Telex Intercom System ES4000A User Manual

Telex

User Instructions

ES4000A

Listen

Call

Listen

alk

Call

Listen

alk

Call

Listen

alk

Call

alk

Model ES4000A

Intercom Expansion Station

Audiocom^®Intercom Systems

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Table of Contents

Configuration Pre-chec k .

Mounting Configurations

Connection Notes .

Cables

Power-Up

Sidetone Adjustments .

Operation

Specifications

Factory Service and Parts Information

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Audiocom®

Description

The ES4000A is an Expansion Station for the US2000A User Station. It interfaces 4

additional intercom channels to the US2000A, and it provides talk, listen and call but-

tons for the 4 additional channels. There are also 4 additional program inputs on the

back of the ES4000A, 1 for each added channel. Up to 4 ES4000A Expansion Stations

may be connected to the US2000A to add up to 16 channels (18 channels total). The

ES4000A typically utilizes the US2000A microphone and speaker (or microphone

headset) for communication with the added channels. The ES4000A also has individual

speaker outputs for independent monitoring of one or more of the 4 channels if desired.

The US2000A / ES4000A combination can be used as a simple, multi-channel inter-

com user station. In this configuration, the program inputs (and possibly the PA output

of the US2000A) are most likely not used, and the station operator has only talk, listen

and call capability. It is also possible that advanced features of the US2000A, such as

Mic Kill Send, might be turned off. Alternatively, the US2000A / ES4000A can be

used as a master station. In this application, one or more program inputs and the PA

output may be connected, and the program signals to the intercom channels can be

turned on or off from the US2000A. Additionally, the Mic Kill Send feature can be en-

abled, and microphones on any channels may then be turned off from the US2000A.

ES4000A

Listen

Call

Listen

Call

Listen

Call

Listen

Call

Talk

SPEAKERS

Telex

TELEX COMMUNICATIONS, INC.

Minneapolis, MN U.S.A.

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CHANNEL 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

1 VRMS

12-15 VDC

Figure 1. ES4000A Reference View (See numbered features on next page)

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Features

1. Intercom Talk Keys: Momentary or latching (hands-free) operation possible.

2. Call Keys: Used to call intercom channels and to indicate incoming calls.

3. Intercom Listen Keys: Momentary or latching operation possible.

4. Local Power Jack: The ES4000A can be powered from the intercom channels

via the CHANNEL 3-6 OUTPUTS connector (9). Alternatively, an optional

PS-L wall-pack accessory may be used to power the ES4000A from an AC out-

let. When power is sensed at the local power jack, the ES4000A automatically

disconnects from channel power. This means more channel power is available

for additional belt packs.

Important: The Local Power Jack only provides power to the ES4000A: it can-

☞

not be used to power the intercom system.

5. EXP IN and EXP OUT Connectors: The EXP IN connector receives the micro-

phone audio signal from the US2000A, and it sends the monaural mix of the

four ES4000A channels to the US2000A speaker or headset. The EXP OUT con-

nector connects to the EXP IN connector of an additional ES4000A. Up to 4

ES4000A Expansion Stations may be daisy chained with the EXP IN and EXP

OUT connectors. An EXP IN/OUT cable is supplied with each ES4000A.

6. SPEAKERS: Usually, the listen mix of all 4 ES4000A channels is sent to the

US2000A speaker or headset via the EXP IN connector. Alternatively, speakers

may be connected to one or more of the speaker outputs of the ES4000A.

7. BAL / UNBAL Switch: This selector switch sets the ES4000A for compatibility

with either Audiocom or Clear-Com* channel connector pin-outs, channel

power requirements, and call signaling requirements.

8. Program Inputs Connector and Trimmers: Each intercom channel has its own

program input and level adjust trimmer. For each program input, there is an inter-

* Brand names mentioned are the property of their respective companies.

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Audiocom®

nal jumper which routes the program either to the intercom channel only, or to

both the intercom channel and the US2000A headset or speaker (default setting).

Additionally, the program signal to the intercom channel may be turned on or

off via the US2000A front panel programming. There is also an internal pro-

gram interrupt DIP switch which selects either automatic program interrupt

when the station operator activates a channel's talk key, or no program interrupt

during talk. The ES4000A program inputs connector may be broken out to com-

mon 3-pin XLR audio cables using an optional XP-4PGM Breakout Panel.

9. CHANNEL 3-6 OUTPUTS Connector: This connector provides the intercom chan-

nel audio input and output connections, as well as operating power when the

ES4000A is being powered from the intercom channels. Depending on the applica-

tion, this connector can connect to either a PS4000 Power Supply, or to an

XP-ES4000 Breakout Panel. Examples of both connections are provided in the wir-

ing diagrams which follow. A channel output cable is supplied with each ES4000A.

10. Configuration Switches, Jumpers and Sidetone Controls (Figure 2). These let

you customize the operation of the ES4000A to match your intercom system re-

quirements. See “Configuration Pre-check”, page 7, for details.

