BOSE 268134R00 Schematic

FreeSpace

E-4 Business Music System

OWNER ’S GUIDE

Safety Information

Caution marks on the product

These CAUTION marks ar e located on the back of the product.

The lightning ﬂash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the

presence of uninsulated dangerous voltage within the system enclosure that may be of sufﬁcient magnitude to consti tute a risk of electric shock.

The exclamation point within an equilateral triangle, as

marked on the system, is intended to alert the user to

the presence of important operating and maintenance instructions in this owner’s guide.

Important safety instructions

Read these instructions.

2. Keep these instructions – for future reference.

3. Heed all warnings – on the product and in the owner’s

guide.

4. Follow all instructions.

5. Do not use this apparatus near water or moisture.

Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accor-

dance with the manufacturer’s instructions – To ensure

reliable operation of the product and to protect it from over heating, put the product in a position and location that will not interfere with its proper ventilation.

8. Do not install near any heat sources, such as radiators,

heat registers, stoves, or other apparatus (including ampliﬁers) that produce heat.

9. Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades with one wider than the other . A grounding-type plug has two blades and a third grounding prong. The wider blade or third prong are provided for your safety. If the pro vided plug does not ﬁt in your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or

pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories speciﬁed by the

manufacturer.

12. Use only with the cart, stand, tripod,

bracket, or table speciﬁ ed by the manufacturer or sold with the apparatus. When a

cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when

unused for long periods of time

this product.

14. Refer all servicing to qualiﬁed service personnel. Servic-

ing is required when the apparatus has been damaged in any way such as power-supply cord or plug is damaged; liquid has been spilled or objects have fallen into the apparatus; the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped

Opening or removing covers may expose you to dangerous voltages or other hazards. Please call Bose to be referred to an authorized service center near you.

15. To prevent risk of ﬁre or electric shock, avoid overload-

ing wall outlets, extension cords, or integral convenience receptacles.

16. Do not let objects or liquids enter the product – as they may touch dangerous voltage points or short-out parts that could result in a ﬁre or electric shock.

17. See product enclosure for safety related markings.

18. No naked ﬂame sources, such as lighted candles, should

be placed on the apparatus.

ARNING:

– to prevent damage to

– Do not attempt to service this product yourself.

o reduce the risk of ﬁre or electric shock, do

not expose the ampliﬁer to rain or moisture.

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Safety Information

Information about products that generate electrical noise

If applicable, this equipment has been tested and found to com ply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installa tion. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio commu nications. However, this is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encour aged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a different circuit than the one to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Note: Unauthorized modiﬁcation of the receiver or radio remote

control could void the user’s authority to operate this equipment.

This pr oduct complies with the Canadian ICES-003 Class B speciﬁcations.

The information furnished in this user’s guide does not include all of the details of design, production, or variations of the equip ment. Nor does it cover every possible situation which may arise during installation, operation, or maintenance. If you need assis tance beyond the scope of this user’s guide, please contact our Customer Service department. See page 64.

“Customer support” on

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Contents

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 The Bose

FreeSpace

E-4 business

music system . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 E-4 system accessories . . . . . . . . . . . . . . . . . . 6

1.3 FreeSpace Installer ™ software . . . . . . . . . . . . . 7

2.0 Designing with the E-4 System . . . . . . . . . . . . . . . . 8

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Basic design steps . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1 Step 1 – Determine source routing . . . . . . 8

2.2.2 Step 2 – Determine Auto

Volume requirements . . . . . . . . . . . . . 8

2.2.3 Step 3 – Determine volume

control requirements . . . . . . . . . . . . . . 11

2.2.4 Step 4 – Determine the

speaker requirements . . . . . . . . . . . . . 11

2.2.5 Step 5 – Determine the

E-4 requirements . . . . . . . . . . . . . . . . . 11

2.3 Auto Volume layout examples . . . . . . . . . . . . . 13

3.0 E-4 Hardware Description . . . . . . . . . . . . . . . . . . . . 16

3.1 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.1 System controls . . . . . . . . . . . . . . . . . . . . 17

