Altair EF-200 Owner's manual

Brand: Altair

Model: EF-200

Type: Owner's manual

EF- 2 0 0

DUAL CHANNEL MASTER STATION

E- 2 0 0 SERI ES I N TERCO M SYST EM

OWNERS MANUAL

AUDIO ELECTRONICS DESIGN

AUDI O ELECTRONI CS DESI GNAUDI O ELECTRONI CS DESI GN

AUDI O ELECTRONI CS DESI GN

EQUIPOS EUROPEOS ELECTRÓNICOS, S.A.L

Avda. de la Industria, 50. 28760 TRES CANTOS-MADRID (SPAIN).

34-91-761 65 80 34-91-804 43 58 altair@altairaudio.com

www.altairaudio.com

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-200 DUAL CHANNEL MASTER STATION

1. I N T RO D U CT I O N .................................................................................................................................................................................. 3

2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS.................................................................................................... 4

FRON T PAN EL ...................................................................................................................................................................................4

REA R PA N EL ...................................................................................................................................................................................... 5

3. WORKING PRECAUTIONS................................................................................................................................................................ 6

4. INSTALLATION ...................................................................................................................................................................................6

UNPACKING .....................................................................................................................................................................................6

MOUNTING....................................................................................................................................................................................... 6

CHANGING THE FUSE.....................................................................................................................................................................6

CONNECTING TO THE M AINS........................................................................................................................................................ 7

EM ER G EN C Y B A T TER Y PL A CEM EN T .............................................................................................................................................. 7

PROGRAM INPUT CONNECTION ................................................................................................................................................... 7

UNBALANCED INPUT:

..................................................................................................................................................................8

BALANCED INPUT:

.......................................................................................................................................................................9

PA OUTPUT CONNECTION .............................................................................................................................................................9

UNBALANCED OUTPUT:

.............................................................................................................................................................10

BALANCED INPUT:

...................................................................................................................................................................... 11

PA OUTPUT RELAY CONNECTION ................................................................................................................................................ 11

EX T ER N A L U N I TS C O N N EC T I O N ...................................................................................................................................................12

MULTICHANNEL SYSTEM CONNECTION (MASTER-SLAVE).......................................................................................................13

CONNECTION OF INTERCOM SYSTEM S WITH M ORE THAN 5 0 BELTPACKS.........................................................................15

5. OPERATION.......................................................................................................................................................................................15

HEADSET CONNECTION.................................................................................................................................................................15

HEADSET VOLUME CONTROL.......................................................................................................................................................16

PA- M IC OUTPUT + RELAY CONTROL SWITCH ...........................................................................................................................16

BU Z Z ER ON / OFF SW ITCH ..............................................................................................................................................................16

REM O TE M U TE A LL M I C S AN D BU Z Z ER SW I TC H ES ..................................................................................................................17

CALL SWITCH...................................................................................................................................................................................17

MIC ON/OFF/PUSH TO TALK SWITCH.........................................................................................................................................17

SIDETONE CONTROL.......................................................................................................................................................................18

LI N E A A N D B LI S TEN BA LA N CE C O N TRO L .................................................................................................................................18

PROGRAM INPUT LEVEL CONTROL..............................................................................................................................................18

PROGRAM SENDING TO LINES A/ B SWITCHES .........................................................................................................................18

PROGRAM TO H EADPHONES CONTROL....................................................................................................................................18

LI N ES A A N D B LI N K S W I TCH ........................................................................................................................................................18

SLAVE CHANNELS LINK SWITCH ..................................................................................................................................................19

EM ER G EN C Y SW I TC H ( BA T TERY O PERA T I O N ) ............................................................................................................................19

6. OPTIONS............................................................................................................................................................................................19

PROGRAM INPUT TRANSFORM ER (IT- DA) ..................................................................................................................................19

PA OUTPUT TRANSFORM ER (OT- DA) ..........................................................................................................................................19

SECURITY COVER (TP- 1)..................................................................................................................................................................19

KEY LOCKED SECURITY COVER (TS- 1) ..........................................................................................................................................19

7. SPECIAL OPERATIONS.....................................................................................................................................................................20

PROGRAM INPUT TRANSFORM ER (IT- DA) .................................................................................................................................20

OUTPUT TRANSFORMER (OT- DA)................................................................................................................................................20

OPENING THE INTERCOM LINE TERMINAL IMPEDANCE...........................................................................................................21

CHANGING THE M IC GAIN ...........................................................................................................................................................21

PA OUTPUT CONFIGURATION ......................................................................................................................................................21

ACTIVATING THE M ICROPHONE PHANTOM POWER..............................................................................................................22

PROGRAM INPUT CONFIGURATION IN A M ULTICHANNEL SYSTEM (M ASTER- SLAVE) ......................................................22

CHANGING THE BUZZER LEVEL...................................................................................................................................................23

PROGRAM INTERRUPT WITH THE PA- M IC SWITCH CONFIGURATION .................................................................................23

CONFIGURATION OF THE M ULTIPURPOSE RELAY ACTIVATION ............................................................................................23

PROGRAM INTERRUPT WITH THE M IC SWITCHES CONFIGURATION ...................................................................................24

8. BLOCK DIAGRAM AND HOW IT WORKS.....................................................................................................................................25

9. REPAIR GUIDE..................................................................................................................................................................................27

10 . A P P LI C A T I O N EX A M P LE................................................................................................................................................................28

11. T EC H N I C A L S P EC I F I C AT I O N S ........................................................................................................................................................29

12 . W A RRAN T Y .....................................................................................................................................................................................30

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1. I N T RO D U C T I O N

Cong ratulation s on your p urcha se of th e ALTAIR dual channel master station EF - 2 0 0 of the

E- 2 0 0 series intercom system. There is a lot the characteristics that make of the ALTAIR E- 2 0 0 series

one of the most highlighted in the audio professional market, some are enumerated here:

The new ALTAIR E-200 SERIES add more features to our popular Espiral E-100 series, maintaining

compatibility. All the components in the system incorporate a microcontroller to implement different

tasks as Mic Killer, Remote all Buzzer switch-off, Mic Switch Latch or Push To Talk, Program Interrupt,

etc.

