Commnications Systems LBC 311/x1 Panel Lodspeakers LBC 311/x1 Panel Lodspeakers High-qality speech and msic reprodction Two-way system Simple power setting Flsh-monting in walls, ceilings, or frnitre Srface-monting and flsh monting boxes The Bosch panel lodspeakers and matching monting boxes are ideal for bilt-in sond installations in shops, department stores, schools, offices, hotels and restarants. They are manfactred and finished to the same exacting standards as all Bosch pblic address systems and components, garanteeing high qality, and compatibility throghot the range. Fnctions The 9 W (max. power) panel is eqipped with a woofer and tweeter, enabling excellent qality speech and msic reprodction. They are available with or withot an integral volme control (LBC 311/51 and LBC 311/41, respectively). Nominal otpt power can be preset to fll, half, or qarter-power radiation (in 3 db steps) by connecting the 1 V line to the appropriate primary taps on the matching transformer via a 3-pole screw connector. The off-white (RAL 91) panels are injection-molded from self-extingishing, high-impact ABS material (according to UL 94V). They are finished with an attractive perforated metal grill. The panel lodspeakers flsh-mont into rectanglar ctots in cavity walls, ceilings, frnitre or cstommade cabinets. The panels have provision on the rear side for monting an optional line/lodspeaker spervision board. The lodspeaker has bilt-in protection to ensre that, in the event of a fire, damage to the lodspeaker does not reslt in failre of the circit to which it is connected. In this way, system integrity is maintained, ensring lodspeakers in other areas can still be sed to inform people of the sitation. The lodspeaker has a ceramic terminal block, thermal fse, and heatresistant, high-temperatre wiring. Certifications and approvals Voice alarm lodspeakers are specifically designed for se in bildings, where performance of systems for verbal evacation annoncements is governed by reglations. The LBC 311/x1 is designed for se in voice alarm systems. Safety acc. to EN 665 Emergency acc. to BS 5839 8 Self-extingishing acc. to UL 94 V
2 LBC 311/x1 Panel Lodspeakers Installation/configration notes LBC 311/41 LBC 311/51 Dimensions in mm (in) ~ Dimensions in mm (inch) ~ Circit diagram Circit diagram Polar diagram horizontal (measred with pink noise) Polar diagram vertical (measred with pink noise)
3 LBC 311/x1 Panel Lodspeakers LBC 312/1 Monting box for srface monting Freqency response 125 25 5 1 k 2 k 4 k 8 k SPL 1.1 85 9 88 88 92 9 89 SPL max. 93 98 96 96 1 98 97 Dimensions in mm (in) with knockot boxes Q-factor 5.1 3.9 2.1 3.7 7.4 9.1 31. 6 Efficien cy.8.32.37.2 1.2 7.1 4. 3 H. angle 18 18 16 16 11 5 85 45 V. angle 18 18 16 18 85 1 Acostical performance specified per octave 5 Srface monting LBC 313/1 Monting box for flsh monting 176 6.93 148 5.83 12 4.72 Recessed monting in walls and ceilings. Dimensions in mm (inch) 27 1.63 Two monting boxes are available for srface monting onto hard srfaces or flsh-monting into non-cavity walls. The LBC 312/1 accommodates the panel lodspeaker for a self-contained nit for srface monting. Dimensions in mm (in) 245 9.65 28 11.2 64 2.52
4 LBC 311/x1 Panel Lodspeakers Mechanical LBC 312/1 165 x 284 x 64 mm (6.49 x 11.18 x 2.52 inch) 238 g (8.4 oz) Color White (RAL 91) Mechanical LBC 313/1 176 x 28 x 64 mm (6.49 x 11.18 x 2.52 inch) 37 g (1.83 oz) Color White (RAL 91) Environmental Flsh monting Technical specifications Electrical* LBC 311/41 and LBC 311/51 Max power Rated power (PHC) Sond pressre level at 6 W / 1 W (1 k, 1 m) Effective freqency range (-1 db) Opening angle 9 W 6 / 3 / 1.5 /.75 W 96 db / 88 db (SPL) 75 to 18 k 1 k / 4 k (-6 db) horizontal 16 / 85 vertical 18 / 1 Rated voltage Rated impedance Connector 1 V 1667 ohm 2-pole screw * Technical performance data acc. to IEC 6268-5 Mechanical Operating temperatre Storage temperatre Relative hmidity <95% Ordering information -25 ºC to +55 ºC (-13 ºF to +131 ºF) -4 ºC to +7 ºC (-4 ºF to +158 ºF) LBC 311/41 Panel Lodspeaker withot Volme Control withot Volme Control Order nmber LBC311/41 LBC 311/51 Panel Lodspeaker with Volme Control with Volme Control Order nmber LBC311/51 Accessories LBC 312/1 Srface Monting Box Srface Monting Box Order nmber LBC312/1 LBC 313/1 Flsh Monting Box Flsh Monting Box Order nmber LBC313/1 Monting ct-ot (H x W) 165 x 284 x 59.5 mm (6.49 x 11.18 x 2.34 inch) 143 x 238 mm (5.63 x 9.37 inch) 1.2 kg (2.64 lb) Color White (RAL 91) Speaker size 2 / 4 Magnet weight 48 g / 15 g (1.7 oz / 5.3 oz)
5 LBC 311/x1 Panel Lodspeakers Represented by: Americas: Erope, Middle East, Africa: Asia-Pacific: China: America Latina: Bosch Secrity Systems, Inc. Bosch Secrity Systems B.V. Robert Bosch (SEA) Pte Ltd, Secrity Bosch (Shanghai) Secrity Systems Ltd. Robert Bosch Ltda Secrity Systems Division 12 Portland Avene Soth Brnsville MN 55337, USA Phone: +1-8-392-3497 Fax: +1-8-955-6831 adiospport@s.bosch.com P.O. Box 82 5617 BA Eindhoven, The Netherlands Phone: + 31 4 2577 284 Fax: +31 4 2577 33 emea.secritysystems@bosch.com Systems 11 Bishan Street 21 Singapore 573943 Phone: +65 6571 288 Fax: +65 6571 2699 apr.secritysystems@bosch.com www.boschsecrity.asia 21 Bilding, No. 333 Fqan Road North IBP Changning District, Shanghai 2335 China Phone +86 21 22181111 Fax: +86 21 22182398.cn Via Anhangera, Km 98 CEP 1365-9 Campinas, Sao Palo, Brazil Phone: +55 19 213 286 Fax: +55 19 213 2862 al.secritysystems@bosch.com Bosch Secrity Systems 212 Data sbject to change withot notice 19235147 en, V2, 24. Nov 212