3.2.2 Audio source inputs . . . . . . . . . . . . . . . . . 17

3.2.3 Amplifier outputs . . . . . . . . . . . . . . . . . . . 17

3.2.4 AC power . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.0 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Included accessories . . . . . . . . . . . . . . . . . . . . 18

4.3 Placement guidelines . . . . . . . . . . . . . . . . . . . . 18

4.4 Shelf mounting the E-4 unit . . . . . . . . . . . . . . . 18

4.5 Rack mounting the E-4 unit . . . . . . . . . . . . . . . 19

4.6 Installing accessories . . . . . . . . . . . . . . . . . . . . 20

4.6.1 Sensing microphones . . . . . . . . . . . . . . . . 20

4.6.2 User interfaces . . . . . . . . . . . . . . . . . . . . . 20

4.7 System wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.7.1 Auto volume microphone inputs . . . . . . . 22

4.7.2 Serial data communications . . . . . . . . . . . 22

4.7.3 User interface connections . . . . . . . . . . . 22

4.7.4 Remote standby switch . . . . . . . . . . . . . . 22

4.7.5 LINE 1/LINE 2 source input . . . . . . . . . . . 23

4.7.6 MIC/LINE 3 source input . . . . . . . . . . . . . 23

4.7.7 MIC/PAGE/LINE 4 source input . . . . . . . . 24

4.7.8 DIRECT IN/CONTROL source input . . . . 24

4.7.9 Amplifier output channels . . . . . . . . . . . . 25

4.7.10 Output voltage setting (70/100V) . . . . . . 25

4.7.11 Auxiliary output . . . . . . . . . . . . . . . . . . . 26

4.8 AC power connections . . . . . . . . . . . . . . . . . . . 26

5.0 Using FreeSpace System Installer Software . . . . . 27

5.1 Installing the software . . . . . . . . . . . . . . . . . . . . 27

5.2 Connecting to the E-4 system . . . . . . . . . . . . . 27

5.2.1 Connecting to another hardware device . 30

5.2.2 Viewing the sample design file . . . . . . . . 30

5.3 The Installer software user interface . . . . . . . . . 31

5.4 Set Up Hardware mode . . . . . . . . . . . . . . . . . . 33

5.5 Set Up Schedule mode . . . . . . . . . . . . . . . . . . 34

5.5.1 Setting the clock . . . . . . . . . . . . . . . . . . . 35

5.5.2 Adding events . . . . . . . . . . . . . . . . . . . . . 35

5.5.3 Viewing and changing event settings . . . 36

5.5.4 Removing events from the list . . . . . . . . . 36

5.6 Service Hardware mode . . . . . . . . . . . . . . . . . . 37

6.0 E-4 System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2 Connecting your PC to an E-4 system . . . . . . . 39

6.3 System setup procedure . . . . . . . . . . . . . . . . . 40

6.3.1 Output gain . . . . . . . . . . . . . . . . . . . . . . . 40

6.3.2 Zone setup . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3.3 Input gain . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.3.4 Source assign . . . . . . . . . . . . . . . . . . . . . 44

6.3.5 Source EQ . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.6 Page set up . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.7 Zone EQ . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.8 Dynamic EQ . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.9 Auto Volume . . . . . . . . . . . . . . . . . . . . . . 49

7.0 User Interface Operation . . . . . . . . . . . . . . . . . . . . 54

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.2 Standard user interface operation . . . . . . . . . . 54

7.3 Auto Volume interface operation . . . . . . . . . . . 55

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Contents

8.0 E-4 System Troubleshooting . . . . . . . . . . . . . . . . . . 56

8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.2 E-4 hardware indicators . . . . . . . . . . . . . . . . . . 56

