Description
Bosch LBB 1965/00 Plena Message Manager
- Highly flexible stand‑alone digital message player
- Up to 12 messages and 12 trigger inputs
- Downloads messages from a PC in WAV format
- Compliant with standards for emergency sound systems
- Zone control for Plena system preamplifier LBB 1925/10
- Front panel control and remote control
The Bosch LBB 1965/00 is a digital message player with a capacity of up to 12 pre-recorded messages with 12 trigger inputs.
Ideal for making spot announcements in theme parks, supermarkets etc as well as being suitable for emergency evacuation announcements.
The LBB1965/00 can be programmed with up to 12 messages uploaded from a PC and stored on the internal EEPROM. The messages can be any length up to the maximum capacity of 500 seconds across all messages.
Messages
The standard WAV format is used for messages with sample rates of 8 to 24 kHz with 16-bit word length (linear PCM). This gives up to 500 sec of recording time with a CD-quality signal-to-noise ratio.
The use of linear PCM instead of a compressed audio format, such as MP3, ADPCM, and u-law/A-law, ensures high-quality playback of all types of audio signals, including sound effects and special tones such as attention chimes.
The unit has 12 contact closure trigger inputs for announcements. Each can be configured for a sequence of up to 4 messages from those available. In this way, messages can be used in combination with other messages, optimizing flexibility and storage space usage.
When used together with the 6-zone LBB 1925/10 Plena System Pre-Amplifier, zone selection can be configured for each trigger input. The message manager communicates this selection to the LBB 1925/10 Pre-Amplifier via an RS-232 connection. Continuous activation of a trigger input causes the corresponding message sequence to repeat.
Trigger Inputs
Integrity and Dependability
A 20 kHz pilot tone can be mixed with the output signal to supervise the link to the next amplifier. This also works for loudspeaker supervision in combination with 20 kHz detectors. Any failure causes a red LED fault indication and activates a fault output contact.
Updating
General
Downloads messages from a PC in WAV format
Compliant with standards for emergency sound systems
Zone control for LBB 1925/10 Plena System Pre-Amplifier
SPECIFICATIONS
Power Supply | Mains: Voltage: 230 / 115 VAC, ±10%, 50/60 Hz Inrush Current: 1.5 A at 230 VAC / 3 A at 115 VAC Maximum Power Consumption: 50 VA |
Battery | Power Supply: Voltage: 24 VDC, ±15% Current Maximum: 1 A |
Supported | Sample Rates (fs): 24 / 22.05 / 16 / 12 / 11.025 / 8 kHz |
Frequency Response | @ fs = 24 kHz: 100 Hz to 11 kHz (+1 / -3 dB) @ fs = 22.05 kHz: 100 Hz to 10 kHz (+1 / -3 dB) @ fs = 16 kHz: 100 Hz to 7.3 kHz (+1 / -3 dB) @ fs = 12 kHz: 100 Hz to 5.5 kHz (+1 / -3 dB) @ fs = 11.025 kHz: 100 Hz to 5 kHz (+1 / -3 dB) @ fs = 8 kHz: 100 Hz to 3.6 kHz (+1 / -3 dB) |
Distortion | <0.1% at 1 kHz |
S/N | Flat at Maximum Volume: >80 dB |
DAC | Supervision: 1 Hz pilot tone |
Line Input | Balanced: 1x |
Sensitivity | 1 V |
Impedance | 20 kΩ |
CMRR | >25 dB (50 Hz to 20 kHz) |
Line Output | Balanced: 1x |
Nominal Level | 1 V, adjustable |
Impedance | <100 Ω |
Line Input | Unbalanced: 1x |
Sensitivity | 1 V |
Impedance | 20 kΩ |
Line Output | Unbalanced: 1x |
Nominal Level | 1 V, adjustable |
Impedance | <100 Ω |
Trigger Input | 6x |
Activation | Contact closure |
Method | Supervision: Cable loop resistance check |
Output | Message Active: 1x |
Relays | 100 V, 2 A (voltage free, SPDT) |
Output | Fault: 1x |
Relays | 100 V, 2 A (voltage free, SPDT) |
Connection | (RS-232): Inter-Connection: 1x |
Protocol | PC: 115 kb/s, N, 8, 1, 0 (upload) LBB 1925/10: 19.2 kb/s, N, 8, 1, 0 (zone control) |
Data Format | WAV-file, 16-bit PCM, mono |
Memory Capacity | 64 Mb EEPROM |
Recording/Playback Time | 500 sec @ fs = 8 kHz 167 sec @ fs = 24 kHz |
Number of Messages | 12 maximum |
Time | Data Retention: >10 years |
Operating Temperature | 14 to +131°F (-10 to +55°C) |
Storage Temperature | -40 to +158°F (-40 to +70°C) |
Relative Humidity | <95% |
Safety | According to EN 60065 |
Immunity | According to EN 55103-2 |
Emission | According to EN 55103-1 |
Certification | Europe CE Declaration of Conformity |
Mounting | Stand-alone, 19.0″ (482.6 mm) rack |
Dimensions | 2.20 x 16.92 x 10.62″ (56.00 x 430.00 x 270.00 mm) Wide: 19.0″ (482.6 mm) Height: 1U with feet |
Weight | Approximately: 6.6 lb (3.0 kg) |
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