Sidetone Trimmers

Ch 6

Ch 5

J21

3 2 1

J18

SW2

BAL/UNBAL

3 2 1

SW3

SW1

Ch 4

Ch 3

J16

DIP Switches

3 2 1

J15

3 2 1

Program Listen Jumpers

Figure 2. Locations of configuration switches, jumpers, and sidetone controls.

(Top cover removed.)

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Installation

Unpacking

The ES4000A is supplied with the following items. Contact the shipper or your

Audiocom dealer immediately if anything is damaged or missing. Detach and fill out

the registration card and return it to Telex to properly register your intercom station.

Quantity

Description

ES4000A Expansion Station

Warranty and registration card

User Instructions

Termination Plug

EXP IN/OUT Cable, with 1/8-inch (3.5 mm) phone plugs

CHANNEL OUTPUT Cable, with 15-pin connectors

Rubber feet (apply to bottom of ES4000A for desktop use)

Configuration Pre-check

Before making connections, read the configuration notes that follow, and make sure

that all switches and jumpers are properly set for your intended usage. Locations of

configuration switches and jumpers are shown in Figure 2. Only the DIP switches

and jumpers require internal access. If access is required, remove one screw from the

top cover and 3 screws from each side.

DIP Switches

DIP switches and their default settings are listed in Table 1, page 8. The following

paragraphs provide additional details.

Program Interrupt DIP Switches

Each intercom channel has a dedicated program input. These can be used to feed

background music, mix-minus audio (for broadcasting usage) etc. to the intercom

channels. If external program sources will be connected to the ES4000A, you have a

choice of whether or not you want the program audio to interrupt (shut off) on the in-

tercom channel while the US2000A/ES4000A station operator is talking.

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Audiocom®

Table 1. Configuration Switch Settings

Switch

Number

Description

Settings

Default

Setting

DIP Switch SW1 (Internal)

On (Closed): Enabled

Off (Open): Disabled

SW1-1

SW1-2

SW1-3

SW1-4

SW1-5

SW1-6

SW1-7

SW1-8

Program Interrupt, Ch 6

Off

On (Closed): Enabled

Off (Open): Disabled

Program Interrupt, Ch 5

Off

On (Closed): Enabled

Off (Open): Disabled

Program Interrupt, Ch 4

On (Closed): Enabled

Off (Open): Disabled

Program Interrupt, Ch 3

On (Closed): Enabled

Off (Open): Disabled

Audiocom Call Send, Ch 3*

Audiocom Call Receive, Ch 3*

Audiocom Call Send, Ch 4*

Audiocom Call Receive, Ch 4*

On (Closed): Enabled

Off (Open): Disabled

On (Closed): Enabled

Off (Open): Disabled

On (Closed): Enabled

Off (Open): Disabled

Push-button Switch SW2 (BAL-UNBAL Switch on Back Panel)

Audiocom or Clear-Com

operation

Out: Audiocom (Balanced)

In: Clear-Com (Unbalanced)

Out

DIP Switch SW3 (Internal)

On (Closed): Enabled

Off (Open): Disabled

SW3-1

SW3-2*

SW3-3

SW3-4

SW3-5*

SW3-6*

SW3-7*

SW3-8*

Audiocom Call Send, Ch 5*

Audiocom Call Receive, Ch 5*

Audiocom Call Send, Ch 6*

Audiocom Call Receive, Ch 6*

Not used

On (Closed): Enabled

Off (Open): Disabled

On (Closed): Enabled

Off (Open): Disabled

On (Closed): Enabled

Off (Open): Disabled

On (Closed): N/A

Off (Open): N/A

Don’t care

On (Closed): N/A

Off (Open): N/A

Not used

On (Closed): N/A

Off (Open): N/A

Not used

On (Closed): N/A

Off (Open): N/A

Not used

These switches apply only when the BAL/UNBAL switch on the back panel (SW2) is set to

the BAL position for Audiocom usage. When the switch is set to the UNBAL position, call

send and receive are always enabled.

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Audiocom Call Send and Receive DIP Switches

By default, all channels of the ES4000A can send and receive Audiocom call signals.

You can disable call send or call receive capability for selected channels if desired.

When the BAL / UNBAL switch on the back panel is set to the UNBAL position

☞

(for use with a Clear-Com Intercom System) the call send and call receive DIP

switches have no effect. Call send and call receive are always on for Clear-Com

usage.

Balanced/Unbalanced Switch (SW2)

This switch must be set to the balanced (BAL) position for use with an Audiocom

Intercom System. Set the switch to the unbalanced (UNBAL) position when using

the US2000A / ES4000A with a Clear-Com Intercom System.

Direct Program Listen Enable / Disable Jumpers

By default, each program input can be heard by intercom stations on the correspond-

ing intercom channel. (This can be turned on or off for each program input via the

US2000A front panel programming. See "Turning the Program Inputs On and Off"

in the Operation section of the US2000A User Instructions.) Additionally, all pro-

gram signals can be heard directly in the US2000A speaker or headset, and each pro-

gram is output at the corresponding speaker jack on the back of the ES4000A. To

disable direct program listening for a program input, reset the appropriate jumper as

shown in Table 2. Locations of the jumpers are shown in Figure 2, page 6.

