FSR ML-116 Quick start guide

244 Bergen Boulevard, West Paterson, NJ 07424 Tel [phone] Fax [phone]
E-Mail [email protected] Web www.fsrinc.com
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INTRODUCTORY
NOTES
on the
ML-116
THE NEW ROOM COMBINING
SYSTEM

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INTRODUCTION
Designed for hotels and conference centers with divisible, multi-use meeting rooms, the ML-116 Ball-
roomCombiningSystemunifiestheaudiosystemofeachroombeingjoinedtogetherwithasimpletouch
of a button.
The ML-116 is the latest, enhanced version of the popular ML-112A .A microprocessor-based system,
the ML-116 is capable of combining up to sixteen rooms in multiple configurations.Contractors appreci-
ate the flexibility of the ML-116 which can be operated with a variety of mixers, equalizers and power
amps.
Hotel and meeting-center operators give high marks to the system's dependability and operation. Staff
require little training to competently use the equipment.
Flexible and dependable sound systems are increasingly important for conference planners looking for
waysto make their events stand out. The ML-116fulfills the hotel and meeting-centers needs and clients'
wishes and have been designed so, if desired, even the guests can play an active part in its operation.
FEATURES
• Provides for 4 background music sources.
• Capable of combining up to 16 rooms of audio with the touch of a button.
• Can combine up to 4 ML-116's to control 64 rooms with full functionality.
• Optional Facility Manager panel permits operation of the system from a standard computer in any
locationwithinthefacility.
• Facility Manager Panel allows the mixing of non-adjacent rooms.
•Can interface with lighting systems.
•Continuouslyadjustable ramping bargraph volumecontrol on each wallplateforboth microphone
and background music.
• Membrane type wallplates enhance room's decor.
• Operates with any mixer.
•Complete paging capability.
• Total reliability; the ML-116 builds on the 7 year reputation of its predecessor, the ML-112A, in its
engineering design, proven components, quality workmanship, and responsible operation.

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Page 4
2 GANG ML-116 WALLPLATE
OVERALL VIEW OF SYSTEM COMPONENTS

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3 GANG ML-116 WALLPLATE

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ACU Description
The Audio Control Unit is the main unit of the system. It
routes the selected music, adjusts levels, combines rooms,
handlescommunication(betweenwallplates,map,andmoni-
tor panels), and can route audio to other ML-116s. It also
controls the paging function.
Refer to Figure 1 for the following discussion.
The ACU RA2 module provides the audio interface for two
rooms.AllRA2modulesarefullyinterchangeable.The mod-
ule identifies the two rooms by an ODD and EVEN nomen-
clature. The numbers that appear on the top of the ACU
module slot refer to the room's number in the system. These
numbers also correspond to the numbers in each room drawn
on the map panel.
A...This3pin connectorreceivestheaudiosignalfrom
theODD room'smixer.
B...This3pinconnectorreceivestheaudiosignalfrom
theEVEN room'smixer.
C...This3pin connector provides the audio output
totheODDroom'samplfierorEQ.
D...This3pin connector provides the audio output
totheEVENroom's amplfier or EQ.
E...These four 3 pin connectors receive the back-
groundmusicsignalsfromthefacilitysuppliedsources.
Thesource numberovereachconnectorcorresponds
totheidentificationcalledoutonthe roomwallplates.
F...Thistrimcontrolprovides limitedvolumeadjust-
mentfor eachbackgroundmusicsource.
G...This3 pin connector accepts the page audio sig-
nalfromthefacilitiespageaudiofeed.Aleveladjustis
providedforthisinput.
H...This3pin connectormaybe usedto providelim-
itedcombiningcapabilityamongmultipleML-116sys-
tems.

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Page 7
SELECTS THE ROOM OR
EXTERNAL ZONE TO BE
MONITORED
VUMETER
MONITOR SPEAKER
VOLUMECONTROL
DUPLICATESTHE ROOM PANEL
ENABLESWITCHMUST
BE DEPRESSED TO
OPERATE ANYSWITCH
ONTHEROOM PANEL
SPEAKER
MONITOR/VU PANEL
J...TheML-116regulatormoduleacceptsunregulated
DCvoltagesfromthe ML-116 PSA, power supply.
Aplugableconnectionisprovidedto connect to the
powersupply. LEDindicatorsareprovided tomoni-
torthe power withintheunit.
K-L...The HTP module provides control interface
to support paging capabilities. It also provides the
controlinterfacefortheheadtablespeakerswitching.
Referto sectionstitledPagingandHeadTableopera-
tionforadditionaldetails
M...Test mode dip switches and test mode indica-
tors. These are used at the factory and are not to be
operatedin thefield.
N...Wallplate/monitorinterfaceconnectors.Thesefour
pointsarewhere all room wallplates are connected.
Themonitorpanel,theremote map/monitor and the
ML-116-INT interface unit are connected to one of
thesepoints.Four pointsareprovided toeasesystem
installation.
P...Facilitymanager panelinterface connector. Refer
tosection onthistopic foradditionaldetails.

