C-Sb Stagebox (Option) - Solid State Logic C300 HD Installation Manual

Section 4

C-SB Stagebox (option)

The C-SB is a Mic/Line input/output stagebox which can be located remotely from the Centuri chassis. The C-SB can
operate at all C300HD sample rates but is currently restricted to 32 channels when operating at 2Fs. Each CS-B is a 14U
high, 462mm deep, rack-mounted unit.
At the front of the rack are nine slots for plug-in cards: six slots for mic/line input cards; two slots for line output cards
and one for the CPU card. At the rear is an auto-ranging switch-mode power supply. This will accept input voltages from
100–240v without adjustment. The PSU units provide two unswitched mains outlets via IEC 6A shuttered sockets. A 2nd
power supply unit may be fitted to provide redundancy
Each micamp input card is equipped with 8 channels, therefore a C-SB rack may be fitted with from 8 to 48 mic inputs. The
line output card also provides 8 channels and in addition features 4 channels of GPI relay closure. The CPU card is fitted
with a headphone socket to allow local monitoring of sources and also provides four analogue outputs via a 25-way D-
type connector. These outputs are assigned from the console and may be used for additional analogue feeds such as
talkback or SLS.
Each mic input is provided with a split output. This output functions in the same way as the BMA circuit. (ie. post pad, limiter
and 26dB buffer but pre the variable gain stage). The split outputs are available on 25-way D-type male connectors.
Remote stageboxes are connected to the Centuri core by using duplex fibre-optic cable
to as a GLink in the software) and a separate Ethernet cable
fibre links to a stagebox can be duplicated thus creating audio redundancy for critical or on-air reliability. The number of
Madi links required for the Centuri rack should be specified at the time of order.
The standard unit is fanless and so can be located within the live production area – subject to the following note. A low-
noise fan ventilation kit is available as an option.
The stagebox racks are cooled by convection at the front of the rack.The air flow from bottom to top of the front panel
must not be obstructed in any way (cable guides are provided at each side to route cables away from the air intake).The
air temperature at the intake and at the rear PSU heatsinks MUST NOT exceed 30° Centigrade.
Special considerations need to be observed when fitting stageboxes into flight cases – refer to Appendix F.
The fibre optic cable is available in two types: for distances of up to 550m (multimode fibre) and distances of up to 2Km (singlemode
(1)
fibre).
The standard maximum limit for Ethernet cable is 100m. For distances of over 100m Ethernet repeaters may be needed.Alternatively,
(2)
the Ethernet cable can be converted to fibre. This can then run the same distances as the audio fibre. Please discuss specific
requirements with SSL's Project Engineering Department.
for the control functions (gain, pad, filter etc.). The audio
(2)
System Components
for the Madi audio data (referred
(1)
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