8.2.1 Normal operation . . . . . . . . . . . . . . . . . . . 56

8.2.2 System fault . . . . . . . . . . . . . . . . . . . . . . . 56

8.2.3 Amplifier fault . . . . . . . . . . . . . . . . . . . . . . 57

8.2.4 Input clipping . . . . . . . . . . . . . . . . . . . . . . 58

8.2.5 Direct input is active . . . . . . . . . . . . . . . . . 58

8.2.6 No STANDBY and SYSTEM indicators . . 58

8.3 FreeSpace

8.3.1 Contents of the error log . . . . . . . . . . . . . 59

8.3.2 Hardware configuration . . . . . . . . . . . . . . 59

8.3.3 Power-on self-test results . . . . . . . . . . . . 59

8.3.4 Amplifier alarms . . . . . . . . . . . . . . . . . . . . 60

8.3.5 Solving faults reported in the error log . . . 61

8.4 Common problems . . . . . . . . . . . . . . . . . . . . . . 62

8.4.1 Communications port error . . . . . . . . . . . 62

8.4.2 No audio in zone . . . . . . . . . . . . . . . . . . . 62

8.4.3 User interface keypads do not

8.4.4 Bad sound in a zone . . . . . . . . . . . . . . . . . 63

8.4.5 User interface selects

8.4.6 Auto Volume does not calibrate . . . . . . . . 64

8.4.7 All front panel LEDs are amber . . . . . . . . . 64

8.5 Customer support . . . . . . . . . . . . . . . . . . . . . . . 64

8.5.1 Technical assistance . . . . . . . . . . . . . . . . 64

8.5.2 Reporting software bugs and issues . . . . 65

9.0 Upgrading E-4 Microcontroller Code . . . . . . . . . . . 66

10.0 Technical Specifications . . . . . . . . . . . . . . . . . . . . 68

10.1 Power amplifier . . . . . . . . . . . . . . . . . . . . . . . . 68

10.2 Digital signal processing . . . . . . . . . . . . . . . . . 68

10.3 Front panel indicators and

control connections . . . . . . . . . . . . . . . . . . . . 68

10.4 Rear panel inputs, outputs, and controls . . . . 68

E-4 system Error Log . . . . . . . . . . 59

operate correctly . . . . . . . . . . . . . . . . . 63

unassigned sources . . . . . . . . . . . . . . 64

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1.0 Introduction

1.1 The Bose

FreeSpace

E-4 business

music system

The Bose Fr eeSpace E-4 system is an integrated four-channel digital signal processor and 400-watt power ampliﬁer for 70/100V business music applications.

The E-4 system has a total of four source inputs, including two Line In, one Mic/Line and one Mic/Page/Line, to provide the inputs needed for most business music installations. The system also has a direct input which can override the sources playing on all four output channels.

The E-4 system has four ampliﬁer output channels which can be conﬁgured for different zones. A Music on Hold output is also provided for simple integration into a phone system.

In a single chassis, it provides all of the processing and control features required for one-to-four zone business music applica tions. These features include:

• Auto Volume: When used with the optional FreeSpace system Auto Volume Sense Mic, E-4 system electronics dynamically control the program level in each zone so your customers can always hear it, regardless of the background noise

• Scheduling: Allows you to program the E-4 system electronics for automated on/off control, source changes, and volume changes according to time of day or day of week

• Opti-Voice regardless of variations in speech projection

• Source Leveling: Automatically compensates for variations in source input levels

• Dynamic Equalization: Maintains tonal balance at all listening levels

• Room Equalization: Provides easy adjustment of tonal balance in each zone

• Signal Routing: Meets the demands of most four-zone systems, allowing for an input source to be routed to any of the four ampliﬁer outputs

• Serial Data Interface: RS-232 serial port for easy interfacing to your PC

• Contact Closure Input: Accepts a remote STANDBY switch

The integrated 400-watt power ampliﬁer features a patented power-sharing technology which dynamically allocates power to each output.

For example, if you have a two-zone system that requires 5 watts in Zone 1 and 395 watts in Zone 2, the FreeSpace E-4 system electronics distributes the power based on those needs.

The E-4 also includes an easy-to-replace memory module, which holds the system conﬁguration settings and design ﬁle uploaded by the FreeSpace

Paging: Provides the appropriate sound level

Installer ™ software (see page 7).

1.2 E-4 system accessories

Optional Bose accessories for the E-4 system ar e available.

