Bosch PRAESENSA Installation Manual
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Bosch PRAESENSA Installation Manual

Loudspeaker line isolator system
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Loudspeaker line isolator system
PRAESENSA
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Installation manual

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Summary of Contents for Bosch PRAESENSA

  • Page 1 Loudspeaker line isolator system PRAESENSA Installation manual...

  • Page 3: Table Of Contents

    Main functionality PRA-LID (LDB) Indicators, buttons and connections PRA-LIM (FIM) Indicators, buttons and connections Installation Fault contact Wiring Wiring configurations Installing PRA-LID (LDB) with PRAESENSA 4.4.1 Physical installation 4.4.2 End Of Line (EOL) monitoring 4.4.3 Powering of the PRA-LID (LDB) 4.4.4...

  • Page 4: Important Product Information Safety

    European Waste Electrical and Electronic Equipment Directive). To dispose of old electrical or electronic devices, you should use the return and collection systems put in place in the country concerned. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 5: About This Manual

    Notice of liability While every effort has been taken to ensure the accuracy of this document, neither Bosch Security Systems nor any of its official representatives shall have any liability to any person or entity with respect to any liability, loss or damage caused or alleged to be caused directly or indirectly by the information contained in this document.

  • Page 6: System Introduction

    The loudspeaker line isolator system for surveillance of loudspeaker lines in combination with PRAESENSA Public Address and Voice Alarm system. The main task of the loudspeaker line isolator system is to keep the audio message broadcast in the emergency zone in case of a loudspeaker line short‑circuit.

  • Page 7: Main Functionality

    The loudspeaker line isolator system catches multiple faults independently for different loudspeaker lines. It handles also multiple faults at the same time for the same loudspeaker line, regardless the type of the fault. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 8 DC‑blocking capacitor. Loudspeakers without a capacitor will be seen as a short‑circuit on the loudspeaker line. Figure 3.2: Typical loudspeaker line isolator duty cycle 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 9: Pra-Lid (Ldb) Indicators, Buttons And Connections

    Fault detection is always indicated by cyclic blinking. Blinking speed relates to the current status of the fault: – ORANGE fast (4 cycles/sec) - fault is currently detected. – ORANGE slow (1 cycle/sec) - fault was detected in the past and fixed. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 10 Loop short (memory) Blinking speed: Fault status: Fast 4 blinks/s active fault is currently detected Slow 1 blink/s memory fault was detected in the past and fixed Very slow 1 blink/4s 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 11: Pra-Lim (Fim) Indicators, Buttons And Connections

    BLUE slow Charging ORANGE fast LOOP SHORT side A (active) ORANGE slow LOOP SHORT side A (memory) ORANGE fast LOOP SHORT side B (active) ORANGE slow LOOP SHORT side B (memory) Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 12 T-branch SHORT or OPEN (memory) Blinking speed: Fault status: Fast 4 blinks/s active fault is currently detected Slow 1 blink/s memory fault was detected in the past and fixed Very slow 1 blink/4s 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 13: Installation

    Maximum length of loop cabling is 1000 m. Maximum length of T‑Branch line is also 1000 m. Wiring configurations Figure 4.1: Single LDB wiring diagram Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 14: Installing Pra-Lid (Ldb) With Praesensa

    This section will describe the installation and configuration of the Line Isolator Drive in combination with PRAESENSA to ensure an EN 54‑16 compliant installation. We strongly recommend to first install and connect LDB to PRAESENSA and the loudspeaker line. Having loudspeaker line connected to LDB gives you the DC‑power on the line, which is necessary for correct start‑up of FIM.

  • Page 15: Physical Installation

    The Enable Amplifier Detection option in the PRA-LID (LDB) is not working in combination with PRAESENSA. Therefore, make sure that this setting is disabled. This can be done via the Sniffer tool (see LDB Sniffer User guide for more details).

  • Page 16: Installing Pra-Lim (Fim) On A Loudspeaker Line

    EOL switch (6) should be in ON position only with EOL resistor connected to the termination of T‑Branch line. Short circuits on T‑Branch are detected and isolated regardless the EOL monitoring switch. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 17 SHORT indicator. Fix the cabling before further installation. Figure 4.6: Both sides of FIM properly connected to the loop 10. If needed, connect the loudspeaker or T Branch line to FIM T‑Branch connector. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 18 13. Proceed with installation of the next FIM module. 14. When the last FIM is installed on loop go back to the LDB and connect the returning loop cable to SECONDARY output connector of LDB. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 19 Figure 4.10: Complete loudspeaker line isolator system installation - with optional GROUND wire loop Refer to – Installing order PRA-LID (LDB), page 15 – PRA-LIM (FIM) Indicators, buttons and connections, page 11 Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 20: Examples Of Loudspeaker Line Isolator System Installations

