Technical Data
Electrical Data
Overall system characteristics
Transmission Characteristics
IR transmission wavelength 870 nm
Modulation frequency Carriers 0 to 5: 2 to 6 MHz, according to IEC
61603 part 7
Carriers 6 and 7: up to 8 MHz
Protocol and modulation DQPSK, according to IEC technique 61603 part 7
System Audio Performance
(Measured from the audio input of an INT‑TX range transmitter to the headphone output of an
LBB 4540 range receiver.)
Audio frequency response
20 Hz to 10 kHz (-3 dB) at Standard Quality
20 Hz to 20 kHz (-3 dB) at Premium Quality
Total harmonic distortion at 1 kHz < 0.05%
Crosstalk attenuation at 1 kHz > 80 dB
Dynamic range > 80 dB
Weighted signal-to-noise ratio > 80 dB(A)
Cabling and System Limits
Cable type
75 Ohm RG59
Maximum number of radiators 30 per HF output
Maximum cable length 900 m (2,970 feet) per HF output.
Transmitters and Modules
Infrared Transmitters
Mains voltage 100-240 Vac, 50-60 Hz
Power consumption
operating, maximum 55 W
standby 29 W
Asymmetrical audio inputs +3 dBV nominal, +6 dBV maximum (± 6 dB)
+15 dBV nominal, +18 dBV maximum (± 6 dB)
Symmetrical audio inputs +6 to +18 dBV nominal
Emergency switch connector Emergency control input
Headphone output 32 ohm to 2 kohm
HF input Nominal 1 Vpp, minimum 10 mVpp, 75 ohm
HF output 1 Vpp, 6 VDC, 75 ohm
12
12.1
12.1.1
12.1.2
Language Distribution System Technical Data | en 77
Bosch Security Systems B.V. Operation manual 2013.11 | V1.4 |
To Next Page
Loading...