• FreeSpace E-4 System User Interface Kit (U.S.) (PC029856) A wall-mountable keypad that ﬁ ts into a standard U.S. singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and mute.

• FreeSpace E-4 System User Interface Kit (Euro) (PC029857) A wall-mountable keypad that ﬁ ts into a standard Euro singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and mute.

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1.0 Introduction

•

FreeSpace (PC030101)

E-4 System Auto V olume Interface Kit (U.S.)

A wall-mountable keypad that ﬁ ts into a standard U.S. singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and Auto Volume on/off.

• FreeSpace E-4 System Auto Volume Interface Kit (Euro)

(PC030102)

A wall-mountable keypad that ﬁ ts into a standard Euro singlegang junction box. It provides buttons for volume up/down control, 1-3 source selection, and Auto Volume on/off.

• FreeSpace E-4 System Auto Volume Mic Kit (U.S.)

(PC029859)

One sensing micr ophone that can be mounted as is or in a standard U.S. single-gang junction box.

• FreeSpace E-4 System Auto Volume Mic Kit (Euro)

(PC029860)

One sensing micr ophone that can be mounted as is or in a standard Euro single-gang junction box.

• FreeSpace E-4 System Accessory Kit (U.S.) (PC030105) Supplemental r ear panel mating connectors and non-skid feet.

• FreeSpace E-4 System Rack Mount Kit (PC029858) One pair of rack ears.

1.3 FreeSpace Installer ™ software

Bose

Fr eeSpace Installer software is included with every E-4 system. The devices such as the E-4 system. The designed for use on a PC that is connected to the E-4 system through a serial data interface.

The Installer software requires a computer system with the following minimum requirements:

• 400 MHz Pentium

256 MB of RAM

• 50 MB of available hard-drive space

• RS-232 serial port

• 800 x 600 display

• 4x CD-ROM drive

• Microsoft Windows

Windows

Installer software allows you to conﬁgure hardware

Installer software is

-based PC

2000

98, Windows

98SE, Windows

NT ,

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2.0 Designing with the E-4 System

2.1 Introduction

This section describes the basic steps for designing an E-4 sys tem and includes an example. It is assumed that a complete loudspeaker design and layout has already been created.

2.2 Basic design steps

Ther e are ﬁve basic steps in designing an E-4 system.

2.2.1 Step 1 – Determine source routing

Decide which sources will be played in each area. Create a “source map” such as the following one that shows which sources will be played in each major area of the facility.

Source 1 Source 2 Source 3 Source 4

Area 1 ● ● Area 2 ● ● ● Area 3 ● ● Area 4 ● Area 5 ●

2.2.2 Step 2 – Determine Auto Volume requirements

Identify which areas will use Auto Volume. Each Auto Volume zone must use one Auto Volume user interface and one Bose sensing microphone to control the volume. A 70/100V volume control cannot be used.

When using Auto Volume, remember that you will be adjusting the volume of an overall area. Imagine that you have a dining area and a bar adjacent to one another. If the sensing microphone is placed above the bar, the music may become too loud in the din ing area. Likewise, if you place the sensing microphone above the dining area, the music may never be heard in the bar.

The following table provides some guidelines for establishing Auto Volume zones.

Speaker height is…

>25 ft Not recommended 12-25 ft One Auto Volume

<12 ft One Auto Volume

Speaker mounting height and the overall quality of the background noise is used to determine the Auto Volume zoning requirements. Uniform background noise is found in an area where no part of the area is louder or quieter than any other. A room with non-uniform background noise would seem louder in some areas (people talking, machinery running, etc.) and quieter in others.

When ﬁnding mounting locations for the sensing microphones, remember these points:

• The sensing microphone must be mounted at the same height as the loudspeakers or higher. A sensing microphone must never be mounted lower than the speaker height.

• In all cases, there must be 6 ft (1.8 m), minimum, between the loudspeaker and the sensing microphone. This is so that the microphone does not receive signals only from a loudspeaker.

• There must be 35 ft (10.7 m), minimum, between the sensing microphones of two adjacent Auto Volume zones.

•Avoid placing the microphone near unique noise sources like HVAC equipment, dishwashers, motors, etc.