Table 2. Direct Program Listen Enable / Disable Jumpers

Jumper

J15

Description

Settings for All Jumpers

Program 3 direct to Headset or Speaker

Program 4 direct to Headset or Speaker

Program 5 direct to Headset or Speaker

Program 6 direct to Headset or Speaker

J16

Pins 2&3 Shorted: Enable

Pins 1&2 Shorted: Disable

J18

J21

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Audiocom®

Sidetone Trimmers

These trimmers are normally adjusted after all components are connected, and they

can be accessed through the bottom cover (Figure 15). Refer to the US2000A User

Manual for the sidetone adjustment procedure.

Mounting Configurations

The ES4000A can be used on a desktop, or it can be rack mounted. For desktop use,

install the 4 rubber feet supplied with the ES4000A. For rack mounting, use optional

Audiocom RMK Rack Mount Kits (Figure 3). Many configurations are possible

when using the kits. Examples are shown in Figures 4 and 5.

When rack mounting components, you may not be able to access the sidetone

☞

trimmers after the components have been mounted. In this case, you can position

the components in the rack and make all required connections. Then, adjust the

sidetone trimmers before installing and tightening all rack mount screws.

RMK-S Single-Unit Rack Mount Kit

for one 1/2-rack wide Audiocom

component*

RMK-D Dual-Unit Rack Mount Kit

for two 1/2-rack wide Audiocom

components*

RMK-M Multi-Unit Rack Mount Kit

for mixed 1/2-rack and 1/4-rack

wide Audiocom components. Mounts

one 1/2-rack wide unit with 1/4-rack wide

components, or 3 1/4-rack wide components.

* 1/2-rack wide components: US2000A, ES4000A, PS2000L, SPS2000A,

PS4000, PS-X, SPK-2000. 1/4-rack wide components: SS-1000

Figure 3. Audiocom RMK Rack Mount Kits.

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BACK OF RACK

FRONT OF RACK

PS4000 (CH7 -10POWER)

PS-4000

Reset

SPS2000A (CH1/2 POWER)

PS4000 (CH3 -6POWER)

PS-4000

SPS2000A

Combine

Isolate

Reset

Volume

US2000A

ES4000A

Headset

Listen

Call

Listen

Mic Kill

Listen

Call

Listen

Call

Listen

Call

Listen

Call

Vox

Panel Mic

Call

Talk

All Talk

Volume

XP-USPG

XP-4PGM

SPARE

ES4000A

Listen

Call

Listen

US2000A (CH 1/2)

BOP-1000 WITH 1 XP-USPG AND 1 XP-4PGM

Call

Talk

2 ES4000A'S

(CH 3-6 AND CH 7-10)

Figure 4. Typical Rack Mount Configuration for a 10-Channel Master Speaker Station with Minimum Power Supply

Configuration. The SPS-2000A provides power for channels 1 and 2, and also provides the listening speaker for all 10 chan-

nels. A microphone must be connected to the US2000A for talk on the 10 channels. Each PS4000 provides power for 4 inter-

com channels and also interfaces an ES4000A to the intercom channels. The XP-USPG interfaces 2 external program inputs to

the US2000A, and also interfaces the US2000A to an external PA system. Each XP-4PGM interfaces 4 external program

sources to an ES4000A. Connections and further details for this configuration are shown in Figure 6. Note: An additional rack

space is shown between the two PS4000 power supplies. This may be required to prevent power supply overheating when the

ambient air temperature is high.

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BACK OF RACK

FRONT OF RACK

PS2000L (CH5 POWER)

PS2000L (CH6 POWER)

PS2000L

Combine

Isolate

Combine

Isolate

Reset

PS2000L (CH3 POWER)

PS2000L (CH4 POWER)

PS2000L

Combine

Isolate

Combine

Reset

Isolate

SPS2000A (CH1 POWER)

PS2000L (CH2 POWER)

BOP-1000 WITH 1 XP-USPG, 1 XP-4PGM, AND 1 XP-ES4000

PS2000L

SPS2000A

Combine

Isolate

Reset

Isolate

Volume

US2000A

ES4000A

Headset

Listen

Call

Listen

Mic Kill

Listen

Call

Listen

Call

Listen

Call

Listen

Call

Vox

Panel Mic

Call

XP-USPG

XP-4PGM

XP-ES4000

Talk

All Talk

Volume

US2000A

ES4000A

Figure 5. Typical Rack Mount Configuration for a 6-Channel Master Speaker Station with Maximum Power Supply

Configuration. Each channel has a separate power supply, and the SPS-2000A on channel 1 also provides the listening

speaker for all 6 channels. A microphone must be connected to the US2000A for talk on the 6 channels. The XP-USPG

interfaces 2 external program inputs to the US2000A, and also interfaces the US2000A to an external PA system. The

XP-4PGM interfaces 4 external program sources to the ES4000A. The XP-ES4000 interfaces 4 of the PS2000L power supplies

to the 4 channels of the ES4000A. The connection between the US2000A and the ES4000A, as well as the connections of the

XP-USPG and XP-4PGM, are shown in Figure 6. The power supply connections for the US2000A are shown in Figure 7. The

power supply connections for the ES4000A are shown in Figure 9. Note: Additional rack spaces are shown between the rows

of power supplies. This may be required to prevent power supply overheating when the ambient air temperature is high.

