Bosch CCSD-FDL Flush Discussion Device / Fixed Long Microphone / 2m Cable / Built-in Speaker

Description

The CCSD-FDL flush discussion device is a flush-mounted conference unit featuring a fixed long microphone and a 2 meter attached cable. It provides a compact discussion endpoint with an integrated loudspeaker and a visible speak indicator to signal active microphones. The design emphasizes reliable speech capture and clean integration into meeting-room furniture.

Key features include a fixed long microphone element that covers a wide frequency range, a unique possible-to-speak indicator to manage turn-taking, and a built-in loudspeaker that reproduces local audio. The unit is engineered to maintain low susceptibility to mobile phone interference – improving audio clarity in busy RF environments. The 2 meter attached cable simplifies connection to central conference controllers and audio infrastructure.

Performance details include a frequency response of 30-20000 Hz and nominal acoustic input and output levels of 85 dB SPL and 72 dB SPL respectively. Power consumption is specified at 1.50 W, making the device energy efficient in continuous operation. Environmental limits are 0-35 °C operating temperature and up to 95% non-condensing relative humidity, with storage rated -40-70 °C.

Connectivity is delivered through the fixed 2m attached cable and the flush-mounted form factor supports discrete installation in desks or podiums. The device is constructed from ABS plastic with a polycarbonate cover to withstand standard use and to provide a neat finish. Mounting and wiring follow standard flush installation practices common in AV and conferencing setups.

Typical applications include boardrooms, council chambers and courtrooms where a fixed flush microphone with local monitoring and clear speaker output is required. The visible speak indicator helps moderators and participants manage turns and maintain order in formal discussions. The low susceptibility to mobile phones reduces interruptions caused by RF noise while preserving intelligibility.

Installation and maintenance are straightforward due to the flush-mounted design and the attached cable that removes the need for separate microphone cabling on initial setup. The ABS and polycarbonate construction offers durable service life while remaining lightweight at approximately 560 g. Overall, the CCSD-FDL offers a practical balance of audio performance, installation convenience and discussion management features.