Technical data

8 en | Control Unit (CU) CCS 900 Ultro
IOM_CCS900 | V1.0 | 2010.06 Installation and Operating Manual Bosch Security Systems B.V.
10. Line input and output for connecting a PA-system or other audio equipment.
11. Telephone coupler input and output for connecting a remote participant.
12. Insertion connection. To connect an external audio equalizer for speech quality
improvement under difficult acoustic conditions (1 = without equalizer, 0 = insertion
connection is internally open, providing means to connect an external equalizer in the
path from microphone signals to delegate/chairman loudspeakers).
13. Digital Acoustic Feedback Suppressor (DAFS) switch to activate or deactivate the DAFS
(optional).
14. USB connector. Used for downloading recorded speech to a PC (optional).
15. Mains input connection. Use the included mains cord to connect the CU to the mains
socket. In some countries it may be necessary to replace the supplied mains cable by a
local one. Brown = live, blue = neutral and green/yellow = earth. (Replacement and color
indication not applicable to mains cords for North America).
NOTICE!
The telephone input signal to the CU is not added to the telephone output signal from the CU
to prevent line echo due to feedback.
NOTICE!
Position "1" required for internal loop-through of the microphone signals to the Delegate /
Chairman Unit loudspeakers.