FSR ML-116 User Manual

FSR

ML-116

ROOM COMBINING SYSTEM

INSTALLATION

MANUAL

244 Bergen Boulevard, West Paterson, NJ 07424 Tel [phone] Fax [phone]

E-Mail [e-mail] Web www.fsrinc.com

47825 LIT1016B

ML-116 INSTALLERS MANUAL

CONTENTS

Introduction......................................................................................... 5

Unpacking............................................................................................ 6

Photograph of System Components.................................................. 7

Equipment Placement......................................................................... 8

Grounding............................................................................................ 8

System Block Diagram........................................................................ 9

Overall View of the System Components.......................................... 11

• Wallplate

• ACU

• Monitor/VU Panel / Monitor/VU Hookup

System Specifications.......................................................................... 16

Audio Connector Wiring.................................................................... 19

Cabling................................................................................................. 20

• Audio

• Control

• Wallplates

System Configuration......................................................................... 22

Dip Switch / Jumper Settings............................................................. 23

• ACU
CPU Card

RA2 Cards

•Wallplates

• Map Panel

Adjustments......................................................................................... 30

Paging System Operation................................................................... 32

Head Table Operation......................................................................... 33

Facility Manager Panel Operation.................................................... 34

Multiple ACU's.................................................................................... 37

Remote Map and Monitor Panels...................................................... 40

Audio / Lighting Systems Intergration.............................................. 41

Map Panel Status Interface................................................................ 42

FSR

ML-116 INSTALLATION DATA

INTRODUCTION

The design of the ML-116 system takes advantage of current technology to provide a blend of reliabil­ity, ease of use, flexibility, and reasonable cost. Designed for Hotels and Conference Centers with
divisible, multi-use meeting rooms, the ML-116 unifies the audio system of each room being joined
together with the touch of a button. Each control panel, speaker, amp, etc. will automatically operate as
one sound system. Any number of rooms (up to 16 per system) can be combined in any number of
groups. Provided custom software allows the system to be tailored to specific system requirements.

The ML-116 eliminates the need for skilled operators and can be used by staff members with minimum
instruction. The combining can be controlled from multiple locations depending on the system op­tions, and specific functions can be controlled from each room. The quality of the sound system is not
compromised by this system. Built-in safeguards prevent system failure due to misuse or failure of one
component.

The entire ML-116 system includes:
o ACU Audio Control Unit (base ML-116 chassis)
o PSA Power Supply
o Wallplates One per room
o MLH-8/16/24/32 Head Table Speaker Controls (optional)
o MAP Graphic Map Panel (optional)
o MON Monitor/VU Panel (optional)
o FMP Facility Manager Panel Interface (optional)
o AUD Remote Audio Monitoring (optional)
o RMAP Remote Map Panel (optional)
o RMON Remote Monitor Panel (optional)
o TC Remote Map and Monitor LCD Touch Panel (optonal)
o CNTL Control System Interface (optonal)
o INT Map Panel Status Interface (optonal)
o LU Lutron® Lighting Interface (optonal)
o IM / UM Installation Manual / User Manual
In each room a wallplate controls music and local input functions (local input on/off, room mixer

enable, music select, and volume up/down switches for local input and music.) A bar graph display is
provided for local input and music.

The security key switch prevents unauthorized control of the system. Dip switches inside the Audio
Control Unit determine whether the key switch interlocks all the wallplate functions, microphone func­tions only, or no wallplate functions.

The system is shipped in a default setting which will permit instant operation of the system in its usual
configuration. Please refer to the Dip switch/Jumper settings for pertinent details on the switch func­tions.

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FSR

ML-116 INSTALLATION DATA

UNPACKING

Your ML-116 system should contain the following components;

• ACU (audio control unit) This is the large unit and may have the map panel, if
ordered, on the front.

• ML-PSA ( large power supply)

• Wall Plates Room control panels, one for each room in the system. Depending on the
order either 2 or 3 gang wallplates will be shipped. On some installations two
wallplates may be required per room.

• If head tables were ordered you should have an HTBC card, 1-4 HT-8 cards, power supply,
and one or two 19 inch TRAC-BRACs depending on the number of HT-8
cards. Each HT-8 card will handle up to 8 Head Table locations.

• If the Monitor/VU panel was ordered you should have the Monitor Panel and ribbon
connecting cable along with the Monitor Relay Card mounted on a 19 inch
TRAC-BRAC.