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Connection Notes

•

Typical connections for the US2000A, ES4000A and various power supplies are

shown starting with Figure 6, page 14. Select the configuration which most

closely matches your intended usage.

•

The US2000A and ES4000A normally draw operating power from the intercom

channel power supplies (SPS2000A, PS2000L, etc.). Alternatively, you can use

optional PS-L Wall-pack Power Supplies. If you are using PS-L Wall-packs,

connect them to the 12-15 VDC jacks on the back panels of the US2000A and

ES4000A. When PS-L Wall-packs are used, the US2000A / ES4000A will not

draw power from the intercom channel power supplies, leaving more power for

belt packs.

Important: The PS-L power supply only provides power for the station that it is

☞

connected to. You cannot use a PS-L to power the intercom channels!

•

Never connect more than 1 SPS2000A, PS2000L, or PS4000 Power Supply to

the same intercom channel. This will cause poor audio quality and increased

noise. Typically, all power supplies are located at a central location, such as a

central master station. This lets the central master station operator turn off the

intercom system when it is not being used.

•

Termination Plugs: The ES4000A is supplied with 2 termination plugs for spe-

cial applications where 1 or more channels are unpowered. Figures 12, page 20

and 13, page 21 show examples of how to use these plugs. If all of your inter-

com channels will be powered from an SPS2000A, PS2000L, or PS4000 power

supply, the termination plugs are not needed.

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Audiocom®

PGM PGM

2 IN 1 IN

OUT

CH 1-2

SPS2000A

SPEAKER

INPUT

100-240 VAC 60/50 HZ

CHN

MADE IN USA

LINE LEVEL

VRMS

FRONT

BACK

CH 1-2

XP-USPG

US2000A

PUSH

PROGRAM

INPUTS

SPEAKERS

LINE LEVEL

VRMS

VOL

PGM

TO BELT PACKS

AND REMOTE

MASTER STATIONS

EXP

OUT

P.A.

BAL

UNBAL

OUT

CHN

12-15 VDC

CH 1

CH 2

CH 3

CH 4

CH 5

CH 6

CH 7

CH 8

CH 9

CH 10

PGM PGMPGM PGM

6 IN 5 IN 4 IN 3 IN

CH 3-6

PS4000

CA NO. 9000-7336-00 MADE IN USA

FRONT

CH 3 - 6

CHN

CONNECT TO ES-4000

CLASS

WIRING 2A 24VDC

XP-4PGM

ES4000A

BACK

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

PGM PGMPGM PGM

10 IN 9 IN 8 IN 7 IN

CH 7-10

PS4000

CA NO. 9000-7336-00 MADE IN USA

Note: For further informa-

tion about the cable num-

bers, see page 22.

CHN

CLASS

WIRING 2A 24VDC

CONNECT TO ES-4000

FRONT

BACK

CH 7 - 10

XP-4PGM

ES4000A

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

VRMS

12-15 VDC

TO ANOTHER ES4000A

Figure 6. Central master station with simple power supply configuration. This

10-channel station provides all of the channel power and program input connections

for the intercom system. This configuration should only be used at one point in the

intercom system. It is ideal for smaller intercom systems with fewer remote intercom

stations. For optional power configurations that permit more stations, see Figures 7

through 10. Note: The SPS2000A power supply includes a speaker and is typically

used for intercom listening, with a gooseneck microphone connected to the

US2000A for talk-back. Alternatively, a headset with a microphone may be used. In

this case, no speaker is needed, and a PS2000L power supply may therefore be

used in place of the SPS2000A.

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SPS2000A

Channel 1 Power and

All-Channel Speaker

Combine / Isolate Switch

set to Combine

PS2000L

Channel 2 Power

Combine / Isolate Switch

set to Combine

SPEAKER

INPUT

100-240 VAC 60/50 HZ

100-249 VAC 60/50 HZ

CHN

MADE IN USA

LINE LEVEL

VRMS

PUSH

PROGRAM

INPUTS

SPEAKERS

LINE LEVEL

VOL

PGM

VOL

PGM

VRMS

EXP

OUT

P.A.