Separating the microphones as much as possible for two zones is the best practice. Consider the previous example of the dining area and a bar adjacent to one another. If each of these areas uses Auto Volume, it is possible to create a situation in the dining

area where the music is too loud simply because the microphone

is too close to the bar.

Background noise is uniform

zone for every 3600 ft

zone for every 1800 ft

Background noise is non-uniform

One Auto Volume

zone for every 1800 ft One Auto Volume

zone for every 900 ft

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2.0 Designing with the E-4 System

The following are examples of correct and incorrect sensing microphone placements:

Correct placement Incorrect placement

Ceiling Flush

Mic

Wall Surface

Correct placement Incorrect placement

Mic

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2.0 Designing with the E-4 System

When mounting sensing microphones, always maintain a distance of 6 feet (minimum) between the microphone and the speaker.

Ceiling Flush

≥6 ft

Mic

≥6 ft

Ceiling Surface

Mic

≥6 ft

≥ 6'

Wall Surface

≥6 ft

≥ 6'

Mic

≥6 ft

≥ 6'

≥6 ft

≥ 6'

32SE

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2.0 Designing with the E-4 System

2.2.3 Step 3 – Determine volume control requirements

Decide which areas will have volume controls. Create a control map, such as the following, showing the types of controls that will be used, and the areas in which they will be installed.

Auto

Volume

Interface

Area 1 ● Area 2 ● Area 3 ● Area 4 ● Area 5 ●

Standard and Auto Volume interfaces are available for use with the E-4 hardware. Each offers control over source selection and volume. The Standard interface contains a Mute button, and the Auto Volume interface contains an Auto Volume on/off button. If you have identiﬁed an area that uses Auto Volume, you must use an Auto Volume interface to control this zone.

It is also possible to use 70/100V volume controls between the ampliﬁer output and the speaker input. If you plan to use 70/100V controls, be aware that they cannot be used in zones where either Auto Volume or Dynamic EQ is used. Auto Volume and Dynamic EQ monitor the ampliﬁer output and make adjustments accordingly. Using a 70/100V volume control would cause these functions to operate improperly.

When determining the placement or physical location of the controls, ﬁrst think about how the control is used. If the control is very rarely used or it requires a secure location, it should be placed with the equipment. If the control is for an area that requires frequent adjustments, then it is best to place the control in the area being controlled.

Auto

Volume

Interface

70/100V

Volume Control

70/100V

Volume Control

2.2.4 Step 4 – Determine the speaker requirements

Determine the speaker coverage required for the design. Consider the following points as you do this:

• Each Auto Volume function requires a separate zone. Each

Auto Volume zone requires the dedicated use of one E-4 out put channel.

• Each type of actively equalized speaker requires the dedicated

use of one E-4 output channel. If you are designing a system that uses actively equalized speakers, such as the 102 speaker, Model 32, Model 32SE, or Model 8, you must dedicate one E-4 output channel for each speaker type. If you have a system that uses passive speakers, such as the FreeSpace

system, Model 16 or 302™A speaker, you can mix and

match them on an E-4 output channel.

Create a speaker map, such as the following, and match the speaker models to areas (Speaker Qty x Tap = Zone Power required):

Model

32SE

Area 1 ● Area 2 ● Area 3 ● Area 4 ● Area 5 ●

FreeSpace

3-I

Speaker

Qty Tap

2 50 100

5 8 40

1 50 50

3 4 12

6 8 48

Area

Power

2.2.5 Step 5 – Determine the E-4 requirements

Once you have identiﬁed the areas that use Auto Volume and unique loudspeakers, you can combine different areas based on the types of sources and controls they are using.

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2.0 Designing with the E-4 System

Now we can take a look at how the maps we created can help us determine the quantity of E-4s we will need.

Sources Controls Loudspeakers

1 2 3 4 AV1 AV2 VC1 VC2 M32SE FS3 Total W E-4 Ch.