• If the Facility Manager Panel was ordered you should have an FM-INT Interface Unit, the
RS-232 interconnect cable, a 3.5" diskette, and a power supply. (*)

• If the Remote Audio feed was ordered you should have an enclosed audio speaker along
with special relay cards (116-MNRL and 116-MNP) mounted on a 19 inch
TRAC-BRAC. (*)

• If the Remote Map Panel was ordered you should have the R-MAP Panel with its power
supply.

• If the Remote Monitor Panel was ordered you should have the R-MON Panel which will
mount on top of the R-MAP Panel.

• If the Lutron lighting interface was ordered then you should have the ML-116-INT & power
supply unit.

• An installation Manual.

• A users Manual.

(*) With multiple ML-116 systems with the FMP or AUX option(s) some duplicate compo

nents are not provided

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FSR

ML-116 COMPONENTS

AUDIO CONTROL UNIT (GENERIC LAYOUT SHOWING 16 ROOMS)

ACU

ML-116 INSTALLATION DATA

POWER SUPPLY
ML-PSA

AUDIO SPEAKER

FM-INT UNIT

WALL MOUNT
TRANSFORMER

2 GANG WALLPLATES

OPTIONAL SUBSYSTEMS OF THE ML-116 SYSTEM

MONITOR VU PANEL

MONITOR RELAY CARD

HEAD TABLE
RELAY CARDS

HEAD TABLE
BREAKOUT CARD

2

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FSR

ML-116 INSTALLATION DATA

EQUIPMENT PLACEMENT

The ACU is mounted first. It should go in the audio rack at eye level usually 55 inches from the
finished floor. The MONITOR VU panel is mounted next and it usually goes immediately above the
ACU.

The ML-PSA is mounted in the same rack as the ACU. It mounts in the rear of the rack usually at
waist level.

The Monitor Relay card, already mounted on the TRAC-BRAC is mounted directly behind the
power amps on the rear rack rails.

If head tables were ordered then the HTBC and HT-8 cards, mounted on a TRAC-BRAC are located
at the rear of the rack behind the power amplifiers.

When the Facility Managers software, with audio monitoring (ML-116-AUD), is ordered then
another TRAC-BRAC with a ML-116-MNRL & MNP is also installed at the rear of the rack close to
the Monitor Relay Card. This completes the rack mounting of the ML-116 components.

The wallplates are mounted next. At least one wallplate is mounted in each room. In larger rooms
two wallplates may be required. They mount in a standard 2 gang electrical box (min. depth 3
inches) and are connected to the cable already pulled. Refer to the section on wallplates to determine
proper hook-up.

If the Facility Managers software with audio monitoring (ML-116-AUD) was ordered then the
enclosed audio speaker, as well as the FM-INT small desk top mounted box, are located in the
Managers Office.

If the Remote Map and/or Monitor Panel was ordered then this unit will be mounted, most likely, in
a service corridor and will wired back to the rack mounted ACU.

If the lighting interface was ordered then the ML-116-INT) unit would be mounted in the lighting
dimmer rack location

GROUNDING

It is strongly recommended that in any rack setup to ensure appropriate power application as
well as superior power surge protection that the FSR Power Conditioning and Sequencing (SPC)
System be utilized.

The ML-116 System, along with the associated mixers, equalizers, and power amplifiers, is a high gain
audio system of some complexity and requires a proper grounding procedure be followed.

The ML-116 equipment has separate audio, digital, and chassis grounds. In some cases you may need
to connect the two grounds. The digital and audio grounds come together on the regulator card located
inside the audio control unit on the left side of the chassis. There is a ground terminal and when it is
connected to a banana jack on this same card the digital and audio grounds will be tied to the chassis
ground.

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FSR

ML-116 INSTALLATION DATA

WALLPLATE GROUNDING CONSIDERATIONS

In order to prevent damage to the ML-116 system from ESD (Electro-Static Discharge), it is incum­bent upon the installer to carefully consider the grounding of the system. Since the ML-116 is a
digital/audio hybrid, proper ground is essential to maintaining audio quality while preventing dam­age the electronic circuitry.
The metal faceplate of the ML-116 wallplates must be grounded to prevent damage due to ESD
events. The best way to guard against ESD damage in any system is to return the charge to ground by
the shortest path possible. A direct connection between the faceplate and conduit ground is the most
desirable method. At the same time, the DC ground of the system must be kept isolated from con­duit ground, or ground loop noise will result.
The ML-116 wallplates are provided with either a ground wire or a ground jumper to allow for
grounding of the metal faceplate. If the electrical mounting boxes are already grounded, the ground
wire must be insulated or the jumper disconnected to prevent a ground loop. If the electrical box is
not grounded, connect the ground wire to the SHIELD terminal of wallplates so equipped. On
wallplates that have a ground jumper, ensure that the jumper is installed. In systems that do not have
grounded electrical boxes, the ESD ground path is through the shield conductor of the recommended
cable, through the ML-116’s CPU card, and to the chassis of ML-116 rack unit.