BAL

UNBAL

OUT

CHN

12-15 VDC

Note:

US2000A Internal

DIP switches set

for monaural

Note: For further informa-

tion about the cable num-

bers, see page 22.

operation (default)

To ½ of stations

on channel 1

To ½ of stations To ½ of stations

on channel 1 on channel 2

To ½ of stations

on channel 2

Figure 7. Maximum Power Configuration for Channels 1 and 2. This power sup-

ply configuration should only be used at one point in channels 1 and 2. Typically, it

is set up at the central master station. This configuration permits about twice as

many remote stations on channels 1 and 2 than the configuration shown in Figure

6. Note: A PS2000L may be substituted for the SPS2000A for headset-only opera-

tion.

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Audiocom®

TO US2000A

EXP IN CONNECTOR

Note: For further informa-

tion about the cable num-

bers, see page 22.

CH 3-6

ES4000A

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

VRMS

12-15 VDC

XP-ES4000

BACK

TO THE EXP IN CONNECTOR

OF ANOTHER ES4000A

CH 6

CH 5

CH 4

CH 3

FRONT

PUSH

TO REMOTE MASTER

STATIONS AND BELT PACKS

CH 6

CH 5

CH 4

CH 3

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CLASS

WIRING 1.5A 24VDC

PS2000L Power Supplies

Combine / Isolate switches set to Isolate

Figure 8. Intermediate Power Configuration for Channels 3-6 (or 7-10, 11-14,

etc.). This power supply configuration should only be used at one point in each

group of 4 channels. Typically, it is set up at the central master station. It permits

about twice as many remote stations on the 4 channels than is possible with the

power supply configuration shown in Figure 6.

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TO US2000A

EXP IN CONNECTOR

Note: For further informa-

tion about the cable num-

bers, see page 22.

CH 3-6

ES4000A

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

XP-ES4000

BACK

TO THE EXP IN CONNECTOR

OF ANOTHER ES4000A

CH 6

CH 5

CH 4

CH 3

FRONT

PUSH

TO 1/2 OF REMOTE

MASTER STATIONS

OR BELT PACKS

TO 1/2 OF REMOTE

MASTER STATIONS

OR BELT PACKS

CH 6

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CH 5

CH 4

CH 3

CH 5

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CH 4

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CH 3

PS2000L Power Supplies

Combine / Isolate Switches

set to Combine

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

Figure 9. Maximum Power Configuration for Channels 3-6 (or 7-10, 11-14, etc.).

This power supply configuration should only be used at one point in each group of

4 channels. Typically, it is set up at the central master station. It permits about four

times as many remote stations on the 4 channels than is possible with the power

supply configuration shown in Figure 6.

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Audiocom®

TO US2000A

EXP IN CONNECTOR

Note: For further informa-

tion about the cable num-

bers, see page 22.

CH 3-6

ES4000A

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

XP-ES4000

BACK

TO THE EXP IN CONNECTOR

OF ANOTHER ES4000A

CH 6

CH 5

CH 4

CH 3

FRONT

PUSH

TO 1/2 OF REMOTE

MASTER STATIONS

AND BELT PACKS ON

CH 3 AND CH 4.

TO ALL REMOTE

MASTER STATIONS

AND BELT PACKS ON

CH 5 AND CH 6.

TO 1/2 OF REMOTE

MASTER STATIONS

AND BELT PACKS

ON CH 3 AND CH 4

CH 5

and

CH 6

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

PS2000L Power Supply

CH 4

Combine / Isolate switch set to Isolate

CH 3

CH 4

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CH 3

PS2000L Power Supplies

Combine / Isolate switches

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

set to Combine

Figure 10. Mixed Intermediate and Maximum Power Configuration for

Channels 3-6 (or 7-10, 11-14, etc.). This power supply configuration should only be

used at one point in each group of 4 channels. Typically, it is set up at the central

master station. In this example, channels 3 and 4 have about twice the capacity of

channels 5 and 6, while channels 5 and 6 have about twice the capacity as the con-

figuration shown in Figure 6.

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TO ADDITIONAL REMOTE

MASTER STATIONS

OR BELT PACKS

CH 1-2

US2000A

CH 1

PS-L

SPK2000

CH 2

PUSH

PROGRAM

INPUTS

INPUT1

INPUT2

SPEAKERS

LINE LEVEL

VOL

PGM

VOL

PGM 2

VRMS

EXP

OUT

P. A .

BAL - OUT

BAL

CHN

12-15 VDC

UNBAL - IN

12-15 VDC

CH 1

CH 2

FROM MASTER STATION

OR BELT PACK

XP-ES4000

CH 3-6

ES4000A

BACK

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

VRMS

12-15 VDC

CH 6

CH 5

CH 4

CH 3

FRONT

PUSH

TO ADDITIONAL REMOTE

MASTER STATIONS

OR BELT PACKS

CH 6

CH 5

CH 4

CH 3

FROM MASTER STATION

OR BELT PACK

CH 7-10

ES4000A

XP-ES4000

BACK

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

CH 10

CH 9

CH 8

CH 7

FRONT

PUSH

TO ADDITIONAL REMOTE

MASTER STATIONS

OR BELT PACKS

CH 10

CH 9

CH 8

CH 7

Note: For further information about the

cable numbers, see page 22.