Re m o t e A l l M i c s w i t c h - o f f h e l p s t h e o p e r a t o r t o m a i n t a i n a l o w e r n o i s e c o n v e r s a t i o n i n n o i s y

environments. Also implemented is the remote All Buzzers switch-off feature to avoid undesired

audible CALL signalling during performances.

Th e M a s t e r St a t i o n u n i t p o w e r s a l l t h e Sy s t e m c o m p o n e n t s a n d i n c o r p o r a t e s n e w s p e c i a l f e a t u r e s

as System Expandability or Battery Operation.

System Expandability permits creating a multichannel (4, 6, or more channels) Intercom System by

using more Master Stations in a daisy chain arrangement. This feature enables freedom in the System

design and in-site future upgrades. Rental companies can benefit with lower component inventories.

Our new internal Battery operation permits short-time communications in difficult situations (= no

Po w e r ) o f e m e r g e n cy.

The ALTAIR EF-200 unit incorporates an internal worldwide voltage operation power supply that

powers all the system. In case of a short circuit on any point of the line, the unit shuts down with

automatic and instantaneous reset.

Befo r e b eg inn ing i t is i m p o r ta nt to r ea d this m a nu a l. Th is m anua l w ill h el p you to i nsta ll a nd use

your new intercom master station. It is very important to read it carefully, mainly the paragraphs

marked as NOTE, PRECAUTION and DANGER, for your security.

Sa v e t h e o r i g i n a l p a c k i n g , y o u c a n r e - u s e i t t o t r a n s p o r t t h e u n i t . NEVER SHIP THE ALTAIR EF-200

WITHOUT ITS ORIGINAL PACKING.

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-200 DUAL CHANNEL MASTER STATION

2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS

These are the switches, controls, adjustments and connectors that you can find in your ALTAIR intercom master station. The description and

explanation of each one will be found in the corresponding section.

FRO N T PA N EL

CALL SWITCH.

HEADSET CONNECTOR.

MIC ON/ OFF/PUSH TO TALK SWITCH.

SI D ETON E CON TROL.

HEADSET VOLUME CONTROL.

LIN E A A N D B LI STEN B A LA N C E C O N TROL.

PA - M IC OU TPUT + RELAY CON TROL SWITCH.

PROGRA M IN PUT LEVEL CON TROL.

BUZZER ON/ OFF SWITCH.

PROGRA M SEN DIN G TO LIN ES A/ B SWITCHES.

REM OTE M U TE A LL M I C S A N D B U Z Z ER SW ITCH ES. P RO G RA M TO H EA DP H O N ES C O N TRO L.

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-200 DUAL CHANNEL MASTER STATION

LIN ES A A N D B LI N K SW ITC H . EM ERG EN C Y SW I TC H ( B A TTERY OP ERA TI O N ) .

SLA VE C H A N N ELS LI N K SWI T C H .

POWER SWITCH.

REA R PAN EL

MAINS CONNECTOR AND FUSEHOLDER. PA OUTPUT CONNECTOR XLR-3-32.

BATTERY HOLDER. PA OUTPUT RELAY CONNECTOR JACK ¼ ” .

PROGRA M INPUT M IC/ LINE SELECTOR SWITCH. INTERCOM LIN E CON NECTORS XLR- 3 - 3 1 A ND

XLR-3-32.

PROGRA M IN PUT CONNECTOR XLR- 3 - 3 1.

MULTICHANNEL LINKS CONNECTORS FCC-68.

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3. WORKING PRECAUTIONS

Th e m a n u f a c t u r e r i s n o t r e s p o n s i b l e o f a n y d a m a g e t h a t c a n p o s s i b l y h a p p e n t o t h e i n t e r c o m

master station outside the limits of the warranty or those produced by not taking care with the

working precautions.

Mains voltage must be between the limits of the admitted power supply (90-264 VAC, 50-

60 Hz) and that the fuse must be the appropriate (2A slow blow type: T2A). Damage caused

by connection to improper AC voltage is not covered by any warranty.

DANGER: Inside the unit there are high voltages, do not open it. The unit does not

contain elements that could be repaired by the user. Whenever the intercom master

station is connected to the mains, it carries elements with high voltages. In order to

disconnect the unit completely, you must disconnect it from the mains.

CAUTION: Protect the unit from the rain and moisture. Ensure that no objects or liquids enter it. If

liquid is spilled into the unit, disconnect it from the mains and consult a qualified service technician.

Do not place the unit close to heat sources.

4. INSTALLATION

UNPACKING

Before leaving the factory, each intercom master station has been carefully inspected and

tested. Unpack and inspect the unit for any damage that may have occurred during shipment. If

any damage is found, does not connect the unit to the mains; notify the salesperson immediately;

a qualified service technician should inspect the unit.

Save the original packing, you could use if you need to transport the unit. NEVER SHIP THE

INTERCOM MASTER STATION WITHOUT ITS ORIGINAL PACKING.

