Bosch LBB 1968 Manuel d'utilisateur Page 20
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Plena Range | 47
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Communication
Technical Specifications
Electrical
Mains Voltage 230 VAC/115 VAC, ±10%, 50/60
Hz
Max Power Consumption 50VA
Max Mains Inrush Current 1.5 A @ 230 VAC / 3 A @ 115
VAC
Battery Voltage 24 VDC, +20% / -10%
Max Battery Current 1A
Messages
Data Format WAV-file, 16-bit PCM, mono
Supported Sample Rates (fs) 24 kHz, 22.05 kHz, 16 kHz
12 kHz, 11.025 kHz, 8 kHz
Frequency Response
@ fs=24kHz 100 Hz – 11 kHz (+1/-3 dB)
@ fs=22.05kHz 100 Hz – 10 kHz (+1/-3 dB )
@ fs=16kHz 100 Hz – 7.3 kHz (+1/-3 dB )
@ fs=12kHz 100 Hz – 5.5 kHz (+1/-3 dB)
@ fs=11.025kHz 100 Hz – 5 kHz (+1/-3 dB)
@ fs=8kHz 100 Hz – 3.6 kHz (+1/-3 dB)
Distortion <0.1% @ 1 kHz
S/N (flat at max volume) >80 dB
Memory Capacity 64 Mbit EEPROM
Recording/Playback Time 500 s @ fs=8 kHz …
167 s @ fs=24 kHz
Number of Messages max. 12
Supervision EEPROM Continuous checksum control
Supervision DAC 1 Hz pilot tone
Data Retention Time >10 years
Inputs
Loop-through audio input 1 (3-pin XLR, balanced)
Sensitivity 1 V
Impedance 20 kOhm
CMRR >25 dB (50Hz-20kHz)
Loop-through audio input 2 (Cinch, unbalanced)
Sensitivity 1 V
Impedance 20 kOhm
Outputs
Supervision Pilot Tone 20 kHz, ±10%, level adjustable
Line Output 1 (3-pin XLR, balanced)
Nominal Level 1 V, adjustable
Impedance <100 ohm
Line Output 2 (Cinch, unbalanced)
Nominal Level 1 V, adjustable
Impedance <100 Ohm
Controls
Trigger inputs (Screw)
Activation Contact closure
Supervision On trigger inputs 1-6, selectable
Supervision Method Cable loop resistance check
Control Outputs (Screw)
Message Active Relay 100 V, 2 A (voltage free, SPDT)
Fault Relay 100 V, 2 A (voltage free, SPDT)
RS232 (9-pin D-sub)
PC to LBB1965/00 115 kb/s, N, 8, 1, 0 (upload)
LBB 1965/00 - LBB 1925/10 19.2 kb/s, N, 8, 1, 0 (zone control)
Environmental
Operating Temperature -10°C to +55ºC
Storage Temperature -40°C to +70ºC
Relative Humidity <95%
Dimensions 56 x 430 x 270 mm
(19" wide, 1U high, with feet)
Weight approx. 3 kg
Ordering Information
Model & Description
LBB 1965/00 Plena Message Manager
- Plena Range 1
- LBB 19xx/10 Plena Mixer 2
- Amplifiers 2
- Plena Range 3
- 30 4
- Amplifier 5
- Plena Range 6
- LBB 1925/10 Plena System Pre 7
- Plena Range 8
- LBB 193x/x0 Plena Booster 9
- Plena Range 10
- Communication 10
- Features 11
- Functions 11
- Parts Included 11
- Certifications and Approvals 11
- Plena Range 12
- Plena Range 14
- Directional Condeser 15
- Microphone 15
- Plena Range 16
- LBB 1961/00 Plena BGM Source 17
- Plena Range 18
- LBB 1965/00 Plena Message 19
- Plena Range 20
- LBB 1968/00 Plena Feedback 21
- Suppressor 21
- Plena Range 22
- LBB 1970/00 Plena BGM/Paging 23
- Plena Range 24
- Plena Range 26
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