LBB 442x/xx Power Amplifiers

Transcription

1 Commnications Systems LBB 442x/xx Power Amplifiers LBB 442x/xx Power Amplifiers 2, 4, or 8 adio otpts (selection from 00 / 70 / 50 V otpts) Adio processing and delay for each amplifier channel Amplifier spervision and spare amplifier switching Lodspeaker line and lodspeaker spervision ( only line spervision) Eight control inpts and, 2, 4 or 8 control otpts There are for types of power amplifier nits in the Praesideo prodct range. These differ in the nmber of amplifier channels per frame: one, two, for, or eight. The overall power rating is 500 watts for all of the amplifiers. The power amplifiers can be set to 00 V, 70 V and 50 V otpt tappings. They have short-to-grond and short-circit detection fnctions, and can generate their own pilot tone for spervision prposes. Fnctions The power amplifiers receive inpt signals over the network. They also have two axiliary adio inpts (for for ) for local adio. Their eight control inpts are freely programmable for system actions, and priorities can be assigned to these inpts. Each control inpt has the ability to monitor the attached line for open and short-circits. Control otpts are freely programmable for falts and call related actions. The 2 x 6-character display and the rotary control enable local stats enqiries. The display shows the VU-meter reading, when the adio monitoring mode is active. Adio can be monitored by headphone. The nits are self-monitoring and continally report their stats to the network controller. They spport both single branch and redndant loop cabling. The amplifiers have a changeover facility for spare power amplifier switching. Changeover relays are inclded with the nits. The amplifiers have a 48 V DC back-p spply inpt. The digital adio processing can handle three parametric eqalization sections and two shelving eqalization sections per channel with configrable adio delay. Controls and indicators 2 x 6-character LCD for stats display Rotary/psh control btton Mains switch Interconnections Mains inpt Battery backp inpt Two system network connections Two mic/line inpts (for for ) 00 V, 70 V or 50 V otpts (for each amplifier channel) 50 V otpt Eight programmable control inpts Control otpt (for each amplifier channel) Headphone otpt

2 2 LBB 442x/xx Power Amplifiers Spare amplifier connection (for each amplifier channel) Certifications and approvals Safety acc. to IEC Immnity acc. to EN / EN Emissions EVAC (TÜV certified) acc. to IEC acc. to EN / FCC-47part 5B Region Erope Certification CE CE GL Rear view of LBB 442/0 Power Amplifier x 500 W Installation/configration notes Rear view of LBB 4422/0 Power Amplifier 2 x 250 W Rear view of LBB 4424/0 Power Amplifier 4 x 25 W Adio inpts, 2 x or 4 x 2 Control inpts 3 Plastic optical fiber network 4 Lodspeaker otpts, x, 2 x, 4 x, 8 x 5 Spare amplifier inpt 6 Control otpts, x, 2 x, 4 x, 8 x 7 Mains inpt 8 48 V backp spply 9 Display and control 0 2 Network processor and DSP Network redndancy switching Power spply Rear view of Power Amplifier 8 x 60 W Parts inclded Qantit y Component LBB 442x/xx Power Amplifier Power cord Set of monting brackets (large) for 9 rack Set of feet Set of connectors