FROM MASTER STATION

OR BELT PACK

Figure 11. Typical remote 10-channel master station or user station. This inter-

com station can have the same functionality as the central master station shown in

Figure 6. Alternatively, you can disable some of the advanced features, such as Mic

Kill, program inputs, etc. This will limit the station’s functionality to be a common

user station with multi-channel talk/listen capability.

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Audiocom®

TO US2000A

EXP IN CONNECTOR

Note: For further informa-

tion about the cable num-

bers, see page 22.

CH 3-6

ES4000A

SPEAKERS

Telex

PROGRAM

INPUTS

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

XP-ES4000

TO THE EXP IN CONNECTOR

OF ANOTHER ES4000A

BACK

CH 6

CH 5

WET LINES TO 1/2 OF REMOTE

MASTER STATIONS OR BELT PACKS ON

CHANNELS 5 AND 6

TERMINATION

PLUGS

FRONT

PUSH

CH 3

CH 4

DRY LINES TO REMOTE STATIONS

ON CHANNELS 3 AND 4

CH 6

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

CH 6

CH 5

100-249 VAC 60/50 HZ

CHN

MADE IN USA

CLASS

WIRING 1.5A 24VDC

WET LINES TO 1/2 OF REMOTE

MASTER STATIONS OR BELT PACKS ON

CHANNELS 5 AND 6

PS2000L Power Supplies

Combine / Isolate Switches

set to Combine

Figure 12. Using the termination plugs supplied with the ES4000A for mixed

wet- and dry-line operation. In this example, channels 5 and 6 are powered from

a PS2000L Power Supply (wet lines), while channels 3 and 4 are operated without

power (dry lines). Any remote station connected to channel 3 or 4 must supply its

own power. For example, a US2000A that is powered by a PS-L Power Supply

could be connected to channels 3 and 4. The advantage of dry-line operation is

that intercom stations may be operated over a much greater distance.

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SPK2000

CH 1-2 US2000A

CH 1

CH 2

TERMINATION

PLUGS

PUSH

PROGRAM

INPUTS

PROGRAM

INPUTS

INPUT1

SPEAKERS

LINE LEVEL

VRMS

SPEAKERS

LINE LEVEL

VRMS

VOL

PGM

VOL

PGM

VOL

PGM

VOL

PGM 2

INPUT2

EXP

OUT

EXP

OUT

BAL

P. A .

BAL

P. A .

BAL

OUT

BAL

OUT

CHN

12-15 VDC

UNBAL

12-15 VDC

UNBAL

CH 1

CH 2

CH 3-6 ES4000A

SPEAKERS

Telex

PS-L

PROGRAM

INPUTS

PROGRAM

INPUTS

EXP

OUT

EXP

OUT

PGM VOLUME

CAN 3-6 OUTPUTS

BAL-OUT

UNBAL-IN

BAL-OUT

UNBAL-IN

LINE LEVEL

12-15 VDC

VRMS

12-15 VDC

VRMS

XP-ES4000

PS-L

XP-ES4000

PS-L

BACK

CH 6

CH 5

CH 4

CH 3

TERMINATION PLUGS

FRONT

PUSH

TO ADDITIONAL

LOCALLY POWERED

INTERCOM STATIONS

CH 3

CH 4

CH 5

CH 6

Note: For further informa-

tion about the cable num-

bers, see page 22.

Figure 13. Using termination plugs for all dry-line connection. In this example, all components use local power supplies,

and no power is supplied on the intercom channels. All stations may be operated over a much greater distance than is possi-

ble when using powered channels. Important: there should only be one termination plug used in each channel.

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Audiocom®

Cables

The numbers below correspond to the cable numbers in the connection drawings on

the previous pages.

1. 1-channel intercom cable. Sold separately. Use Telex "ME" cables, below. Or,

build per Figure 14.

ME-25: 25' (7.6 m) cable with Male and Female 3-pin XLR connectors.

ME-50: 50' (15.2 m) cable with Male and Female 3-pin XLR connectors.

ME-100: 100' (30.4 m) cable with Male and Female 3-pin XLR connectors.

2. 2-channel intercom cable. Sold separately. Use Telex "ME /2" cables, below. Or,

build per Figure 14.

ME-25/2: 25' (7.6 m) cable with Male and Female 6-pin XLR connectors.

ME-50/2: 50' (15.2 m) cable with Male and Female 6-pin XLR connectors.

ME-100/2: 100' (30.4 m) cable with Male and Female 6-pin XLR connectors.

3. Y adapter cable. Sold separately. Use Telex CA-23-16. Or, build per Figure 14.

4. 3 ft (0.91 m) speaker cable with RCA plugs. One supplied with each SPS2000A,

SPK-1000, and SPK-2000.

5. 18" (457 mm) EXP IN/OUT cable, stereo miniplug to stereo miniplug. One sup-

plied with each ES4000A.

6. 18" (457 mm) CHANNEL OUTPUT cable, 15-pin Male Dsub to 15-pin Female

Dsub. One supplied with each ES4000A.