MOUNTING

It is always recommended to mount the unit in rack, either for mobile or fixed installations, for

protection, safety, aesthetics, etc.

The ALTAIR EF-200 is designed for standard 19" rack mounting, and takes up 1u high rack

space.

CHANGING THE FUSE

This unit incorporates an internal, worldwide voltage operation power supply, and it is

prepared to work from 90 to 264 VAC, 50-60Hz.

Make sure that the unit is disconnected from the mains.

In the unit rear panel are placed the mains connector, the mains selector

and the fuse holder. The box bellow this mains connector is called fuse holder.

Ta k e o u t t h e f u s e h o l d e r .

After extracting the fuse holder, the fuse will appear, take out it and change

for the new one.

Insert the fuse holder into the mains connector again.

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Make sure that the fuse is the right one: 2A slow blow type - T2 A

CAUTION: Always make sure after changing the fuse, that it is the right one.

CONNECTING TO THE M AINS

The connection of the intercom master station power supply to the mains takes

place by a standard cord included in the box.

Make sure that the unit power switch is at 0 position (turned off).

Insert the fema le I.E.C. connector of the tripola r cable into the unit power supply

male connector, placed at the rear panel.

Insert the male connector of the tripolar cable into the mains plug.

Tu r n o n t h e u n i t p o w e r s w i t c h . In t h a t m o m e n t t h e C A LL LED i n d i c a t o r

will light slightly, indicating that the unit is turned on.

CAUTION: Make sure that the mains voltage is the correct as well as their fuse is the right one.

EM ERG EN C Y B A TT ER Y PLA C EM EN T

The central unit has a lodging for a 9VDC battery (6LR61 type) located in the rear panel, that

allows the system operation in no power difficult situations during a short period of time. The use of

alkaline batteries is recommended.

Make sure that the unit power switch is at 0 position (turned

off).

In the unit rear panel is placed the battery holder. Take out

the battery holder, pushing up and toward you with a coin

Insert the battery into the battery holder, taking into account

the polarity that comes indicated inside the battery holder.

Insert the battery holder into its rear panel plastic box.

NOTE: The battery power has an internal fuse, located inside the unit, in order to protect the unit of

excessive currents in the battery. If it is necessary to change the fuse, make sure that the device is

disconnected from the mains, and open the top cover according to the indications of the section

special operations. The fuse is placed in the top right corner, just beside the battery holder. After

changing make sure that it is the adequate T1A (1 ampere, slow blow type).

PROGRAM INPUT CONNECTION

Th e i n t e r c o m m a st e r s t a t i o n p r o g r a m i n p u t s i g n a l i s c a r r i e d o u t t h r o u g h a X LR- 3 - 3 1 f e m a l e

connector. The input connection is balanced, with a nominal impedance of 40 KΩ (20 KΩ

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unbalanced). The next list shows the input pins correspondence as A.E.S recommends:

PROGRAM INPUT - XLR- 3 - 3 1

PIN 1

0 V

PIN 2 HOT (+ )

PIN 3

COLD (- )

Th e i n p u t c o n n e c t i o n d e p e n d s o n t w o f a c t o r s , t h e f i r s t i s t h e t y p e o f i n p u t s i g n a l b a l a n c e d o r

unbalanced, and the second the ground configuration of the sound source (floating or ground-

referenced). The next pictures show some of the different possibilities of connection, relying on the

type of input signal, balanced or unbalanced and according to the ground configuration of the

equipment (floating or ground-referenced).

In the next diagrams, we use the following symbols:

Sound source with mains cord without ground connection.

Sound source with mains cord with ground connection.

Sound source with the EARTH-LINK OFF.

Sound source with the EARTH LINK ON.

UNBALANCED INPUT:

Th i s t yp e o f c o n n e c t i o n w i l l b e u s e d w h e n t h e s o u n d s o u r c e d o e s n o t p r o vi d e b a l a n c e d

output. If it’s possible it is better using the connection type 1.

1) U s i n g t w i n - l e a d s h i e l d e d c a b l e :

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2) Using single conductor shielded cable:

BALANCED INPUT:

PA OUTPUT CONNECTION

Th e PA o u t p u t s i g n a l i s c a r r i e d o u t t h r o u g h a X LR- 3 - 3 2 m a l e c o n n e c t o r . Th e o u t p u t i s

balanced, with a nominal impedance of 100 Ω. The next list shows the input pins correspondence

as A.E.S recommends:

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PA OUTPUT - XLR- 3- 32

PIN 1

0 V

PIN 2 HOT (+ )

PIN 3

COLD (- )

Th e o u t p u t c o n n e c t i o n d e p e n d s o n t w o f a c t o r s , t h e f i r s t i s t h e t y p e o f i n p u t s i g n a l b a l a n c e d o r

unbalanced, and the second the ground configuration of the sound destination unit (floating or

ground-referenced). The next pictures show some of the different possibilities of connection,

relying on the type of output signal, balanced or unbalanced and according to the equipment’s

ground configuration (floating or ground-referenced).

In the next diagrams, we use the following symbols:

Sound destination unit with mains cord without ground connection.

Sound destination unit with mains cord with ground connection.

Sound destination unit with the EARTH-LINK OFF.

Sound destination unit with the EARTH LINK ON.

UNBALANCED OUTPUT:

Th i s t yp e o f c o n n e c t i o n w i l l b e u s e d w h e n t h e s o u n d d e s t i n a t i o n u n i t d o e s n o t p r o v i d e a

balanced input. If it’s possible it is better using the connection type 1.

