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Communications Systems | LBB 4540 Integrus Pocket Receivers

LBB 4540 Integrus Pocket Receivers

www.boschsecurity.com

u Specially-designed IC for maximum performance

and a long battery life time

u Recharging electronics integrated in the chip,

ensuring optimum charging performance

u 2-digit LCD display with battery and reception

status indication

u Number of available channels is always the same as

the number of channels in use by the system,

eliminating the need to scroll through unused

channels

These ergonomically designed pocket receivers

incorporate the latest electronics technology -

including a specially designed IC - to ensure maximum

performance and a long battery lifetime. The pocket

receivers can be used for both language and music

distribution.

Functions

• Audio signal automatically muted when signal is too

low, ensuring that the user receives only high quality

audio

• Can be used with disposable batteries (2x AA alkaline

batteries, not included) or environmentally-friendly

NiMH rechargeable battery pack LBB 4550/00, (not

included)

• No power used when headphone is disconnected

• Clip for easy wearing

• Measurement mode for easy checking of radiator

coverage

• Attractive and stylish design

• Up to 200 hours operation with alkaline batteries

• Up to 75 hours operation with battery pack

• Recharges from empty to full capacity within 1 hour

and 45 minutes

Controls and Indicators

• 2-digit LCD display with channel number, battery and

reception status indication

• On/off button

• Volume control slide adjuster

• Channel selection up/down buttons

• Charging indicator LED

Interconnections

• 3.5 mm (0.14 in) stereo jack output socket for

headphones

• Battery contacts for use with AA alkaline batteries

• Connector for use with LBB 4550/00 battery packs

• Charging contacts on the left-hand side of the pocket

receiver for compatibility with LBB 4560 charging

units

Technical specifications

Electrical

IR irradiance level 4 mW/m

per carrier

Angle of half sensitivity ± 50°

Headphone output level at

2.4 V

450 mVrms (speech at maximum

volume, 32 ohm headphone)

Headphone output frequency

range

20 Hz to 20 kHz

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Indice de contenidos

Pagina 1

Communications Systems | LBB 4540 Integrus Pocket ReceiversLBB 4540 Integrus Pocket Receivers www.boschsecurity.com u Specially-designed IC for max

Pagina 2

Headphone output impedance 32 ohm to 2 kohmMax. signal-to-noise ratio 80 dB(A)Supply voltage 1.8 to 3.6 V, nominal 2.4 VPower consumption at 2.4 V(bat

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