Area 1 ● ● ● ● 100 1 Area 2 ● ● ● ● ● 40 2 Area 3 ● ● ● ● 50 3 Area 4 ● ● ● 12 4 Area 5 ● ● ● 48 4

By combining the maps you can easily combine sources, speaker types, and control types. The information placed in this table suggests that Area 1 and Area 3 need to be grouped separately because they are Auto Volume zones requiring separate E-4 system outputs. Area 2 uses one standard volume contr ol requiring one E-4 output channel. Areas 4 and 5 share a common volume control and can be combined on a thir d E-4 output channel. Since only four outputs are required and the total combined power requirement is less than 400W, only one E-4 unit would be needed for this system.

Total System Power = 250W

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2.0 Designing with the E-4 System

2.3 Auto Volume layout examples

Large, open retail space with single music source

FreeSpace Model 16 (pendant mounted) Sensing microphone

Acoustimass module

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2.0 Designing with the E-4 System

Hair salon (Small space with specific noise)

FreeSpace® 3 system

Small space with specific noise

Sensing microphone

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Hotel lobby

2.0 Designing with the E-4 System

22 ft

22'

40 ft

40'

Model 16

(flush mounted)

Sensing microphone

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3.1 Front panel

3.0 E-4 Hardware Description

FreeSpace

Business Music System

3.1.1 Controls

STANDBY – The STANDBY button switches the unit

between standby and active. The color of the LED above the switch indicates the status:

Amber = Unit is in standby Unlit = Unit is active

USB – A USB communications port (for future use)

3.1.2 Indicators

SYSTEM STATUS – The SYSTEM STATUS LED indicates

the condition of the unit:

Green = Normal operation Red = Fault condition

AMP OUTPUTS

AUDIO SOURCES

AUDIO SOURCES – These LEDs indicate the operating

SYSTEM

STATUS

DIRECT

INPUT

STANDBY

USB

status of the four input sources:

Green = Good signal Amber = Low signal Red = Signal clipping Unlit = No signal

DIRECT INPUT – The color of this LED indicates the condi-

tion of the source connected to the DIRECT IN/CONTROL connector on the rear panel.

Amber = Active bypass Unlit = Normal operation

AMP OUTPUTS – These LEDs work in pairs (1 and 2, 3 and

4) and indicate the operating status of the four ampliﬁer output channels:

Green = Normal operation Red = Fault condition Unlit = No signal

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3.2 Rear panel

3.0 E-4 Hardware Description

SENSE MICROPHONES

1234

WALL PLATE CONNECTION

LINE 1

LINE 2

CONTACT CLOSURE

INPUT

AUDIO SOURCES

MIC/

MIC/PAGE/

LINE 3

AUX OUT/

CONTROL

LINE4

RS232

MUSIC ON

HOLD/

PBX OUT

12V

DIRECT IN/

CONTROL

PTT PTT

ion.

INPUTS

3.2.1 System controls

SENSE MICROPHONES – Input connectors for sensing

microphones used with the Auto Volume feature. See the Auto Volume Kit.

RS-232 – Standard RS-232 communications port. Provides

a communications interface for a PC running FreeSpace® system Installer™ software. The Installer™ software is used to conﬁgure the E-4 hardware.

WALL PLATE CONNECTION – Input connectors for stan-

dard and Auto Volume user interfaces

50/60Hz

POWER

OFF

CLASS 2 WIRING

AMP OUT

OUTPUTS

®

LISTED 917D

AUDIO

EQUIPMENT

This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1)This device may not cause harmful interference and (2)this device must accept any interference received,including interference which may cause undesired operat Complies with Canadian ICES-003 Class A Spec.

AMP OUT

geprüfte

TüV Rheinland

Sicherheit

RISK OF ELECTRICAL SHOCK

OUTPUT

VOLTAGE

70V 100V

DO NOT SWITCH

WHILE POWER IS ON

Bose Corporation, Framingham, MA 01701-9168

RISQUE DE CHOC ELECTRIQUE

DO NOT OPEN

FreeSpace Model E-4

400 Watt System Electronics

Made in the U.S.A.

NE PAS OUVRIR

100/120V~AC T6.25A, L250V 220/240V~AC T3.15A, L250V

300W MAX

Installer’s Note: Please notice the polarity markings when wiring speaker cables to the AMP OUT connectors.