1) U s i n g t w i n - l e a d s h i e l d e d c a b l e :

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2) Using single conductor shielded cable:

BALANCED INPUT:

PA OUTPUT RELAY CONNECTION

Th e P A o u t p u t r e l a y c o n n e c t i o n a l l o w s t o c a r r y o u t a c o n t r o l o n a n e x t e r n a l a p p l i c a t i o n e ve r y

time the PA output is activated (connection with unidirectional transmission systems - radio

stations. Lights turn on/ off, motors, etc.).

Th e m u l t i p u r p o s e r e l a y c o n n e c t i o n t a k e s p l a ce w i t h a JA C K ¼ ” c o n n e c t o r . Th e n e x t l i s t s h o w s

the multipurpose relay PIN correspondence with the JACK ¼":

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RELAY JACK ¼ ”

COM M ON TIP

NORMALLY CLOSE RING

NORMALLY OPEN SLEEVE

In the factory configuration, the PA output relay is activated with the PA output switch, but the

multipurpose relay can be configured to be activated upon activating the channel A and/or B

microphone or upon activating the remote mute — buzzers signal. In order to obtain more

information, consult the special operation section.

NOTE: The NORMALLY CLOSE terminal is joined with the COMMON terminal when the PA output is

not activated, and the NORMALLY CLOSE is joined with the COMMON terminal when the PA output

is activated.

EX T ER N A L U N I TS C O N N EC T I O N

Th e e x t e r n a l u n i t s c o n n e c t i o n t o t h e m a s t e r s t a t i o n i s c a r r i e d

through twin-lead shielded cable and XLR-3-31/ XLR-3-32

connectors. Each master station channel provides two XLR-3-31

connectors and a XLR-3-32 connector wired internally in parallel

mode.

Th e n e x t l i s t s h o w s t h e s i g n a l d i s t r i b u t i o n i n t h e p i n X LR

connectors.

XLR-3-31/ XLR-3-32 — INTERCOM LINE

PIN 1

GND

PIN 2 + VDC

PIN 3

SI GN A L

Certa in rul es ha ve to b e follow ed w hen insta lli ng th e ca b les o f a n i ntercom system . This is to

avoid ground loops and to minimize the power loss and the possible effect of electromagnetic

fields.

Do not connect the XLR pin 1 to the XLR metal housing or to metal wall boxes to avoid ground

loops. The ground loop could increases notably the system background noise.

Do not close the intercom line connection (avoid closed loops). Each intercom line leaves from

the master station towards the remote stations, but it does not return to the master station. If the

connection is closed, a ground loop with the increase from the system noise will take place.

Use high quality cables and minimize its longitude. The DC resistance of a low quality cable or

very long affects to the power consumption, the channels crosstalk and the system frequency

response.

Place the master station the closest possible to the maximum consumption zone; that is to say

to the zone in which more external units are placed.

Th e n e x t p i c t u r e s h o w s t h e h a b i t u a l c o n n e c t i o n o f a n i n t e r c o m s y s t e m f o r m e d b y f o u r

beltpacks units (two for each channel) and a master station EF-200. In the section APPLICATION

EX A M PL ES a r e s h o w n a n o t h e r t y p e o f c o n n e c t i o n s .

IP.

RI N G.

SLEEVE.

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MULTICHANNEL SYSTEM CONNECTION (MASTER-SLAVE)

Th e M A STER- SLA V E c o n n e c t i o n o f m a s t e r s t a t i o n s a l l o w s t o c a r r y o u t

multichannel systems and use an only headphone for all the intercom lines.

Th e c o n n e c t i o n i s m a d e w i t h a n 8 p i n RJ4 5 c a b l e (o f w i d e u s e i n c o m p u t e r

networks) without inverting (extension). We will introduce in the central unit that

we want to configure as master the cable connector FCC-68 in the master station

connector marked as MASTER, and in the master station we want to configure as

slave the other cable end in the master station connector marked as SLAVE. If we want to configure

more slave units, we will use another 8 pin RJ45 cable and we will connect the cable connector

FC C- 6 8 i n t h e f i r s t s l a v e u n i t , a n d t h e o t h e r c a b l e e n d i n t h e c o n n e c t o r FCC - 6 8 m a r k e d a s SLA VE o f

the following slave unit, and so forth up to one maximum of 5 master stations, what would give us

a maximum of 10 intercom lines controlled by this system.

Th e o p e r a t i o n i n M A STER- SLA V E m o d e i s v e r y s i m p l e . Th a t w a y , w e w i l l l i s t e n a l l t h e i n t e r c o m

lines in the headset connected to the master station. The volume control of each main station

adjusts the headset level of its local intercom lines (MASTER 1,2- SLAVE Nº1 3,4- SLAVE Nº2 5,6-

SLA VE N º 3 7 , 8 - SLA VE N º 4 9 , 10 ) a n d t h e l o c a l l i s t e n b a l a n c e c o n t r o l b e t w e e n i n t e r c o m l i n e s t h e

channel mix controlled by the main station.

Th e m i c s e n d i n g t o t h e d i f f e r e n t i n t e r c o m l i n e s i s c a r r i e d o u t w i t h t h e m i c o n / o f f s w i t c h o f

each intercom line (each main station controls two intercom lines).

Th e c a l l s i g n a l t o e a c h i n t e r c o m l i n e i s c a r r i e d o u t w i t h o f t h e C A LL s w i t c h a s s o c i a t e , a s w e l l

as each received call is shown in their associate channel (the associated led starts blinking and if

the buzzer is activated, the unit emits an intermittent sound). The buzzer on/ off switch is controlled

by each main station, as well as the remote mutes of all mics and buzzers.

