Control Unit connections31 3 54 6 7 82 10 11 12 13 149Figure 6.2: CCSD‑CURDrear viewThe CCSD‑CURD has additional connections as indicated in the following table:Number Item Description1 FCC label Label showing FCC Declaration of Conformity.2 USB(CCSD‑CURD only)Micro USB connector for transferring the internal memory (recordings)to a PC. The micro USB connector cannot be used to directly recorddiscussions to a USB device. The larger USB connector on the frontpanel of the unit should be used for that purpose.Note: Recordings cannot be saved to the internal memory or a USBmemory stick when the micro USB connector is in use. Do not recorddiscussions during the transfer of files!3 RCA ‘Audio Out’(CCSD‑CURD only)4 x audio output connectors for individual microphone recording, e.g.for recording individual speakers in a courtroom.4 Product label Label showing information on the product, such as: product type, serialnumber, technical data, and CE mark.5 RCA ‘Audio Out (1)’ Audio output connector for connecting a PA or sound reinforcementsystem to the discussion system. Enables proceedings to betransmitted to an audience in the same room or an adjacent room.6 RCA ‘Audio Out (2)’ Used with RCA ‘Audio In (2)’.Audio output connector for either:– ‘Recorder’ for connecting an external recorder.– ‘Insertion’ for connecting an external audio processor.– ‘Telephone/mix minus’ for allowing a remote participant to join adiscussion via a telephone/video connection.– ‘Participant loudspeaker’ for distributing the participantloudspeaker signal to a sound reinforcement system.Note: Only one piece of audio equipment can be connected to ‘AudioOut (2)’ at a time. The output can be configured by selecting therequired option in the web browser interface. See Audio under theheading System settings, page 45.7 RCA ‘Audio In (1)’ Audio input connector for ‘Floor’, i.e. for connecting an external audiosource, such as a CD or DVD player.6.226 en | Connections Digital Discussion System2016.05 | V2.0 | Operation manual Bosch Security Systems B.V.