3 3 LBB 442x/xx Power Amplifiers Technical specifications Electrical Mains power spply Control inpts Operation 8 x Removable screw terminals Closing contact (with spervision) Voltage 00 to 240 VAC ±0%, 50/60 Hz Control otpts x per amplifier channel Power consmption Pmax -3 db* / idle** / standby Removable screw terminals LBB 442/0 LBB 4422/0 LBB 4424/0 Battery power spply 404 / 56 / 28 W 402 / 60 / 28 W 426 / 83 / 37 W 433 / 90 / 32 W * Alarm tone level ** With pilot tone 5 V Lodspeaker otpts LBB 442/0 Rated load resistance 20 ohm (00 V); 0 ohm (70 V) Rated load capacitance 250 nf (00 V); 500 nf (70 V) 500 W ( min. at 55 C) 250 W (30 min. at 55 C, cont. at 30 C) 25 W (cont. at 55 C) Voltage 48 VDC -0% to +20% Power consmption LBB 442/0 LBB 4422/0 LBB 4424/0 Pmax -3 db* / idle** / standby 380 / 46 / 20 W 378 / 50 / 2 W 399 / 76 / 28 W 397 / 63 / 22 W * Alarm tone level ** With pilot tone 5 V Mic/line inpts 2 x (4 x for ) Connector Line Freqency response 6-pole header for removable screw connector (mono, balanced) Hz and 20 khz (± db) >87 dba Lodspeaker otpts LBB 4422/0 Rated load resistance 40 ohm (00 V); 20 ohm (70 V) Rated load capacitance 25 nf (00 V); 250 nf (70 V) 250 W ( min. at 55 C) 25 W (30 min. at 55 C, cont. at 30 C) 60 W (cont. at 55 C) Lodspeaker otpts LBB 4424/0 Rated load resistance 80 ohm (00 V); 40 ohm (70 V) Rated load capacitance 60 nf (00 V); 25 nf (70 V) 25 W ( min. at 55 C) 60 W (30 min. at 55 C, cont. at 30 C) 30 W (cont. at 55 C) CMRR Inpt range Inpt impedance Mic Freqency response Nominal inpt level CMRR Inpt impedance Phantom spply Inpt range >40 khz -6 dbv to 6 dbv 22 kohm Hz and 6 khz -57 dbv >62 dba with 25 db headroom 40 db at khz 360 ohm 2 V ± 5 ma -7 dbv to +8 dbv ref nominal inpt vale Lodspeaker otpts Rated load resistance 60 ohm (00 V); 80 ohm (70 V) Rated load capacitance 30 nf (00 V); 60 nf (70 V) Freqency response Crosstalk Distortion 60 W ( min. at 55 C) 30 W (30 min. at 55 C, cont. at 30 C) 5 W (cont. at 55 C) 9-pole header for removable screw connector 60 Hz (80 Hz for ) to 9 khz (-3 db) >85 db (no pilot tone) <80 db at nominal load for khz <0.3% (@ 50% of rated otpt power

4 4 LBB 442x/xx Power Amplifiers Mechanical Dimensions (H x W x D) for tabletop se, with feet for 9 rack se, with brackets in front of brackets behind brackets Weight LBB 442/0 LBB 4422/0 LBB 4424/0 Monting Color Environmental Operating temperatre Storage temperatre 92 x 440 x 400 mm (3.6 x 7.3 x 5.7 in) 88 x 483 x 400 mm (3.5 x 9 x 5.7 in) 40 mm (.6 in) 360 mm (4.2 in) 3 kg (28.7 lb) 4 kg (30.9 lb) 6.5 kg (36.4 lb) 4.5 kg (32 lb) Standalone; 9 -rack Charcoal with silver -5 ºC to +55 ºC (+23 ºF to +3 ºF) -40 ºC to +70 ºC (-40 ºF to +58 ºF) US Power Amplifier 8 x 60 W 8-channel power amplifier with Praesideo network connection, 8 x 60 W, rack nit 2 RU, USA version. Order nmber LBB4428/00-US Accessories LBB 4440/00 Spervision Control Board Line and lodspeaker spervision master PCB for monting in a Praesideo network connected power amplifier, one board is needed per channel. Order nmber LBB4440/00 LBB 4442/00 Line Spervision Set Master and slave PCB for spervisiing a single lodspeaker line, the master is monted in a Praesideo network connected power amplifier (one per channel), the slave is connected at the end of the lodspeaker line. Order nmber LBB4442/00 Relative hmidity 5% to 90% Air pressre 600 to 00 h Pa Ordering information LBB 442/0 Power Amplifier x 500 W x 500W Order nmber LBB442/0 LBB 4422/0 Power Amplifier 2 x 250 W 2 x 250 W Order nmber LBB4422/0 LBB 4424/0 Power Amplifier 4 x 25 W 4 x 25 W Order nmber LBB4424/0 Power Amplifier 8 x 60 W Rack nit 2 HU, 8-channel power amplifier with Praesideo network connection, 8 x 60 W. Order nmber LBB4428/00 LBB 442/0 US Power Amplifier x 500 W US version, x 500 W Order nmber LBB442/0-US LBB 4422/0 US Power Amplifier 2 x 250 W US version, 2 x 250 W Order nmber LBB4422/0-US LBB 4424/0 US Power Amplifier 4 x 25 W US version, 4 x 25 W Order nmber LBB4424/0-US

5 5 LBB 442x/xx Power Amplifiers 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 2000 Portland Avene Soth Brnsville MN 55337, USA Phone: Fax: P.O. Box BA Eindhoven, The Netherlands Phone: Fax: [email protected] Systems Bishan Street 2 Singapore Phone: Fax: [email protected] 20 Bilding, No. 333 Fqan Road North IBP Changning District, Shanghai China Phone Fax: Via Anhangera, Km 98 CEP Campinas, Sao Palo, Brazil Phone: Fax: [email protected] Bosch Secrity Systems 205 Data sbject to change withot notice en, V5, 0. Jl 205