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ML-116 SYSTEM BLOCK DIAGRAM
A......... There are two types of wallplates
availableforuseintheML-116system,membrane
andLCD. Bothcontrolallwallplatefunctions. These
functionsinclude MusicSelection,RoomMixer En-
able, Music Enable and Volume, and Local Input
On/Off andVolume.
B.........Each room in the system can have two
wallplatesif desired.
C......... TheACU (audio control unit) is the
main unit of the system. It routes the selected mu-
sic, adjusts levels, combines rooms, handles com-
munications (between wallplates, map, and moni-
tor panels), and can talk to other Ml-116s. It also
controls the paging function.
D......... The HT-8 is a PC board assembly
with8relaysto control the speakerfeedstothehead
table locations. These cards are driven by the
HTBC board.
E........ The PSA Power Supply for the ML-116
system.
F........ The Monitor/VU Panel permits an operator
tomonitortheaudiofromanyselectedroom.Italso
permitstheoperation of anywallplatefunctionfrom
this same panel.
G........ The Monitor Relay Card is a PC board as-
sembly of relays that mounts close to the power
amps and provides the audio feed for the monitor
panel.
H.........This wall plug-in transformer powers the
HTBC and HT-8 cards.
J........ The HTBC Board is essentially a break-out
that accepts power and signal input and drives the
HT-8 cards.

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Page 9
SYSTEM SPECIFICATIONS
Audio Control Unit (ACU)
AudioConnections: RA2Module (one per tworooms)
Inputs:electronicallybalanced 20KImpedance(unbalanced 10K),3pinscrew termi
nals
Outputs:600ohm transformercoupled(balanced) 3pin screwterminals
AudioConnections:MPModule(music/pagemodule)
Inputs:600 ohmtransformercoupled(balanced) 3pin screwterminals
SystemLeveladjustrange:+7dBto-20dB
InputTrim LevelAdjustRange:(Page and Musicinputleveladjust trimpots)+2.5to -7.5 dB.
Tielineoutput:600ohm transformercoupled(balanced) 3pin screwterminals
AudioGain:
Music(with respectto inputlevel)
Volume Reset: 0 dB +/- 1dB
Full Down: -18 dB +/- 1 dB
Full Up: +4 dB +/- 0.5 dB
LocalInput (withrespecttoinputlevel)
Volume Reset: 0 dB +/- 1dB
Full Down: -18 db +/- 1 db
Full Up: +4 db +/- 0.5 db
Page Input: 0 db +/- 1 db
MaximumOutputLevel:+20dBm
NoiseFloor: -75dBm typical.Conditions:Full mix,Mixer Enableson, LocalInputsoff,
inputopen, outputs600ohm terminated
-70 dBmtypical.Conditions:Fullmix,Mixer Enableson,Local Inputson,
Volumesetto 0 dB. inputsopen,outputs600ohm terminated
Crosstalk: -85dBtypical. Conditions:Nomix,Mixer Enableson,LocalInputs on,
Volumesetto 0 dB.+10dBm1KHz. signalintoanyinput, measure anyoutput
-80dB typical.Conditions:Full mix,MixerEnables on,LocalInputson,
Volumesetto 0 dB. +10dBm1KHz.signal into anymusicorpage input.
Size: 19 incheswide, 14 incheshigh(8RU),13 inches deep
Mounting: Standardrack mounting,usuallylocated55inchesabovefinished floor.

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Page 10
Wall Plates
Size: 6 1/4incheswide by 41/2incheshigh, approximately 2.5inchesdeep
Mounting: fitsstandard2 or 3 gangelectricalwallboxwith four or6screws
Switches: membrane
Connector: 5 pin connector
Cable: West Penn #3651 or 3751 (see page 13 for details)
Power Supply (PSA)
Size: 3 1/2inch high,6inchesdeep,10incheslong(approximately)
Mounting: rearrackrail
Inputpower: 105 to 132 VAC, 50/60 Hz, 100 watts
Output: +15volts,+25 volts, -25voltsnominal
Fuse: 2 amp
Switch: poweron/off (lightedrockerswitch)
Interconnect: 8 footcablesupplied,5conductorstranded
Indicators: three LEDindicators,onefor eachofthe unregulatedvoltages
MON Monitor/VU Panel Assembly (optional)
Monitor/VUPanel
Input: 70Volt speakerlevel
Size: 19 incheswide, 5 1/4incheshigh(3RU),4 1/2 inchesdeepoverall
Mounting: standardrackrails
MonitorRelayCard(suppliedwiththe Monitor/VU card)
Size: 3 1/4incheswide, 9 1/2incheslong, 1 inchhigh,comesalready mounted ina
19inchFSRTRAC-BRAC
Mounting: rearrackrails
MLH Head Table Speaker Assembly (optional)
HeadTableBreakoutCard (HTBC)
Size: 3 1/4incheswide, 23/4incheslong, 1/2 inchhigh
Power: HT-PS supply provided
HeadTableRelay Card (HT-8)
Size: 3 1/4incheswide,7 1/4 inches long,1inchhigh,canhave up to fourofthese
cardspersystem
Mounting: rearrackrails,boththeHTBCandtheHTcardcomealreadymountedina19
inchFSRTRAC-BRAC
FM Facility Manager Control (optional)
FacilityManagers Panel (FM-INT)
Size: an enclosedbox 3 1/2incheswide,5inches long, 11/2incheshigh
Mounting: sitsonthe managers desk
Power: awall mountedpowersupply