CAUTION: DO NOT ground the minus (–) terminals.

AUX OUT/CONTROL – A line-level output that duplicates

the program material from LINE 4. May be used to feed another ampliﬁer installed for a large zone. The 12V control output is used to connect to Bose

MUSIC ON HOLD/PBX OUT – An audio output used to

ampliﬁer sequence inputs.

provide music input to a PBX system

CONTACT CLOSURE INPUT – An input connector for a

remote STANDBY switch

3.2.2 Audio source inputs

LINE 1/LINE 2 – Unbalanced audio inputs

MIC/LINE 3 – Balanced audio input with phantom power MIC/PAGE/LINE 4 – Balanced audio input with phantom power DIRECT IN/CONTROL – Balanced (DSP bypass at max. power)

3.2.3 Amplifier outputs

AMP OUT 1/2/3/4 – Speaker connections for four zones

3.2.4 AC power

OUTPUT VOLTAGE – Sets the AMP OUT lines to 70/100V.

Set fuse box to 100/120V for 70V; 220/240V for 100V

POWER ON/OFF – Switches AC power on or off

Fuse box – Conﬁgures the E-4 for 100/120V or 220/240 Set

OUTPUT VOLTAGE to 70V for 100/120V; 100V for 220/240V.

AC line cord jack – AC line voltage input

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4.0 Hardware Installation

4.1 Introduction

This section provides instructions for installing the FreeSpace® E-4 system hardware on a tabletop or in a rack.

4.2 Included accessories

The following accessories are shipped with the E-4 unit in the FreeSpace E-4 System Accessory Kit (PC030105).

• 2-terminal input connectors (6) – For wiring sensing microphones

• 3-terminal input connectors (2) – For wiring equipment to the MIC/LINE 3 input

• 4-terminal input connectors (3) – For wiring equipment to the AUX/OUT CONTROL, MIC/ PAGE/LINE 4, and DIRECT IN/CONTROL inputs

• 2-terminal output connectors (5) – For wiring speaker cables to the AMP OUT connections

• Rubber feet (4) – For installing the E-4 unit on a level surface

4.3 Placement guidelines

• Place the E-4 unit where it is protected from heat and allowed adequate ventilation.

• Place the E-4 unit away from direct heat sources, such as heating vents and radiators.

• Make sure that air can circulate freely behind, beside, and above the unit. Allow six inches on all sides.

Installer’s Note: Do not allow the chassis to exceed the maximum operating temperature of 50˚ C (122˚ F). Be aware of conditions in an enclosed rack that may increase the temperature above room-ambient conditions.

4.4 Shelf mounting the E-4 unit

The E-4 unit is ideal for shelf mounting. The included accessory kit contains four rubber feet for the bottom of the E-4 chassis. The rubber feet will protect the surface on which the E-4 unit is installed and help prevent movement of the E-4 unit. Be sure to follow the “Placement Guidelines” previously described when choosing a location for the E-4 unit.

• Replacement voltage label (2) – Used on OUTPUT VOLTAGE selection switch

• FreeSpace system Installer™

software CD

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4.0 Hardware Installation

4.5 Rack mounting the E-4 unit

Required accessory: FreeSpace® E-4 System Rack Mount Kit

(PC029858)

Rack ears

The E-4 unit requires three 1.75" (4.4 cm) rack space units with a 16" (40.6 cm) inside depth (including the rear supports). When mounting, use four screws with washers to prevent marring the front panel. Neoprene rubber washers are a good choice because they grip the screw head and prevent the screws from backing out from vibration or during transportation.

Installer’s Note: If the E-4 unit is to be transported while mounted in a rack, be advised that the rear of the E-4 unit must be mechanically supported. Install a shelf under the unit or use brackets in such a way as to support the rear of the unit. Failure to use proper mounting hardware may result in damage to the E-4 unit during transport.