In multichannel operation, it is possible to enable/ disable the microphones of all the stations

(m a ster o r sl aves), a s th e rem o te m u te b uzzers fu ncti on of a ll the sta tions a nd ca r r y o ut a ca ll to a ll

the system intercom lines (in order to obtain more information consult the section — BUZZER

ON/ OFF SWITCH).

Th e p r o g r a m i n p u t c o r r e s p o n d i n g t o t h e m a i n s t a t i o n c o n f i g u r e d a s M A STER w i l l w o r k a l o n e

(ea ch m a in sta ti o n ca n b e co nfig ured so tha t i n sl ave m od e the p r og r a m inp ut w o rks- in o rd er to

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obtain more information consult the section — SPECIAL OPERATIONS), but it can be sent to all the

intercom lines with the local program send to lines A/ B switches and program input level control.

Fi n a l l y , u p o n p r e s s i n g t h e s l a ve l i n k s w i t c h o f t h e s l a v e u n i t ( t h e s l a ve l i n k s w i t c h o f t h e m a s t e r

unit is disable), the slave unit channel A will be linked with the master unit channel A, so that the

units connected to the master unit channel A can communicate with the slave unit channel A and

vice versa, and the calls carried out in any channel A will arrive to all the units connected to both

channels A. This switch, together with the channel A and B link switch allows linking all the

multichannel system channels.

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CONNECTION OF INTERCOM SYSTEM S WITH M ORE THAN 5 0 BELTPACKS

It is possible connect two master stations (EF-200) in installations where it is necessary work

with more than 50 beltpacks (EM-201), with their lines in parallel (A with A and/or B with B), always

having the caution of opening the terminal impedance (in order to obtain more information,

consult the special operation section), of the secondary master station lines that serves us simply

how power reinforcement. In this type of operations, the master station unit is connected at the

beginning of the intercom chain, and the secondary unit at the end of this line, in this way, we will

reinforce the beltpack units power placed to the other end of the primary master station unit.

5. OPERATION

Th e E- 2 0 0 s e r i e s i n t e r c o m s y s t e m a r e d e s i g n e d t o a l l o w m a x i m u m e a s y c o m m u n i c a t i o n

operations between the different control areas in music or theatre live performances, television,

cinema, conference halls, and whatever broad events where multiple and fast communications are

required, by means of its simultaneous listening-speaking operation system.

Th e EF- 2 0 0 s y s t e m m a s t e r s t a t i o n p r o v i d e s t w o i n d e p e n d e n t i n t e r c o m c h a n n e l s , a n d t h e

capacity to feed up to 50 beltpacks (EM-201). Each channel provides a CALL switch, a MIC on/ off

switch (TALK), a listen balance control allows to listen to the channels independently, or a mix

between the two channels.

Th e p r o g r a m i n p u t a l l o w s t o i n s e r t e x t e r n a l a u d i o s i g n a l s i n t h e i n t e r c o m s ys t e m . Th e e x t e r n a l

audio signals could be sent to each channel or to the headphones, independently.

Th e h e a d s e t m i c r o p h o n e s i g n a l i s a v a i l a b l e t o d r i ve P. A . s y s t e m s . Re l a y c o n t a c t s a r e p r o v i d e d

that follows the P.A. key action, helping the installer to automate multiple tasks as Tally, switching

speakers, cue lights, etc.

Sy s t e m Ex p a n d a b i l i t y p e r m i t s c r e a t i n g a m u l t i c h a n n e l ( 4 , 6 , o r m o r e c h a n n e l s ) i n t e r c o m Sy s t e m

by using more Master Stations in a daisy chain arrangement. This feature enables freedom in System

design and in-site future upgrades. Rental companies can benefit in lower component inventories.

Th e g l o b a l a l l m i c (M i c - K i l l ) a n d b u z z e r s ( Bu z z - Ki l l ) m u t e s y s t e m s i n b o t h c h a n n e l s , a l l o w t o

control the line noise, as well as the ambient noise.

Our new internal Battery op eration permits short- time communications in difficult situations ( =

no Power) of emergency..

HEADSET CONNECTION

A XLR-4 type connector (XLR-4-32) allows to connect a headset and a microphone to the

master station. The headset impedance must be 200 Ω or higher (up to 2 KΩ) a nd the m icro p ho n e

must be dynamic or electret type.

Th e m i c r o p h o n e p r e a m p l i f i e r g a i n c a n b e c o n f i g u r e d w i t h a n i n t e r n a l p r e s e t i n + 3 0 o r + 4 0

dB. (In the factory set-up the microphone preamplifier gain is adjusted to +40 dB)

Fo r t h e e l e c t r e t m i c r o p h o n e t y p e i t i s n e c e s s a r y t o e n a b l e t h e p h a n t o m p o w e r o f 9 VD C w i t h

an internal preset. In order to obtain more information, consult the special operation section.

Th e n e x t l i s t s h o w s t h e X LR p i n s c o r r e s p o n d e n c e :

HEADSET - XLR-4-32

PIN 1

0 V (MICROPHONE)

PIN 2

SI GN A L (M I CRO P H O N E)

PIN 3

0 V (HEADPHONES)

PIN 4

SI GN A L ( H EA D P H O N ES)

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NOTE: Headphones can be with a double or single muff. In case of using a double muff

headphone, the two speakers should be wired in parallel mode.

