6. Receivers, Battery
Packs and Charging Units
6.1 LBB 4540 Pocket Receivers
These ergonomically designed receivers incorporate the
latest electronics technology - including a specially
designed IC - to ensure maximum performance and a
long battery lifetime. The receivers can be used for both
language and music distribution.
Product variants:
• LBB 4540/04: 4-Channel Pocket Receiver
• LBB 4540/32: 32-Channel Pocket Receiver
6.1.1 Features and Benefits
•Specially-designed IC for maximum performance and a
long battery life time
•Recharging electronics integrated in the chip,ensuring
optimum charging performance
• 2-digit LCD display with battery and reception status
indication
•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
•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) or environmentally-friendly
NiMH rechargeable battery pack (LBB 4550/00)
•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
6.1.2 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
6.1.3 Interconnection
•3.5 mm (0.14 in) stereo jack output socket for head-
phones
•Battery contacts for use with AA alkaline batteries
•Connector for use with LBB 4550 battery packs
•Charging contacts on the left-hand side of the receiver
for compatibility with LBB 4560 charging units*
6.1.4 Physical Characteristics
Dimensions (H x W x D)
: 155 x 45 x 30 mm (6.1 x 1.8 x 1.2 in)
Weight excl. batteries/
battery pack
: 75 g (0.16 lb)
Weight incl. battery pack
: 125 g (27 lb)
Finish
: Charcoal with silver
6.1.5 Electrical and Optical Characteristics
IR irradiance level
: 4 mW/m2 per carrier
Angle of half sensitivity
: +/-50 °
Headphone output level
at 2.4V
: 450 mVrms (speech at maximum
volume, 32 Ohm headphone)
Headphone output
frequency range
: 20 Hz to 20 kHz
Headphone output impedance
: 32 Ohm to 2 kOhm
Max. signal-to-noise ratio
: 80 dB(A)
Supply voltage
: 1.8 to 3.6 V, nominal 2.4 V
Power consumption at 2.4 V
: 15 mA (speech at maximum volume,
32 Ohm headphone)
Power consumption (standby)
: < 1 mA
Integrus Data brochure | Receivers, Battery Packs and Charging Units |23
* LBB 3406, 3407, 3408 and 3409 charging units are electronically incompatible with LBB 4540 Pocket Receivers, and can actually damage them.
That is why the charging contacts on LBB 4540 Pocket Receivers and LBB 4560 Charging Units have deliberately been located on the left-hand
side, which is a different position than found on the mentioned charging units.
(136 Seiten)
(19 Seiten)
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