(8) #8-32 x 1/2 in

Attaching rack ears to the E-4 chassis

Attaching the E-4 chassis to the rack

(mounting screws not provided)

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4.0 Hardware Installation

4.6 Installing accessories

4.6.1 Sensing microphones

Required accessory:

FreeSpace® E-4 System Auto Volume Mic Kit [PC029859 (U.S.), PC029860 (Euro)]

Wall plate-microphone

assembly

Assembly:

The sensing microphone can be installed:

• Using a junction box, or

• The microphone can be removed from the wall plate and mounted on a wood or similar surface.

Wall plate-junction box

assembly

Temporary plug

(2) Wire nuts

(2) #6-32 screws

Wall plate-junction box

assembly

Painting:

To paint the wall plate assembly, install the supplied temporary plug over the microphone. Remove the plug when ﬁnished painting.

Mounting locations:

For instructions on mounting locations, see “Step 2 – Determine Auto Volume requirements” on page 8.

4.6.2 User interfaces

Required accessory: FreeSpace E-4 System User Interface Kit

Wall plate

[PC029856 (U.S.), PC029857 (Euro)] or FreeSpace E-4 Auto Volume Interface Kit [PC030101 (U.S.), PC030102 (Euro)]

Keypad

Back plate

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#6 x 32 screws

4.0 Hardware Installation

Required additional equipment (not supplied):

Single-gang

RJ45

connectors

Cat 5 cable

electrical box

(with 4 twisted pairs)

Assembly:

SENSE MICROPHONE

123

WALL PLATE CONNECTION 1

LINE 1

LINE 2

LINE 3

User interface wiring:

Installer’s Note: Use only standard ethernet (Cat 5) cable to connect the user interface to the E-4 unit. DO NOT use crossover (XOV) cables.

568A Color Code

1 – White/Orange 2 – Orange

RJ45

3 – White/Green 4 – Blue 5 – White/Blue 6 – Green 7 – White/Brown 8 – Brown

CON CLO

AUDIO MIC/

Disabling source select keys:

Normally, when you press a source select key on either the standard user interface or Auto Volume user interface, you assign the selected source to the zone you are in. If you do not want a par ticular source available in the zone, you can disable the source key by making the following wiring modiﬁcations to the ethernet cable.

•To disable source 1 key: make no connection at position 4.

•To disable source 2 key: make no connection at position 5.

•To disable source 3 key: make no connection at position 6. For operation information, see “User Interface Operation” on

page 54.

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4.0 Hardware Installation

C L

4.7 System wiring

Installer’s Note: Disconnect the E-4 unit from the AC (mains) power before making any input/output connections.

4.7.1 Auto volume microphone inputs

Connect each sensing microphone to the SENSE MICROPHONES jacks on the E-4 rear panel.

SENSE MICROPHONES

1234

WALL PLATE CONNECTION 132

LINE 1

LINE 2

CONTACT CLOSURE

INPUT

AUDIO SOURCES MIC/

LINE 3

4.7.2 Serial data communications

Connect your PC to the E-4 unit using a straight-wired serial data cable (DB9 male to DB9 female).

AUX OUT/ CONTROL

MIC/PAGE/

LINE4

RS232

MUSI

PBX

12V

DIRECT I CONTR

PTT

4.7.3 User interface connections

Connect the user interface from each zone to the appropriate WALL PLATE CONNECTION jack.

Installer’s Note: Only use standard ethernet (Cat 5) cable to connect the user interface to the E-4 unit. DO NOT use crossover (XOV) cables.

SENSE MICROPHONES

1234

WALL PLATE CONNECTION

CONTACT CLOSURE

INPUT

LINE 1

LINE 2

AUDIO SOURCES

MIC/

LINE 3

AUX OUT/ CONTROL

MIC/PAGE/

LINE4

RS232

MUSIC ON

HOLD/

PBX OUT

12V

DIRECT IN/ CONTROL

PTT PTT

4.7.4 Remote standby switch

If you are installing a remote standby switch, connect it to the CONTACT CLOSURE INPUT.

Remote Standby

Switch

E-4 CONTACT

CLOSURE INPUT

ion.

INPUTS

RS232 port pinout

Normally Open

Switch (latching)

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