    Loudspeaker line isolator system Examples of loudspeaker line isolator system installations Figure 5.1: Minimum configuration - equivalent to A/B line Figure 5.2: Loudspeakers only on the loop Figure 5.3: One FIM per each loudspeaker 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 21 Loudspeaker line isolator system Examples of loudspeaker line isolator system installations | en Figure 5.4: T-Branch lines with multiple loudspeakers Figure 5.5: Mixed configuration Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 22: Troubleshooting

    In this case short circuit is located adjacent to LDB, therefore LDB detects the fault directly and any attempt to reset LDB brings no result - LDB returns to SHORT active state. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 23 This area is isolated from the loop because of the fault. To find the end of isolated section, connect the SECONARY side back to LDB and find the first area with sound reproduction. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 24: Open Fault

    Loudspeaker line isolator will feed the loop with audio signal only from PRIMARY side. While listening to loudspeakers follow the loop and find first area (including T‑Branches) with no sound reproduction. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 25: Earth Fault

    If there are two (or more but even number) twists in loop cable polarity, some of FIM modules are not powered and therefore system is not fully operational. Loudspeaker line isolator however will not detect any fault and will act normally, as if the loop was correct. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 26: Pra-Lim (Fim)

    FIM indications table. See PRA-LIM (FIM) Indicators, buttons and connections, page 11 . Short loop, page 27 – Short on T-Branch, page 28 – – Open T-Branch, page 29 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 27: Short Loop

    B relays are closed. To reset FIM: Push RESET button on the FIM module. Or, send REMOTE FIM RESET command by pressing RESET button on LDB for 10 seconds or via Sniffer application. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 28 B relays are closed. To reset FIM: Push RESET button on the FIM module. Or, send REMOTE FIM RESET command by pressing RESET button on LDB for 10 seconds or via Sniffer application. 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 29 A and B relays are closed. To reset FIM: Push RESET button on the FIM module. Or, send REMOTE FIM RESET command by pressing RESET button on LDB for 10 seconds or via Sniffer application. Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...

  • Page 30: Routine Maintenance Inspection

    Confirm that EARTH “active” (fast) indication on LDB turns into “memory” (slow). – Reset LDB into QUIESCENT mode. Check cables and connectors between LDB and Public Address / Voice Alarm system. Refer to – PRA-LID (LDB), page 22 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 31: Technical Data

    Functional (Interfacing)     Status indicators 3 x LED indicator     User buttons Reset button + Service button     General Fault contact Pin-to ground (programmable)     Serial data communication RS-485 Maximum supply current, single DIN rail Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 32 DIN rail connector 5-points 3.5 mm screw terminal block AMP in 2-point 5 mm screw terminal block (+, -) LOOP out (PRI/SEC) 3-point 5 mm screw terminal block (L+, L-, optional GND) 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 33: Pra-Lim (Fim)

    50W (National standard may limit the number of loudspeakers) Short detection < 90 Ω (L+ to L-) Open detection > 360 kΩ (L+ to L-) (only T‑branch with EOL monitoring) Functional: (interfacing) Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 34 Mounting Surface mounting, on-speaker mounting Connections     LOOP / T-branch 3-way 5 mm WAGO push-in terminal block (L +,L-,GND) 0.8 - 2.5 mm2     Ext. LED 2-way 3.5 mm screw terminal block 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...

  • Page 35: Approvals

    EN IEC 63000 Conformity declarations Europe PRA-LIM (FIM) Emergency standard certifications Europe EN 54‑16 EN 54‑17 Regulatory areas Safety EN 62368‑1 EN 62479 Immunity EN 50130‑4 EN 55035 Emissions EN 61000-6-3 EN 61000-6-4 EN 55032 Environment EN IEC 63000 Conformity declarations Europe CE/CPR Bosch Security Systems B.V. 2021.07.28 | V1.00 | Installation manual...
  • Page 36 | Technical data Loudspeaker line isolator system 2021.07.28 | V1.00 | Bosch Security Systems B.V. Installation manual...
  • Page 38 Bosch Security Systems B.V. Torenallee 49 5617 BA Eindhoven Netherlands www.boschsecurity.com © Bosch Security Systems B.V., 2021 202107280839...

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Pra-lidF.01u.393.728F.01u.393.727

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