7. Shielded patch cable, 9-pin Male Dsub to 9-pin Female Dsub. Customer local

purchase: available at Radio Shack, etc. Note: All pins must be connected

straight through: do not use an RS232 computer cable!

8. Shielded patch cable, stereo miniplug to stereo miniplug. Customer local pur-

chase. Available at Radio Shack, etc.

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9. Shielded audio cable. Must have male 3-pin XLR connector at one end for con-

nection to the XP-USPG or XP-4PGM program inputs. Pin-out for program in-

puts is as follows:

Pin 1: common

Pin 2: + program input

Pin 3: - program input

10. Shielded audio cable. Must have male 3-pin XLR connector at one end for con-

nection to the XP-USPG PA output. Pin-out for PA output is as follows:

Pin 1: common

Pin 2: + PA output

Pin 3: - PA output

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Audiocom®

TYPICAL 1-CHANNEL CABLE WIRING

Pair 1

Pair 2

1 (Both wires)

Shield

Cable Type: 22AWG Stranded, 2-Pair Twisted-wire, with Shield

Connector Type: 3-Pin XLR Audio (Neutrik or Switchcraft)*

Pin 1: Common

Denotes twisted pair.

Pin 2: Channel Audio / Power

Pin 3: Channel Audio / Power

Shield: Earth ground

Denotes shield.

TYPICAL 2-CHANNEL CABLE WIRING

Pair 1

Pair 2

Pair 3

1 (Both wires)

Shield

Cable Type: 22AWG Stranded, 3-Pair Twisted-wire, with Shield

Connector Type: 6-Pin XLR Audio (Neutrik only, not compatible with 6-pin Switchcraft)*

Pin 1: Channel 1 & 2 Common

Pin 2: No connection

Denotes twisted pair.

Denotes shield.

Pin 3: Channel 1 Audio / Power

Pin 4: Channel 1 Audio / Power

Pin 5: Channel 2 Audio / Power

Pin 6: Channel 2 Audio / Power

Shield: Earth ground

“Y” CABLE WIRING

Ch1

Pair 1

Pair 2

Pair 3

Case

1 (Both wires)

Shield

Ch2

Shield

Use second drain wire if available, or add an extra section of wire.

Standard cables are generally constructed using a male connector at one end and a

female connector at the other end. This allows several cables to be interconnected to

create longer cable runs. Audiocom master stations, speaker stations and belt packs

also typically provide both a male and female Neutrik connector for each intercom

channel. This permits loop-through connection of several intercom stations using the

standard cables. Audiocom power supplies use a 3-pin male Neutrik connector for

each channel. Audiocom wallplates use male Neutrik connectors.

Figure 14. Audiocom intercom cable wiring diagrams

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Ch 3

Sidetone

Ch 4

Sidetone

Ch 5

Sidetone

Ch 6

Sidetone

Figure 15. Sidetone Trimmer Access on Bottom of ES4000A

Power-Up

The ES4000A channels power-up identically to channels 1 and 2 of the US2000A.

Refer to the US2000A User Instructions for all power-up information.

Sidetone Adjustments

Use the sidetone adjustment procedure as described in the US2000A User Instruc-

tions, except substitute channel 3, channel 4, etc. The locations of the ES4000A side-

tone trimmers are shown in Figure 15.

Operation

The ES4000A channels operate identically to channels 1 and 2 of the US2000A. Re-

fer to the US2000A User Instructions for all operating information.

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Audiocom®

Specifications

General

Power Requirements:

Voltage:

Phantom Power: 24 VDC nominal (12 to 30 VDC)

Local Power (with PS-L Wall-pack Power Supply or equivalent): 14 to 15 VDC

Current: 65 mA, quiescent; 150 mA maximum

Dimensions: 1.75" (44.5 mm) high, 8.25" (209.6 mm) wide, 10.0" (250 mm) deep

Environmental Requirements:

Storage: -20°C to 80°C; 0% to 95% humidity, non-condensing

Operating: -15°C to 60°C; 0% to 95% humidity, non-condensing

Intercom Channels, Balanced Mode (BAL / UNBAL switch set to BAL position)

Output Level: 1 Vrms nominal

Input Impedance: 300 ohms

Bridging Impedance: greater than 10,000 ohms

Sidetone: -40 dB, 35 dB adjustable range

Call Signaling:

Send: 20 kHz ±100 Hz, 0.47 Vrms ± 2dB

Receive: 20 kHz ±800 Hz, 100 mVrms

Mic-Kill Frequency:

Send: 24 kHz ±100 Hz, 0.5 Vrms ± 2dB

Receive: 24 kHz ±800 Hz, 100 mVrms

Noise Contribution: less than -70 dB

Common Mode Rejection Ratio: greater than 50 dB

Intercom Channel, Unbalanced Mode (BAL / UNBAL switch set to UNBAL position)

Output Level: 1 Vrms ±10%

Input Impedance: 150 ohms

Bridging Impedance: 10,000 ohms ±5%

Sidetone: -40 dB, 35 dB ±10% adjustable range

Call Signaling:

