Plena Booster Amplifier Installation and Operating Manual en LBB 1930, LBB 1935, LBB 1938
Plena Booster Amplifier | Installation and Operating Manual | Important safeguards en | 3 Important safeguards 1 Read instructions - All the safety instructions for use should be read before the system is operated. 2 Retain instructions - The safety instructions and instructions for use should be retained for future reference. 3 Heed warnings - All warnings on the unit and in the operating instructions should be adhered to.
Plena Booster Amplifier | Installation and Operating Manual | About this manual en | 4 About this manual This manual provides all the information required to install and operate the unit. Conventions Warning Follow these instructions to prevent personal injury. Caution Follow these instructions to prevent damage to the equipment. Note Read these instructions for tips and other useful information. Safety precautions Warning Do not open the unit when it is connected to the mains.
Plena Booster Amplifier | Installation and Operating Manual | Table of contents en | 5 Table of contents Important safeguards..........................................................................................................................................................3 About this manual ..............................................................................................................................................................4 Safety precautions.................................
Plena Booster Amplifier | Installation and Operating Manual | Table of Contents Bosch Security Systems | 2003-09 | 3922 988 92983en en | 6
Plena Booster Amplifier | Installation and Operating Manual | About the equipment 1 en | 7 About the equipment VU LBB1930 100V Temp. Sensor LBB1935 70V 8Ohm Input 0 0 Loopthrough 100V Slave Input 100V 0 DC Fuse Fuse Power 230V 240V Power + DC In 24V - Figure 1.1 Overheat LBB1938 VU 100V Temp. Sensor 70V 8Ohm Input 1 Priority 0 0 Loopthrough 1 Input 2 Program 100V 70V F701 F702 Priority Only Loopthrough 2 No Priority 0 0 Input 1 Priority 2..
Plena Booster Amplifier | Installation and Operating Manual | About the equipment en | 8 The Plena Booster Amplifier range consists of three mono amplifiers with output powers of 120 W (LBB1930), 240 W (LBB1935) or 480 W (LBB1938). These booster amplifiers have 70 V and 100 V constant voltage outputs and a low impedance output for 8 Ohm loudspeakers. The amplifiers are protected against overload and short circuits.
Plena Booster Amplifier | Installation and Operating Manual | About the equipment en | 9 1.2 Controls and connections (LBB1930, LBB1935 - rear) LBB1930 LBB1935 230V- 240V- + 1 3 GND 2 GND 1 3 + 2 100V 70V 0 0 8 11 10 24V DC IN + 9 100V 0V Line fuse 250V T1A line in line out Apparatus delivered connected for 230V- 8 Warning 100V This apparatus must be earthed 1 2 3 4 5 6 7 Figure 1.
Plena Booster Amplifier | Installation and Operating Manual | Internal setting (LBB1938 only) 2 en | 10 Internal setting (LBB1938 only) LBB1938 F701 100V F702 70V Figure 2.1 The output voltage of the priority controlled loudspeaker outputs can be set to 70 V or 100 V. To this end, a high power fuse inside the unit is used as a voltage selector. Insert the high power fuse into fuse holder F701 for 100 V selection (default setting), or into fuse holder F702 for 70 V selection.
Plena Booster Amplifier | Installation and Operating Manual | Installation in rack 3 en | 11 Installation in rack LBB1930 LBB1935 Plena 0 dB -6 dB -20 dB Boost er Am plifier Power 1 1 LBB1938 Plena Boost er Am 0 dB -6 dB -20 dB plifier Power 1 Battery Overhea t 1 Figure 3.1 The booster amplifier is delivered for tabletop use, but you can mount it in a 19" rack using the brackets supplied with the unit. In case of rack mounting, you must: • remove the 4 feet from the bottom of the unit.
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections 4 en | 12 External settings and connections 4.
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections en | 13 4.2 Connecting the line input and loopthrough LBB1925/10 Tel/EM /Line G Trigger 1 Trigger 2 LBB19 89001 25/00 115/2392500 05 No. 0V~,50/60Hz 0 1.Audi 2.0V o+ 5.Allca 3.Audi 6.Data ll 4.24Vdo- 7.Data.c. 8.Chs.
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections en | 14 4.3 Connecting the priority input and using the control terminals (LBB1938 only) LBB1925/10 Tel/EMG Trigger 1 Trigger 2 Apparatus delivered connected for 230V- LBB1925/10 890019251005 115/230V~,50/60Hz No. 115V 230V 0 5. Allcall 6.DataPCAudoln 7.Data+ 8.Chs.GND 1. Audio+ 2.0V 3.Audio4.24Vd.c.
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections en | 15 4.4 100 V slave input LBB1930 LBB1935 230V- 240V- + 1 3 GND 2 GND 1 3 24V DC IN + + 2 100V 70V 0 0 8 100V 0V line in Line fuse 250V T1A Apparatus delivered connected for 230V- line out Warning 100V This apparatus must be earthed Figure 4.5 15 14 13 LBB1938 Input 1 Priority Input 1 Input 2 Slave Input Pr iority Enable 100V Loopthrough 1 Input 2 Program Loopthrough 2 2..24V GND 2..
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections en | 16 4.5 Connecting loudspeakers LBB1930 LBB1935 VU LBB1930 LBB1935 100V 70V 8Ohm + 1 100V 0V 3 GND 2 GND 1 3 + 2 100V 100V 230V70V 0 0 8 line out 24V - 240V- DC IN + Line fuse 250V T1A Warnin g This 0 0 100V 70V 0 0 24V DC IN + 8 apparat us must Appar atus delive conne red cted be earthed for 230V- Figure 4.
Plena Booster Amplifier | Installation and Operating Manual | External settings and connections en | 17 LBB1938 only: Ensure that the fuse for loudspeaker voltage selection is properly set (see chapter 2). The Priority Only and No Priority outputs are controlled by a priority relay. The Priority Only output only provides priority announcements, while the No Priority output just provides the program signal and switches OFF at priority calls.
Plena Booster Amplifier | Installation and Operating Manual | Operation of booster amplifier 5 en | 18 Operation of booster amplifier LBB1930 LBB1935 2 Plena Booster Amplifier 0 dB -6 dB -20 dB Power 1 Figure 5.1 2 LBB1938 Plena Booster Amplifier 0 dB -6 dB -20 dB Battery Overheat Power 1 3 4 5 Figure 5.2 Upon switching ON the amplifier using the power button (1), the green Power On LED (2) lights up. The VU-bar shows the output level of the amplifier.
Plena Booster Amplifier | Installation and Operating Manual | Technical data 6 Technical data 6.
Plena Booster Amplifier | Installation and Operating Manual | Technical data 6.4 Outputs Line loopthrough output (3-pin XLR, 6.
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