PLENA BGM/paging system PLN-2AIO120/00 Architects’ and Engineers’ Specifications
PLENA BGM/paging system PLN-2AIO120/00 Architects’ and Engineers’ Specifications The integrated BGM/paging system shall have an amplifier with a nominal output power of 120W RMS. It shall operate on 115Vac or 230Vac with a tolerance of +/10% and have its source power supplied by a detachable IEC power cord. A switch on the rear panel shall select between operation on 115Vac or 230Vac. It shall have a power switch on the front panel. The unit shall have 100V constant voltage outputs and 8Ohm low impedance outputs. Loudspeaker connections shall be on a terminal strip with safety insulation. The amplifier shall be protected against overload and short circuits. The unit shall have two front panel switches to direct the amplifier output to two separate zones. For each zone a separate 6-position volume control switch, with a control range of 15dB, shall be provided. Inputs to the unit shall include at least three electronically balanced microphone inputs and a music source input for an external music source. Microphone input 1 shall have a balanced 6.3mm phone jack connector on the front panel and a balanced 5-pin DIN connector with priority contacts on the rear panel. Microphone input 2 and 3 shall have a balanced 3-pin XLR connector. All microphone inputs shall have a switchable phantom powering circuit on the XLR and the DIN connectors. Microphone input 1 shall have a selectable speech filter for improved intelligibility. It shall be possible for microphone input 1 to have priority over all other microphone and music inputs, with an adjustable ducking (mute) level. Priority shall be given upon contact closure on the 5-pin DIN connector or if the signal level on input 1 exceeds a predefined value (VOX). A switchable 2-tone chime shall be provided to precede a priority announcement on priority contact closure. The music inputs shall have stereo Cinch connectors, internally converted to mono. A tape output shall be provided on Cinch connectors. The unit shall have, on its front panel, separate volume controls for each microphone input, a music selector switch to select between an external music source or the internal DVD/CD-player/tuner, together with a music volume control, a master volume control, as well as bass and treble shelving tone controls. A LED VU-meter shall allow for monitoring of the master output. The unit shall comprise a DVD/CD-player with single DVD/CD tray loading and a digitally controlled tuner for FM and AM reception. The DVD/CD-player shall be able to play normal audio & video DVD/CDs as well as long-play Mpeg2, MP3 encoded CDs or CD-R DVD-rom, DVD-r with MP3’s and display JPEG’s. MP3-files with bit-rates from 32kbps to 320kbps, mono/ stereo/joint-stereo, and both continuous bit-rates (CBR) and variable bit-rate (VBR) shall be supported. The unit shall support MP3-files stored in multi-level subdirectories (folders) for easy selection. The DVD/CD-player shall have a NEXT- and a PREVIOUS-key for track selection or folder selection, a PLAY/PAUSE-key and a STOP/EJECT-key on the front panel as well as on the remote control. Furthermore the unit shall provide the choice for a random play-list, have a repeat facility, and a facility to program a selection of tracks. A backlit LCD shall be provided to show the status of the DVD/CD-player. The unit shall be delivered with an IR remote control that controls both the DVD/CD drive as well as the tuner. The remote control shall operate the direct button of the drive and tuner and the on screen display. The FM/AM tuner shall use a frequency synthesizer for capture of radio stations. Separate antenna sockets for FM and AM on the rear of the unit shall be provided for connection to a cable antenna system or FM aerial, and to an AM loop antenna. It shall have 15 presets to store programs and keys for tuning and memory scanning. A backlit LCD shall be provided to show the status of the tuner. The display(s) of the unit shall show both the DVD/CD-player data and the tuner data simultaneously. The DVD part shall have a composite video output on unbalanced single cinch connector that is coded yellow. The DVD part shall have a component video output on three unbalanced single cinch connectors that are color coded. The DVD part shall have an S-video video output on mini DIN connector. If no external music source is selected, then the internal DVD/CD-player/tuner shall provide the tuner signal as long as the DVD/CD-player is not playing. If the DVD/CD-player is active, than the DVD/CD-player signal shall be provided. The CD-player and the tuner shall operate in mono, as is required for background music in PA-systems. The unit shall have an operating temperature range of +5 to +55C and shall have forced air-cooling with a built-in temperature controlled fan. The unit shall be 19”-wide and 3U-high. The unit shall comply to EN55103-1 and EN55103-2 for EMC emission and immunity. The integrated mixer/amplifier shall be a Plena model PLN-2AIO120/00, manufactured by Bosch Security Systems. 9922 141 80113 en 03-40 © 2003 Robert Bosch GmbH Data subject to change without notice.
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