HEADSET VOLUME CONTROL

Th e vo l u m e c o n t r o l a l l o w s a t t e n u a t i n g o r a m p l i f yi n g t h e s i g n a l s e n t t o t h e

headphones. This control adjusts the listen level to the headphones as you wish.

PA- M IC OUTPUT + RELAY CONTROL SWITCH

Th e PA - M I C s w i t c h a l l o w s t o e n a b l e t h e PA OU TPU T p l a c e d a t t h e r e a r p a n e l ,

which normally is disabled, and to carry out this way the microphone signal sending

picked up in the HEADSET to other audio systems, activating at the same time the

multipurpose relay (PA OUTPUT RELAY) placed at the rear panel (factory set-up).

In fact, we have explained the factory set- up in the previous paragraph. The PA OUTPUT can

be configured to always be enable, one can enable the PA OUTPUT and the multipurpose relay

activating the channel A and/or B microphone independently or activating the buzzer mute signal

(BUZZER REM OTE M UTES). When ever the PA OUTPUT a nd the m u l ti purp ose r el ay a re a cti va ted , the

PA- M IC sw i t ch a s so c i a t ed LED w i l l tu r n o n (i n th e ca se o f a c ti va t i n g t h e PA OUTPUT p e r m a n e n tl y,

the multipurpose relay won't be always activated, and the PA-MIC associated LED will turn off). In

order to obtain more information, consult the special operations section.

BUZ Z ER ON/ OFF SWITCH

Th i s s w i t c h e n a b l e s / d i s a b l e s t h e b u z z e r s o u n d w h e n t h e u n i t r e c e i v e s a c a l l .

When this sw itch is p ressed q uickly, a nd the b uzzer is ena b led , it w ill be d isa b led ,

and the LED indicator will turn off. On the other hand, if the buzzer was disabled, it

will be enabled and the LED indicator will lighten up.

Th e b u z z e r s o u n d i s d i f f e r e n t w h e n a c a l l f r o m t h e c h a n n e l A i s r e c e i ve d t h a t w h e n i s

received from the channel B, as well as when a simultaneous call from both channels takes place.

Th e b u z z e r a l s o s o u n d s w h e n a n y s w i t c h i s p r e s s e d , e m i t t i n g a s h o r t h o o t , w h o s e l e ve l i s

higher when it is enabled than when it is disabled.

Th e b u z z e r s o u n d l e ve l c a n b e c o n f i g u r e d w i t h a n i n t e r n a l j u m p e r ( i n t h e f a c t o r y s e t - u p t h e

buzzer sound level is configured high). In order to obtain more information, consult the special

operations section.

When the b uzzer sw itch is p ressed a nd hold s o n e second , the u nit enter s in g lob a l m od e

and the LED associated with the buzzer switch begins to blink.

When the u nit is in g lob a l m od e, it is p ossi b le to ca rr y out ca ll s from th e m a ster unit to a ll the

intercom channels (to all channels of the master unit and to all channels of the slave units), simply

pressing the CALL switch of any of the master unit channels.

Also in global mode, we can turn on/ off the microphones and the buzzer remote mute

signal (see the next paragraph for more information) of the master unit and all their associated

slave units. If the mic switch (TALK) of any of the intercom channels is pressed (when the system is

in global mode), and the microphone was disabled (the associated LED was turn off), all the

microphones of the master unit and all their associated slave units will be enabled. On the other

hand, if the microphone was enabled (the associated LED was turn on), all the microphones of the

master unit and all their associate slave units will be disabled.

Th e b u z z e r r e m o t e m u t e s i g n a l w o r k s i n a s i m i l a r w a y . I f t h e b u z z e r r e m o t e m u t e w a s

disabled, upon pressing the buzzer remote mute switch (when the system is in global mode), the

buzzer remote mute signal of the master station and all their associated slave units will be

enabled. On the other hand, if the buzzer remote mute signal was enabled, the buzzer remote

mute signal of the master station and all their associated slave units will be disabled.

Once the call sw itch, the microphone sw itch or the buzzer remote m ute sw itch w as pressed

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the system will leave the global mode, stopping blinking the associated LED to the buzzer switch.

If we want to leave the global mode without carrying out any of the functions previously

mentioned, we simply will press quickly the BUZZER switch and the system will leave the global

mode, stopping blinking the associated LED to the buzzer switch.

REM O TE M U TE ALL M I CS AN D BU Z Z ER SW I TCH ES

Th e s e s w i t c h e s a l l o w t o d i s a b l e a l l t h e m i c r o p h o n e s ( A LL M I C S) a n d a l l t h e

buzzers (BUZZERS) of both channels of the intercom system (including all the

beltpacks, desk station units and master station units) except the one from the

master station from that these switched are activated.

Th e r e m o t e m u t e A LL M I C S s w i t c h c a r r i e s o u t t h e f u n c t i o n u p o n p r e s s i n g i t . Th i s

means that the units (beltpacks, desk stations units, etc.) connected to the system can turn on the

microphones again when it’s required. When this switch is pressed, its associated LED turns on

during a moment.

Th e B U Z Z ERS s w i t c h , o n t h e o t h e r h a n d , c a r r i e s o u t a n o n / o f f f u n c t i o n . If t h e r e m o t e m u t e

buzzers function was enabled, when the remote mute buzzers switch is pressed the remote mute

buzzers function is disabled and the associated LED becomes turned off (in this moment all the

external units could enable their local buzzers again); if, on the other hand, it was disabled, when

the remote mute buzzers switch is pressed the remote mute buzzers function is enabled and the

associated LED becomes turned on (at this moment the buzzers of all the external units will be

disabled and they can not be enabled again locally).