ML-116 SYSTEM BLOCK DIAGRAM

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ML-116 INSTALLATION DATA

A.........There will be two types of wallplates available for use in the ML-116 system; membrane

and LCD. Both control all wallplate functions. These functions include Music Selection,
Room Mixer Enable, Music Enable and Volume, and Local Input On/Off and Volume.

B.........Each room in the system can have two wallplates if desired.

C.........The ACU (audio control unit) is the main unit of the system. It routes the selected music,

adjusts levels, combines rooms, handles communications (between wallplates, map, and
monitor panels), and can talk to other ML-116s. It also controls the paging function.

D.........The HT-8 is a PC board assembly with 8 relays to control the speaker feeds to the head

table locations. These cards are driven by the HTBC board.

E........ The PSA is the Power Supply for the ML-116 system.

F........ The Monitor/VU Panel permits an operator to monitor the audio from any selected room.

It also permits the operation of any wallplate function from this same panel.

G........ The Monitor Relay Card is a PC board assembly 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 breakout that accepts power and signal input and drives

the HT-8 cards.

These three remaining items are described and shown further on in this document.

K....... This is the R-MAP unit that repeats the data on the rack map panel (see page 40)

L....... This is the R-MON unit that repeats the data on the rack monitor panel (see page 40)

M...... This is the ML-116-INT unit to handle the lighting interface (see page 42)

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FSR

ML-116 INSTALLATION DATA

OVERALL VIEW OF SYSTEM COMPONENTS

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ML-116 WALLPLATE 2 Gang

MEMBRANE TYPE

page 11

FSR

ML-116 INSTALLATION DATA

ML-116 WALLPLATE 3 Gang
MEMBRANE TYPE

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FSR

ML-116 INSTALLATION DATA

ACU Description

The Audio Control Unit is the main unit of the system. It routes
the selected music, adjusts levels, combines rooms, handles
communication (between wallplates, map, and monitor 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. All RA2 modules are fully interchangeable. The mod­ule identifies the two rooms by an ODD and EVEN nomen­clature. 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...This 3 pin connector receives the audio signal
from the ODD room's mixer.
B...This 3 pin connector receives the audio signal
from the EVEN room's mixer.

C...This 3 pin connector provides the audio out­put to the ODD room's amplfier or EQ.
D...This 3 pin connector provides the audio out­put to the EVEN room's amplfier or EQ.
E...These four 3 pin connectors receive the back­ground music signals from the facility supplied
sources. The source number over each connector
corresponds to the identification called out on the
room wallplates.
F...This trim control provides limited volume ad­justment for each background music source.
G...This 3 pin connector accepts the page audio
signal from the facilities page audio feed. A level
adjust is provided for this input.
H...This 3 pin connector may be used to provide
limited combining capability among multiple ML­116 systems.

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FSR

ML-116 INSTALLATION DATA

J...The ML-116 regulator module accepts unregu­lated DC voltages from the ML-116 PSA, power

supply. A plugable connection is provided to con­nect to the power supply. LED indicators are pro­vided to monitor the power within the unit.
K - L...The HTP module provides control inter­face to support paging capabilities. It also provides
the control interface for the head table speaker
switching. Refer to sections titled Paging and Head
Table operation for additional details
M...Com 1 and Com2 update serial ports (DB-9 x

MONITOR/VU PANEL

ENABLE SWITCH
MUST BE DEPRESSED
TO OPERATE ANY
SWITCH ON THE
ROOM PANEL

DUPLICATES THE ROOM
WALLPLATE

2 male)
N...Wallplate/monitor interface connectors. These
four points are where all room wallplates are con­nected. The monitor panel, the remote map/moni­tor and the ML-116-INT interface unit are con­nected to one of these points. Four points are pro­vided to ease system installation.
P...Facility managers panel interface connector.
Refer to section on this topic for additional details.

MONITOR
SPEAKER VOLUME
CONTROL

VU METER

SELECTS THE ROOM OR EX­TERNAL ZONE TO BE MONI­TORED

SPEAKER

Monitor/VU Panel Installation

While the Monitor/VU panel is optional, it is recommended for all systems comprising more than six
rooms. The installation of this feature requires the Monitor Relay Card in addition to the above
panel. This relay card is supplied mounted in an FSR TRAC-BRAC simplifying the rear rack mount­ing of this card.

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