Bosch CCSD-EXU Product Highlights
Explore the key capabilities of the Bosch CCSD-EXU System Extension Unit for larger CCS 1000 D systems.Up to 245 Devices
Expands a CCS 1000 D system to a maximum of 245 discussion devices.
85 More Devices
Each unit powers up to 85 additional discussion devices.
Built-in Splitter
One trunk and two tap-offs, installed at any point; cascade more units.
Short-Circuit Protection
A short on one output disconnects only that output; the unit stays powered.
Automatic Power Up
Switches on and off with the control unit, nothing to operate.
Rack or Tabletop
Same housing as the control unit: 19-inch, 1 RU, feet and brackets included.
Technical Specifications
Key specs
- Up to 85 more devices
- System up to 245 devices
- 1 trunk + 2 tap-offs, 40 devices each
- Built-in splitter, cascadable
- Short-circuit protection
- Powers on with the control unit
- 24 VDC supply included
- 19-inch, 1 RU, 4.12 kg
Supply voltage Adaptor | 100 to 240 VAC, 50/60 Hz |
Current Consumption voltage Adaptor | 1.9 A (100 VAC) to 1 A 240 (VAC) |
DC voltage Control Unit | 24 V, 6.0 A |
Maximum number of Discussion Devices for Control Unit (without Extension Unit) | 40 Discussion Devices per trunk 80 Discussion Device in total 24 V, Max 5.2 A (short-circuited protected) |
Discussion Device loudspeakers volume control | 15 steps of 1.5 dB (starting from -10.5 dB) |
Limit threshold level to unit | 12 dB above nominal level |
Gain reduction due to number of open microphones (NOM) | 1/SQRT (NOM) |
Sample rate | 44.1 kHz |
Frequency response | 30 Hz to 20 kHz |
Ethernet speed | 1 Gb/s |
Nominal input (85 dB SPL) | < 0.5% |
Max. input (110 dB SPL) | < 0.5% |
XLR nominal microphone input | -56 dBV |
XLR maximum microphone input | -26 dBV |
RCA nominal input | -24 dBV (+/- 6 dB) |
RCA maximum input | +6 dBV |
S/N | > 93 dBA |
Frequency response | 30 Hz to 20 kHz |
THD | <0.1% |
RCA nominal output | -24 dBV (+6/- 24 dB) |
RCA maximum output | +6 dBV |
S/N | > 93 dBA |
Frequency response | 30 Hz to 20 kHz |
THD | <0.1% |
Recording/ Playback (bit rate) | 64, 96, 128, 256 Kbit/sec |
Recording/ Playback (sample frequency) | 44.1 kHz |
Nominal output | 72 dB SPL |
Frequency response | 200 Hz to 16 kHz (acoustical) |
Gain range | Mute -10.5 to +12 dB |
SanDisk USB memory stick | Formatted with FAT32 file system. Maximum size: 128 GB. |
Dimensions including feet (H x W x D) | 45 x 440 x 200 mm (1.8 x 17.3 x 7.9 in) 19” wide, 1 RU high |
Height of feet | 5.5 mm (0.2 in) |
Mounting | Tabletop or 19 “ rack |
Material (top and base) | Painted metal |
Color (top and base) | Traffic black (RAL 9017) matt- gloss |
Rim front panel | Pearl light grey (RAL 9022) matt- gloss |
Weight (CCSD‑CURD) | Approx. 3.4 kg (7.5 lb) |
|
Operating temperature |
5 ºC to +45 ºC (+41 ºF to +113 ºF) |
|
Storage and transport temperature |
-40 ºC to +70 ºC (-40 ºF to +158 ºF) |
|
Relative humidity |
5% to 98% non-condensing |
Know before you buy
Quick answers about the CCSD-EXU, and how it compares.
When do I need a CCSD-EXU?
A control unit powers up to 80 discussion devices. For more, add extension units: each powers up to 85 more, up to 245 devices in one system.
How is it connected?
Its 2 m cable plugs into the control unit or the previous component in the chain. It has one trunk and two tap-off outputs, up to 40 devices each and 85 in total, and a loop-through for cascading more extension units.
What is in the box?
Extension unit, mains cord, 24 VDC power supply, feet for tabletop use, 19-inch 1U mounting brackets, safety instructions and a quick installation guide.
What do I need for a CCS 1000 D system?
- A control unit: CCSD-CURD with MP3 recorder and feedback suppression, or CCSD-CU (ask us) without them. It powers and controls up to 80 discussion devices on two trunks of 40.
- Extension units for bigger rooms: each CCSD-EXU powers up to 85 more devices, for a maximum of 245.
- Tabletop devices: CCSD-DL2 (long microphone) or CCSD-DS2 (short microphone), each set as participant or chairperson.
- Flush devices: CCSD-FDL for participants and CCSD-FCML for the chairperson, both with long microphones; short-microphone CCSD-FDS (ask us) and CCSD-FCMS (ask us). Up to 35 flush devices per trunk.
- A tablet, laptop or PC for the web browser interface and advanced settings.
Devices daisy-chain with their own 2 m cables and are plug and play: no restart when you add or remove one.
Who supplies Bosch CCS 1000 D in the UAE, and what warranty do I get?
Protechtors General Trading LLC (hik.ae) is an authorized partner of Bosch, Dynacord and Electro-Voice in the UAE, so everything we supply is genuine and comes with a 3-year warranty. Warranty is carry-in: bring the unit to our office in Dubai and after inspection it is repaired or replaced as needed.
We supply Bosch CCS 1000 D across the UAE and support you after the sale. Prices are quoted per project: tell us what you need and we will send a quote.

