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Bosch Appliances LBB 1903/10 manual

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Table of contents for the manual

  • Page 1

    Plena Mixer Amplifier Installat ion and Operatin g Manual L B B 19 0 3 /1 0 , L B B 19 0 6 /10 , L B B 191 2 /10 , L B B 19 14 /10 en[...]

  • Page 2

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  • Page 3

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | Important s afeguards en | 3 Import ant safeguards 1 Read instructions - All the safety instructions for use should be read before the system is operated. 2 Retain instructions - The safety ins tructions and instructions fo r use shoul[...]

  • Page 4

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installatio n and Operating Manual | Abou t this manual en | 4 About t his manual This manual provides al l the information required to install and opera te the unit. Conventions Safet y prec aut ions Warning Fol low these instru ctions to prevent p ersonal injury . Caut[...]

  • Page 5

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manu al | T able of contents en | 5 T able of content s Important safeguards ........................................................................................................... ............................................... 3 About thi[...]

  • Page 6

    Plena Mixer Amplifier | Installation and Operating Manu al | T able of Contents en | 6 Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en[...]

  • Page 7

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 7 1 About t he mixer amplifier Figure 1.1 The Plena Mixer Amplifier is a mono amplifier for mixing up to 4 micro phone signals and (b ackground) music signals. You can adjust the volume of ea ch input separately in order to obt ai[...]

  • Page 8

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 8 1 . 1 Cont rols and connections ( front ) Figure 1.2 3 0d B -6 dB -20 dB Power 1 4 2 Line CD AU X Master Zone 1 Zone 2 Select Plena Mixer Amplifier 2 1 5 6 7 10 11 12 13 3 4 8 9 Only for LB B1 9 1 4/ 1 0 1 P o wer bu tton 2 VU-m[...]

  • Page 9

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 9 1 .2 Cont rols and connections ( rear ) Figure 1.3 1 Chime ON/OFF switch 2 Priority mi crophone inp ut (5-pole DIN /balanced with Phantom pow er) 3 Input 1 microphone inpu t (6.3 mm phono jack/ balanced with Phantom po w er) 4 M[...]

  • Page 10

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 0 2 Int ernal set tings Figure 2.1 Figure 2.2 2. 1 Set t ing the VOX for microphone input 1 Input 1 has the option of a voice-co ntrolled priority (VOX), which will overrule all othe r inputs when it recognizes a voice signal. T[...]

  • Page 11

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 1 2.3 Set t ing the chime volume Adjusting the potentiometer VR401 change s the volume of the chime attention si gnal, preceding a priority call. Be careful not to adjust VR70 1; this is a power amplifier factory adjustment. 2.4[...]

  • Page 12

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 2 3 Inst allat ion in rack Figure 3.1 The mixer amplifier is deliv ered for tabletop use, but you can moun t it in a 19" rack. If you mount the amplifie r in a rack, you must: • ensure that the unit does not ex ceed the o[...]

  • Page 13

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 3 4 Ext ernal set tings and connect ions 4. 1 Connect t he DC supply ( bat tery ) Figure 4.1 The mixer amplifier has a 24 Vdc input (terminal screw), which you can use to connect a back up power supp ly, e.g. batteries. You can [...]

  • Page 14

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 4 Microphone 1 input has a 5-pole DIN (for a 3 or 5-po le DIN microphone) and a 6. 3-mm phone jack connector wired in parallel. Only when connecting a microphone with a pr iority contact on pin 4 and 5 of the 5-pole DIN connecto[...]

  • Page 15

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 5 4.4 Microphone input s Figure 4.4 Dependent on the microphone choo se between the XLR with Phantom power and the 6.3 mm phono jack connector. Use an extension cable (1) if necessary. When using input 3 or 4 to connect micropho[...]

  • Page 16

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 6 4.6 Music source inputs Figure 4.6 When using a CD player, tape recorder or tuner for background music, co nnect the line-out co nnectors of the music source to the appropriate line -in connectors of the mixer am plifier (e.g.[...]

  • Page 17

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 7 4.8 Connecti ng loudspeakers Figure 4.8 4.8. 1 C onst ant voltage loudspeakers The mixer amplif ier can drive 100 V constant voltage lo udspeakers at full powe r (100 V) or half power (7 0 V). Connect the loudspeakers in paral[...]

  • Page 18

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 8 4.8. 2 Low impedanc e loudspeakers Connect low impedance loudspea kers to the 8 Ohm/0 terminals. This outpu t can deliver the rated output power into an 8 Ohm load. Connect multiple loudspeakers in a series/parallel-arrangemen[...]

  • Page 19

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 1 9 5 Operat ion of mixer amplifier Figure 4.6 Use the supplied mains cord to connect the system to the mains supply. Figure 5.1 5. 1 Source selection • Use the music source se lector (8) to se lect one of the connected music so[...]

  • Page 20

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 20 6 T echnic al data 6. 1 Elect ric al Mains voltage 230/115 Vac, ±10%, 50/60 Hz Max mains power consumption LBB1903/10 100 VA LBB1906/10 200 VA LBB1912/10, LBB1914/10 400 VA Max mains inrush current LBB1903/10 4.5 A/9 A (230/11[...]

  • Page 21

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 2 1 Music input ( Cinch, st ereo converted t o mono) Sensitivity 200 mV Impeda nce 22 kOhm S/N (flat at m ax volume) > 70 dB S/N (flat at m in volume/muted) > 75 dB Headroom > 25 dB Emergency / telephone ( Screw , balance[...]

  • Page 22

    Bosch Security Systems | 20 03-09 | 3922 9 88 92883 en Plena Mixer Amplifier | Installation and Operating Manual | en | 22 6.6 General EMC emission acc. to EN 55103-1 EMC immunity acc. to EN 55103-2 Acoustic noise level of fan < 40 dB SPL @ 1 m (LBB1912/10 and LBB1914/10 only) Dimensions 100 x 430 x 270 mm (19 ” wide, 2U high) Weight LBB1903/1[...]

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    For more information vi sit www.boschsecuritysystems.com © Bosch Security Systems B.V. Data subject to change without notice 2003-09 | 3922 988 92883en[...]