODULE I III
OV OUT WHEN OSC STOP
SWITCH ACTIVATED
+ V AUDIO TROUBLE RESEl
OUT TO PREAMP MONITOR
MODULES IN BMUX
CABINET
+ V OUT TO LOCAL BT
>
MONITOR POINT 6 WHEN
ALL CALL TALK SWlTCH
ACTIVATED
+ V OUT TO LOCAL BT
f%YEzzll~:
ACTIVATED
/
TO DUAL CHANNEL
AUDIO EQUIPMENT
IN BMUX CABINET
MICROPHONE
ASSEMBLY
lN BMUX CABINET
AUDIO
EQUIPMENT
IN BMUX
CABINET
Note: Refer to 2001 Systems
Troubleshooting Guide and
SCC cabinet drawing
for 2001 module
interconnections not
shown here.
Microphone Enclosure Assembly
with Oscillator Control Switch Module
FIGURE 8
10
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l-7
AUDIO SIGNAL IN
FROM TALK AUDIO
CONTROL MODULE IN
BMUX CABINET
TBl
ALERT
(TALK)
RISER
PREAMP
\I
TALK AUDIO RISER
OUT TO TRANSPONDERS
VIA CONTRACTOR
TERMINAL BLOCK
AUDIO SIGNAL IN FROM
EVAC AUDIO CONTROL
MODULE IN BMUX CABINET
p\ __ SIG IN
Ii __-
1 -0v
EVACUATE
. -0v RISER
+24-
PREAMP
2
1
I ’ I
TBl
EVAC AUDIO RISER
OUT TO TRANSPONDERS
VIA CONTRACTOR
TERMINAL BLOCK
NOTES
1. Refer to your system’s interconnection diagram for
audio riser terminations.
2. Riser preamps only mount in lo-module SCCs; if a
30-module SCC is used, then the preamps mount
in a separate cabinet close-nippled to the SCC or
BMUX cabinet.
3. Refer to 2001 Systems Troubleshooting Guide
and appropriate cabinet drawing for 2001 module
interconnections not shown here.
TALK and EVACUATE Riser Preamps
FIGURE 9
11
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REMOTE EQUIi’MENT
This section deals with the dual channel voice communications equipment used in FABT and ET cabinets and how
that equipment is tied into the two 2120 audio risers. There are two FABT and ET cabinet configurations in dual
channel audio systems.
TYPE 1 TRANSPONDER CABINETS
All speaker circuits in a Type 1 transponder cabinet use either the “ALERT” audio signal or the “EVACUATE”
audio signal - BUT NOT BOTH. A Type 1 transponder cabinet could either:
(A) Contain one or more VPBTs.
OR
(B) Consist of an ET containing standard audio relay boards.
Note: The abbreviation “VPBT” (voice/phone basic transponder) refers to an FABT containing standard audio
relay boards.
The VPBT
VPBTs in a Type 1 configuration are almost identical to VPBTs in a standard audio application. Two extra
components are used in the Type 1 VPBT cabinet:
l An audio interface transformer/relay switcher (617-221), which performs two functions:
- It interfaces the incoming audio signal to the cabinet’s audio amplifier.
AND
- It selects which audio riser signal will be used by the speaker circuits in the associated VPBT(s). (The
switching relay is operated by a transponder control point via SMPL programming.)
l An audio riser monitor (562-125) and associated mounting hardware, The monitor is required only when a
Type 1 VPBT cabinet is electrically the last in line on the audio risers. The audio riser monitor supervises
the ALERT riser for opens or shorts. A transponder monitor point is used to supervise the audio riser
monitor’s trouble output.
Except for these two differences, VPBTs in standard and Type 1 applications are identical. Figure 10 shows how
the audio interface transformer/relay switcher and the audio riser monitor tie into the dual channel audio risers.
The ET
ETs in a Type 1 configuration are almost identical to ETs in a standard audio application. The difference between
the two are the same as the differences that exist between the standard and Type 1 VPBTs. In fact, both the Type
1 VPBT and Type 1 ET use the same dual channel audio components. Figure 10 shows how the audio interface
transformer/relay switcher and the audio riser monitor tie into the dual channel audio risers.
12
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\ FROM TALK
r
AUDIO RISER
(SEE NOTE)
I I.. I
REMOTE
AUDIO
AMPLIFIER
I@MzII I A II I+24 1
I
!i I i lEtI
TO VPBT OR
ET CONTROL
POINT VIA
... -...-I1
\ AUDIO INTERFACE
TRANSFORMER/RELAY
SWlTCHER
I >
FROM EVAC
AUDIO Note: In the last Type 1 VPBT or ET cabinet in the
RISER system, the TALK audio riser will be
supervised by an audio riser monitor. In such
cases, the TALK audio riser will be factoty-
wired to the audio riser monitor and from there
connected to the interface transformer/relay
switcher.
