Security Systems BU Communication Systems ST/SEU-CO 1 DCN SA PO FMU 10.11.2004 Dual Audio Interface...

Security Systems BU Communication Systems

DCN SA PO FMU10.11.2004 ST/SEU-CO 1

Dual Audio Interface Unit LBB 3535/00

The DAI unit can be Assigned for:

Two Delegate positions two microphones two loudspeakers

or

Chairman position one microphone priority control panel one loudspeakers

Accepts line input

I&O Manual



1 2 31 2 3


1. 6-pole Connector for connection of other system units (loop-through).

2. 2 x 3.5 mm stereo jack-plug sockets for connection to LBB 3538/00 FM loudspeaker panel.

3. 2 x 8-pole 262° DIN-type connectors for connection to Microphone with FM Control Panel LBB 3537/xx, or standard hand held microphones LBB 3536/x0 or the Chairman microphone Priority Switch Panel LBB 3537/10 to connector input1.

Notes:

- The output is switched off when the corresponding input is switched on.

- In voice-activate mode only one microphone input 2 is active!




Closed Open

Open

J2

Open

Chairman's microphone : input 2Priority control panel : input 1

Function

Mic. On 1&2 (factory setting)

Open Closed Ambient microphone on input 2

Jumper setting

J1J2

J1




212

3

4

5

6

1. Initialisation button (INIT) used for initialising the unit during installation. Also used to reset the unit’s address.

2. Input 1 and 2: ± 3 dB input level potentiometer for fine adjustment.

3. Initialisation LED indicator.

4. Selector switch for selecting an asymmetrical/symmetrical microphone input

5. Input attenuation selection of: 0, 6, 12 or 18 dB. Factory setting: 6 dB.

6. Microphone or line level select switch. Balanced audio line-input level (-12 dBV) or microphone-input level (-60 dBV) sources, with or without phantom power supply.



Multi-purpose connection unit LBB3540/15

The MPCU can be Assigned for:

One Delegate position

or One Chairman position

or Entrance Unit

or Exit Unit

I&O Manual



1 2 31 2 3


1. 6-pole Connector for connection of other system units (loop-through).

2. 2 x 3.5 mm stereo jackplug sockets for connection to: - LBB 3538/00 FM loudspeaker panel.

3. 2 x 8-pole 262° DIN-type connectors for connection to: Microphone with FM Control Panel LBB 3537/xx, or standard microphones LBB 3536/00 and /10 or the Chairman microphone Priority Switch Panel LBB 3537/10 to connector input1.

Note: When two microphones are connected (delegate mode only),both are switched on at same time.




4 5 6 74 5 6 7

4. 20-pole Micromatch connector for connection to:

- LBB 3541/00 FM Delegate voting control panel.

- LBB 3542/xx FM Delegate/Chairman voting control

panel with LC-display

5. 6-pole modular jack for LBB 3555/00 Intercom handset.

6. 10-pole Micromatch connector for connection to LBB 3543/15 FM ID-Card reader panel.

7. 2 m long cable terminated with a 6-pole circular connector for connection to the trunk-line.




910

8

11 12 13

8. Input level potentiometer: ± 3 dB.

9. Initialisation micro switch (Init) used for initialising the unit during installation. Also used to reset the unit’s address (De-Init).

10. Initialisation indicator (LED) indicating the unit requires initialising.

11. Jumper for assigning the unit as either a delegate or as a chairman unit.

12. Selector switch for selecting: Asymmetrical / Symmetrical microphone input or Symmetrical microphone input with Phantom power supply (applicable to both inputs).

13. Input attenuation selection of: 0, 6, 12 or 18 dB (applicable to both inputs). Default setting: 6 dB.




J03J02J01

Solder spot J2 Open (default): Normal operation Closed: Microphone LED-ring will

begin to flash when the last 60 seconds of speech time remains

NOTE: If J2 is ‘closed’ when the ‘Voice’ activation mode is selected, the microphone LED-ring will remain lit when speaking into the microphone.

