Works Department Tender

SITC of Digital Chairman microphone Unit Limiter 10dB above nominal level loudspeaker / headphone Gain Gain reduction due to number of open microphones (NOM) NOM +- 1 dB Total Harmonic Distortion Nominal input (85 dB SPL) 0.5,Max. input (110 dB SPL) 0.5 Sample Rate Recording 32 kHz,Playback 32, 44.1,48 kHz Bit Rate Recording 64, 96,128,192, 256 KBit/sec, Playback any bitrate Immunity to mobile phone interference. Provision of chairperson can press and hold in the priority button to overrule all participant microphones. Functions: Possible -to- speak indication, Request ‑to‑ speak indication. Built-in loudspeaker with volume control. Headphones socket:built‑in 3.5 mm (0.14 in) stereo headphones. Built‑in volume control for headphones. Color-coded LED indicator above microphone button for showing the following states: microphone on, request‑to‑speak, and possible‑to‑speak. (Make: BOSCH Model no. CCS 700-CU)

SITC of Digital Delegate microphone Unit Limiter 10dB above nominal level loudspeaker / headphone Gain Gain reduction due to number of open microphones (NOM) NOM +- 1 dB Total Harmonic Distortion Nominal input (85 dB SPL) 0.5,Max. input (110 dB SPL) 0.5 Sample Rate Recording 32 kHz,Playback 32,44.1,48 kHz Bit Rate Recording 64,96,128,192,256 KBit/sec,Playback any bitrate Immunity to mobile phone interference. Provision of chairperson can press and hold in the priority button to overrule all participant microphones. Functions: Possible -to- speak indication, Request ‑to‑ speak indication. Built-in loudspeaker with volume control. Headphones socket:built‑in 3.5 mm (0.14 in) stereo headphones. Built‑in volume control for headphones. Color-coded LED indicator above microphone button for showing the following states: microphone on, request‑to‑speak, and possible‑to‑speak. (Make: BOSCH Model no. CCS 700-DL)

SITC of Digital Central Control Unit for the CCS 700 Discussion Discussion control without operator. The CU can be setup to operate standalone without the need for an operator. The following 5 modes can be chosen using a rotary control on the unit’s top panel: Open mode – allows selection of one to four microphones (excluded chairmen microphones) which can be simultaneously active Open mode with auto-switch-off – allows selection of one to four microphones (excluded chairmen microphones) which can be simultaneously active. If the delegate does not speak for 30 seconds, microphones are automatically switched off Override mode – delegates can override each other simply by activating their microphones. Only one microphone can be active at any one time. (Note: In override mode, delegates cannot override chairmen) Chairman only mode – only chairmen can speak. Delegate microphones cannot be activated, even when a chairman is not speaking Test mode –checks if system connections are correct. All microphone light rings and contribution unit LEDs light up to indicate that units are properly connected Supplies power for up to 50 contribution units The CU has two trunk outputs for the loop-through connection of contribution units. It is possible to connect 25 contribution units to each trunk output, with a maximum system cable length of 100 m (109.3 yards). Provides control for up to 150 contribution units Up to 3 CUs can be used together in a discussion system to power and control a maximum of 150 contribution units. In this configuration a single CU acts as a master controller for the entire system. Built-in monitor loudspeaker The built-in monitor loudspeaker and headphone socket allow the conference to be monitored. Interfaces the system with external equipment The following equipment can be interfaced to the CCS Ultro Discussion System through the CU: External wired or wireless microphone – for guest speakers or audience participation. (Note: The external microphone is muted when the priority button on a chairman unit is pressed, and when the system is operating in ‘chairman only’ mode) External PA system – for transmitting the proceedings to an audience in the same room or an adjacent room Tape recorder – for external recording and playing back meetings and discussions Audio equipment – for providing background music Telephone coupler – to allow a remote delegate to participate via telephone External audio processing – an insertion connector is provided