Remote Amplifier Connections
FIGURE 10
13
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TYPE 2 TRANSPONDER CABINETS
The speaker circuits in a Type 2 transponder cabinet use the signals on both audio risers to provide “ALERT”
and “EVACUATE” tones to different building areas simultaneously. For example, suppose the speaker circuits for
floors 1, 2, and 3 in a building were controlled by equipment in a Type 2 transponder cabinet. An EVACUATE
signal could then be sent out over the second floor speaker circuit, and an ALERT signal could be sent out on
the first and third floor speaker circuits AT THE SAME TIME. Appropriate equipment and SMPL programming
make the system work as required.
A Type 2 transponder cabinet could either:
(A) Contain one or more DABTs.
OR
(B) Consist of an ET containing simultaneous audio relay boards.
Note: The abbreviation “DABT” (dual audio basic transponder) refers to an FABT that uses a dual audio relay
board.
The DABT (Figure 11)
The DABT is quite different from any VPBT because it is designed for a Type 2 application. It uses equipment
different from that used in a VPBT. The typical DABT cabinet contains the equipment listed below.
l A dual 50W amplifier (2001-6063) one amplifier for each audio riser.
l Two audio interface transformers (2001-6056) one for each audio amplifier.
l One or more dual audio relay boards (562-590).
Each DABT in a Type 2 cabinet provides:
l Five monitor points.
l A smoke reset output (for resetting 4-wire smoke detectors).
l One simultaneous audio control point.
l One control point used for selecting ALERT or EVACUATE signals.
0 One auxiliary control point.
Note: The auxiliary control point provides normally open dry contacts. It can be used as another simultaneous
audio control point, but both simultaneous audio control points on the same DABT must use the same
signal (either ALERT or EVACUATE) if two speaker circuits per floor are necessary.
Figure 12 illustrates how the DABT voice communications equipment is tied into each audio riser.
14
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TALK REMOTE
AMPLIFIER WlTH
AUDIO INTERFACE
TRANSFORMER
EVACUATE REMOTE
AMPLIFIER WITH
-AUDIO INTERFACE
TRANSFORMER
Typical DABT Cabinet Configuration
FIGURE 11
15
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TALK
AUDIO
RISER
EVAC
AUDIO
RISER
TALK AMP
‘
I
J&
/I
I
TALK AUDIO
Al ,n,rr INTERFACE Muy’” “:‘:
rn”Yl”
RISER
OUT
TRANSFORMER
AI #ml,.
13
DUAL AUDIO RELAY
BOARD (DABTS,
562-590)
OR
SIMULTANEOUS
AUDIO RELAY BOARD
(ETS, 562406)
+ V OUT FOR
AMP TBL; TO DABT
OR ET MONITOR POINT
FOR TROUBLE REPORT
EVAC AMP
IN DABT
OR ET
CARINFT
I J
I I
_--_
AUUK
d-J II
+ V OUT FOR \c
- “-‘-I SIGNAL OUT
TO AMP TBL; TO DABT EVAC
OR ET MONITOR POINT AUDIO
DUAL AUDIO RELAY FOR TROUBLE REPORT RISER
BOARD (DABTS, ml1
--.
562~i90)
OR
SIMULTANEOUS
AUDIO RELAY BOARD
(ETS, 562-506)
Dual Amplifier Connectlons
FIGURE 12
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The ET (Figure 13)
The ET in a Type 2 application is shown in Figure 13. The dual channel audio equipment used in the Type 2 ET
cabinet is listed below.
l A dual 50W amplifier (2001-6063), one amplifier for each audio riser.
l Two audio interface transformers (2001-6056) one for each audio amplifier.
l One or more simultaneous audio relay I/O boards (562-508).
Figure 12 illustrates how the ET voice communications equipment is tied into each audio riser.
TALK REMOTE
AMPLIFIER WITH
AUDIO INTERFACE-
TRANSFORMER
EVAC REMOTE
AMPLIFIER WITH
AUDIO INTERFACE
TRANSFORMER
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CLASS A AUDIO FOR DUAL CHANNEL SYSTEMS
This section discusses how we provide Class A audio operation for 2120 dual channel audio systems.
To provide Class A operation, all we need do is add a Class A audio monitor (562-125, Figure 14) for each of
our audio risers. There are two versions of the Class A audio monitor; the only difference between the two is the
way in which they are mounted. Both Class A audio monitors mount in the SCC cabinet as shown in Figure 15.
Class A Audio Monitor, 562-l 25
FIGURE 14
Figure 16 illustrates in block diagram form how the Class A monitor works. (For clarity, only one audio riser is
shown.) Each audio monitor simply “looks at” the end of its audio riser to ensure that the audio signal is being
received by all remote amplifiers. A break in the audio riser results in a loss of audio at the audio monitor, and
so its internal relay (Kl) simply deenergizes to allow the audio signal to be fed from both ends of the audio riser.
Thus, all remote amplifiers still receive the audio signal. Local BT monitor point 3 is used to supervise the audio
monitors and report Class A activation.
The interconnections for each Class A audio monitor are shown in Figure 17.
16
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