CALL SWITCH

Th e EF- 2 0 0 m a s t e r u n i t i s p r o vi d e d w i t h t w o c a l l s w i t c h e s , o n e p e r i n t e r c o m

channel. When one of these switches is pressed a call signal is sent to the

corresponding intercom channel. The call signal makes the LED associated with the

switch start blinking; if the buzzer is enabled (consult buzzer on/ off section for more

information) an intermittent sound takes place during three seconds (the LED blinking, as well as

the buzzer sound is different if the call takes place in the channel A or B), the same as in all the

units (beltpacks, desk stations, master stations, etc.), connected to the same intercom channel.

If the CALL switch is pressed continuously, the duration of the call signal will be higher (the

time that the switch is pressed, and approximately 3 seconds more).

If a call signal is generated in an external unit (beltpacks, desk stations, master stations, etc.),

the LED associated to the CALL switch of the channel in which the call signal is received, will start

blinking and if the buzzer is enabled (see buzzer on/ off section for more information) an

intermittent sound will take place during about three seconds.

MIC ON/OFF/PUSH TO TALK SWITCH

Th e EF- 2 0 0 m a s t e r u n i t i s p r o vi d e d w i t h t w o t a l k s w i t c h e s , o n e p e r i n t e r c o m c h a n n e l .

Th e TA LK s w i t c h a l l o w s t o e n a b l e / d i s a b l e t h e m i c r o p h o n e , s o t h a t w e a r e a b l e t o s p e a k

with other units connected to the same intercom channel. If the channel A micro-phone

isn’t activated (for example), and the channel B microphone is activated, we will speak with

the stations connected to the channel B, but the connected stations to the channel won’t hear us.

If the microphone is activated, its associated LED will light up, and on the other hand, if it is

disabled, its associated LED will turn off.

Th e TA LK s w i t c h e s h a v e t w o o p e r a t i o n m o d e s . W h e n t h i s s w i t c h i s p r e s s e d q u i c k l y , t h e

microphone changes its state; if it was enabled, being pressed it gets disabled and turns off the

associated LED, and if it was disabled, being pressed it gets enabled and turns on the associated

LED.

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When the TALK sw itches are p ressed a nd h el d , the uni t w ill en ter i n th e sp ecia l fu n ctio n PUSH

TO TA LK ; t h i s m e a n s t h a t t h e m i c r o p h o n e w i l l b e e n a b l e d u n t i l t h e s w i t c h i s r e l e a s e d .

SIDETONE CONTROL

Th e s i d e t o n e c o n t r o l a d j u s t s t h e l e ve l o f yo u r o w n vo i c e a s y o u h e a r i t i n y o u r

headphones. It is designed to make approximately at the potentiometer halfway travelling

the maximum cancellation of your own voice (that is to say that you won't hear your voice

through the headphones), totally to the right or to the left giving the maximum level of voice,

passing through all the intermediates level positions.

Th e m a s t e r s t a t i o n u n i t h a s t w o s i d e t o n e c o n t r o l s , o n e f o r e a c h c h a n n e l . I t i s n e c e s s a r y t o

adjust each sidetone control independently, disabling a channel and adjusting the other and vice

versa.

LI N E A A N D B LI ST EN B A LAN C E C O N TRO L

Th e l i s t e n b a l a n c e c o n t r o l b e t w e e n l i n e s A a n d B a l l o w s t o a d j u s t t h e s i g n a l

mix of both channels that appears in the headset of the main station. Totally to the

left, the signal that appears in the headset is only the channel A signal, totally to the

right, the signal that appears in the headset is only the channel B signal, centered it

appears a mix between both channels and in intermediates positions, it adjusts the

level that we want to listen of each channel.

PROGRAM INPUT LEVEL CONTROL

Th e p r o g r a m i n p u t l e v e l c o n t r o l a d j u s t s t h e s i g n a l l e ve l s e n t t o t h e c h a n n e l s A a n d

B of the p rog ra m inp u t signa l (the sig na l introd u ced b y the p ro g ra m inp ut connecto r

XLR-3-31 placed at the rear panel). Next to the program input level control is marked the

position in which the gain is 0, that is to say the same signal as in the input. Totally to the

left the signal decreases in 10 dB and totally to the right the signal increases in 20 dB.

Keep in m ind that these gains are influenced by the position of the progra m input

MICRO/ LINE switch selector (placed at the rear panel), becouse if this switch is in mode micro, we

have 30 dB of additional gain.

PROGRAM SENDING TO LINES A/ B SWITCHES

Th e p r o g r a m s e n d i n g t o l i n e s A / B s w i t c h e s i n j e c t s t h e p r o g r a m s i g n a l i n t h e

corresponding channel (there is a switch for each channel) and all the units connected

to the corresponding channel will listen the program signal.

PROGRAM TO HEADPHONES CONTROL

Th e p r o g r a m t o h e a d p h o n e s c o n t r o l a l l o w s t o r e g u l a t e t h e p r o g r a m s i g n a l l e ve l t h a t

appears in the headsets connected to the master station unit EF-200, independently if the

program sending to lines A/ B switches is pressed or not. Keep in mind that if the program

input signal is sent to the lines, the signal sent directly to the headphones directly will be

added to the signal sending directly to the lines (attenuated by the sidetone control, previously

explained).

LI N ES A A N D B LI N K SW I T C H

Th e l i n e s A a n d B l i n k s w i t c h a l l o w s t o j o i n t h e t w o c h a n n e l s , s o t h a t t h e s a m e s i g n a l

appears in both channels. If the channels A and B are linked, the units connected to the

channel A can communicate with the one connected to the channel B and vice versa, and

the calls carried out in any channel will arrive to all the units connected to both channels.