Solder spot J3 Open (default): Normal operation Closed: No display unit connected




Configuration if Assigned as:

Delegate Unit with : Microphone’s, Control Panel(s) (with or without LC-Display), Intercom handset, ID-Card reader.

Chairman Unit with: Microphone’s, Control Panel(s) (with or without LC-Display), Intercom handset, ID-Card reader.

Entrance Unit with : ID-Card reader, LC-Display Control panel.

Exit Unit with : ID-Card reader, LC-Display Control panel.

Jumper on topside Chairman / Delegate

Open

Chairman

Delegate

Open

Chairman

Delegate

Jumper Jo1 inside unit solder type

Open

Open

Open

Closed

Closed

Closed

FunctionAssigned as

Chairman Unit

Chairman Unit

Delegate Unit

Entrance Unit

Entrance Unit

Exit Unit



FM - Microphone adjustment in DCN

Test set-up Audio sine wave generator Home made loudspeaker reference source “A” (see figure below) CPSU/ CCU AC mV meter

DCN FMUnit




Microphone stemWhen the microphone stem assembly has to be replaced, it is required that the input level of themicrophone is adjusted again by use of the preset potmeter R(x).. This due to the spread insensitivity of the microphone capsule (approx.. ±3dB).

ProcedureThe adjustment is a practical procedure to compare factory adjusted units with units were themicrophone stem is replaced and to be tuned to the system level again.

Measurement data output and adjustments is represented by the symbol

Test procedure Comment .

1 - Connect the Delegate unit with the CCU. Select mode only one active mic. on the CCU!

2 - Connect to the ‘Line out’ of the CCU the AC mV meter

3 - Adjust the audio source to approx. 1kHz. The audio level of the lsp. should be distortion

free and at a level of speaking distance Takes

care that no acoustic nuisance from outside

influence the measurements.




Test procedure Comment .

4 - Place the mic. of a factory adjusted Idea, make from an old DCN microphone head Delegate unit close to the loudspeaker on housing an audio reference source. a fixed distance. Mount inside the (empty) head e.g. a paging

bleeper as ref. loudspeaker.Important is that for all measurements the distance between loudspeaker and microphoneis equal.

Measure the audio level on the AC meter. Take this level as ref. for the DCN FM units to beadjusted. Repeat the ref. measurement for a check with other unit(s).The factory level adjustment is ±0.5dB

5 - Remove the factory-adjusted unit and Do not change the audio setting adjustments. place the unit for adjustment in the same position.

Read the audio level on the AC meter.

Tune R(x) to the audio ref. Default as For the LBB3537/xx, tune the +/- 3dB adjustmentmeasured before. potmeter of the LBB3535/xx or LBB3540/xx



DCN Voting Unit Range LBB4141/x0

LBB4141/00 Voting Panel

LBB4141/50 Voting Panel Chinese

I&O Manual



DCN Voting Unit LBB4141/00

Allows three types of voting: parliamentary multiple choice (1-5) audience response (++,+,0,-,--)

LED vote confirmation indicators LED unit active indicator Pimple for locating third button



DCN Voting Unit Chinese Version LBB4141/50

Allows parliamentary voting Colored voting buttons Chinese text LED vote confirmation indicators LED unit active indicator Pimple for locating “Yes” button



12

3

4

1 De-init/init switch for de-initialization and initialization of the unit 2 Button order jumper for setting the voting button order for parliamentary

voting 3 DCN cable 1 meter DCN cable with male connector 4 DCN cable 1 meter DCN cable with female connector





1 2

1 Jumper Position 1 – for Parliamentary Voting 2 Jumper Position 2 – for Multiple Choice (1-5) and for

Audience Response (++,+,0,-,--)

Note :The default position of the button order jumper is position 2



End Caps (Set of 50 Pieces)

LBB4125/00

Couple Pieces (Set of 50 Pieces)

LBB4127/00



DCN Flush Mounting Units

End of section

Robert Bosch GmbH

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written consent of the copyright owner.

Security Systems BU Communication Systems ST/SEU-CO 1 DCN SA PO FMU 10.11.2004 Dual Audio Interface...

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