Send: 11 ±2 VDC

Receive: 4 VDC

Speaker Output

Level: 1.0 Vrms, ±2 dB (0 dB nominal)

Impedance: 1000 ohms nominal

Program Input

Voltage Gain Adjustment Range (program Input to channel output, with 100 mVrms input): 25

±3 dB (2.6 Vrms maximum, unit is factory-set to 1.0 Vrms)

Input Impedance: Balanced, 75 Kohm ±10%; unbalanced, 38 Kohm ±10%

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Frequency Response

EXP IN to/from Channel, EXP IN to/from EXP OUT, Channel to Speaker: 200 Hz to 8 kHz

+1/-3 dB

Total Harmonic Distortion: Less than 0.5 %

Connector Pin-outs

12-15 VDC Jack

Connector Type: 2.0 mm DC jack

Internal pin: + 12 to 15 VDC

External Ring: Common

EXP IN Jack

Connector Type: 1/8" (2.0 m) stereo phone jack

Tip: Listen input

Ring: Talk output

Sleeve: Common

EXP OUT Jack

Connector Type: 1/8" (2.0 m) stereo phone jack

Tip: Talk output

Ring: Listen input

Sleeve: Common

SPEAKER Jacks

Connector Type: RCA Phono jack

Tip: Speaker output high

Sleeve: Common

PROGRAM INPUTS Connector

Connector Type: DB9F Female, 9-pin D-subminature

Pin 1: Common

Pin 2: Channel 3 program in low

Pin 3: Channel 4 program in low

Pin 4: Channel 5 program in low

Pin 5: Channel 6 program in low

Pin 6: Channel 3 program in high

Pin 7: Channel 4 program in high

Pin 8: Channel 5 program in high

Pin 9: Channel 6 program in high

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Audiocom®

CHANNEL 3-6 OUTPUTS Connector

Connector Type: DB15F Female, 15-pin D-subminature

Pin 1: Channel 3 intercom audio input/output high

Pin 2: Channel 3 intercom audio input/output low

Pin 3: Common

Pin 4: Channel 5 intercom audio input/output high

Pin 5: Channel 5 intercom audio input/output low

Pin 6: Common

Pin 7: Common

Pin 8: Common

Pin 9: Common

Pin 10: Channel 4 intercom audio input/output high

Pin 11: Channel 4 intercom audio input/output low

Pin 12: Common

Pin 13: Channel 6 intercom audio input/output high

Pin 14: Channel 6 intercom audio input/output low

Pin 15: Power (30 VDC)

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Factory Service and Parts Information

When returning equipment for repair include your return address, telephone number

and proof of date of purchase, along with a description of the problem.*

The address for Audiocom equipment returns and parts information is:

Service Department

Telex Communications, Inc.

West 1st Street

Blue Earth, Minnesota 56013 U.S.A.

Telephone: (507) 526-3205

(Collect calls not accepted)

Warranty Repairs - If in warranty, no charge will be made for the repairs. Equipment

returned for warranty repair must be sent prepaid and will be returned prepaid.

Non-Warranty Repairs - Equipment that is not under warranty must be sent prepaid

to Telex. If requested, an estimate of repair costs will be issued prior to service. After

your approval and completion of the repairs, the equipment will be returned on a col-

lect basis. Collect charges may be avoided by sending a signed check for payment in

full along with your signed estimate approval form (shipping charges are included in

the estimate).

* For sales / technical support and system design contact:

Pro Audio Sales Department

Telex Communications, Inc.

12000 Portland Avenue South

Burnsville, Minnesota 55337 U.S.A.

Telephone: (952) 884-4051

(Collect calls not accepted)

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Audiocom®

Notes

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Notes

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Addendum

Document Affected: ES4000A User Instructions, Publication Number

9350-7551-000 Rev. A

Addendum Number: 1

General Instructions: Use this addendum with Revision A of the user instruc-

tions. This information will be included in Revision B.

Page 6, item 6: The description should be 18" (457 mm) CHANNEL OUTPUT

cable, 15-pin Male Dsub to 15-pin Male Dsub. One supplied with each

ES4000A.

Pages 16-21: All cables labeled with number 6 should be labeled with number

11. The description for cable number 11 is 18" (457 mm) CHANNEL OUTPUT

cable, 15-pin Male Dsub to 15-pin Female Dsub. One supplied with each

XP-ES4000.

Notes:

•

When you are connecting an ES4000A to a PS4000 Power Supply, use the

CHANNEL OUTPUT cable that is supplied with the ES4000A (cable 6).

•

When you are connecting the ES4000A to an XP-ES4000, use the

CHANNEL OUTPUT cable that is supplied with the XP-ES4000 (cable

11). The CHANNEL OUTPUT cable that is supplied with the ES4000A is

not used.

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TELEX COMMUNICATIONS, INC.

12000 Portland Ave. So., Burnsville, MN 55337 U.S.A.

9350-7551-000 Rev. B , 8/00

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