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SLAVE CHANNELS LINK SWITCH

Th i s s w i t c h i s o n l y e n a b l e d w h e n t h e u n i t i s c o n f i g u r e d i n s l a v e m o d e , i n m a s t e r m o d e

it is disabled. In a multichannel system, the slave channels link switch of the slave station

allows to join the master station unit channel A with the slave station unit channel A, this

way the same signal appears in both channels. If the channels are linked, the units connected to

the master station channel A can communicate with the connected to the slave station channel A,

and the calls carried out in any channel A (master or slave) will arrive to all the units connected to

both channels A.

Th i s s w i t c h , t o g e t h e r w i t h t h e l i n e s A a n d B l i n k s w i t c h a l l o w s t o j o i n a l l t h e c h a n n e l s o f a

multichannel system.

EM ERG EN C Y S W I T CH ( B A T T ER Y O PERA TI O N )

Th e e m e r g e n c y s w i t c h a l l o w s t h e b a t t e r y o p e r a t i o n o f t h e i n t e r c o m s ys t e m i n

mains power failures.

If a battery (6LR61 type - 9VDC, the use of alkaline batteries is recommended) is

installed in the battery holder placed at the rear panel (consult emergency battery

placement section for more information), and there is a cut in the mains power supply,

upon pressing this switch, the system will turn on for 10 minutes or until the mains power supply is

recovered (what happens before).

Th e a p p r o x i m a t e d u r a t i o n o f a n a l k a l i n e b a t t e r y, i n a s y s t e m w i t h a m a s t e r s t a t i o n u n i t a n d

four beltpacks, is an hour.

6. OPTIONS

In this section we will explain the different available options for the master station EF-200 unit.

PROGRAM INPUT TRANSFORM ER (IT- DA)

In order to improve the common mode rejection ratio and get a galvanic isolation with the

previous part of the audio system, an input transformer for the program input is available.

Th e p r o v i d e d t r a n s f o r m e r s f u l f i l t h e i s o l a t i o n r u l e o f 1. 5 k V .

PA OUTPUT TRANSFORM ER (OT- DA)

In order to get a galvanic isolation with the next part of the audio system, an output

transformer for the PA output is available.

Th e p r o v i d e d t r a n s f o r m e r s f u l f i l t h e i s o l a t i o n r u l e o f 2 k V .

SECURITY COVER (TP- 1)

In some installation, it may be necessary to tamper proof the front panel controls avoiding

unwanted or accidental manipulations. For this purpose, it is available as an option, a transparent

plastic security cover. The installation is very easy, only with two provided screws.

KEY LOCKED SECURITY COVER (TS- 1)

In some installations it is necessary to isolate the master station unit controls with more

security than with the plastic security cover. For this extra protection, it is available an all-metallic

and lockable security cover. This option cover fits into the four rack holes of the unit and includes

rear nut-bars allowing the installation as a stand-alone unit.

Th i s c o ve r p r e v e n t s a l s o f r o m u n a u t h o r i s e d e x t r a c t i o n w h e n t h e u n i t i s r a c k m o u n t e d .

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7. SPECIAL OPERATIONS

In order to set-up some of the master station possibilities, the unit must be opened removing

the eight screws of the unit top cover, and for the input and output transformers placement also the

eight screws of the unit bottom cover, to solder the transformers.

NOTE: This type of operations takes place with the unit is opened; the best thing should be to carry it

out by a qualified technician.

DANGER: Before opening the unit, disconnect it from the mains. It is important to indicate that

although the unit is switched off (with the power switch in 0 position), if it keeps being connected to

the mains there are different parts of the unit that are subjected to high voltage.

CAUTION: Protect the master station from the rain and moisture, mostly if it is open. If liquid is spilled

into the unit, disconnect it from the mains and consult a qualified service technician.

PROGRAM INPUT TRANSFORM ER (IT- DA)

In order to improve the input common mode rejection ratio and for a galvanic isolation with

the previous part of the audio system, an input transformer is available.

Th e p r o g r a m i n p u t h a s a n i n s e r t p o i n t f o r t h e i n p u t t r a n s f o r m e r (TR2 ) p l a c e d j u s t b e s i d e t h e

XLR-3-31 program input connector, in the rear right corner of the main PCB.

Befo r e p la cin g the tra nsfo r m er, you sh ould rem ove the tw o lin ks corresp on d in g to th e

program input transformer (LK3 and LK4).

In the following picture is shown the placement of the input transformer TR2. It is important to

keep in mind the placement of the input transformer pins to make it coincide with the main PCB

(fo ur b eh in d a nd th re e forw a rd ).

Remove the links corresponding to the program input

transformer (LK3 and LK4).

Place the input transformer, keeping in mind the position of their

pins (four behind and three forward), and solder it to the main PCB.

OUTPUT TRANSFORMER (OT- DA)

In order to make a galvanic isolation with the next part of the audio system, an output

transformer is available.

Th e PA o u t p u t h a s a n i n s e r t p o i n t f o r t h e o u t p u t t r a n s f o r m e r (TR1) p l a c e d j u s t b e s i d e t h e X LR-

3-32 pa output connector, in the rear right corner of the main PCB.

Th e f o l l o w i n g p i c t u r e i s s h o w i n g t h e p l a c e m e n t o f t h e o u t p u t t r a n s f o r m e r TR1. It i s i m p o r t a n t