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C-SB Stagebox (option)
The C-SB is a Mic/Line input/output stagebox which can be located remotely from the Centuri chassis. It
o
perates at 48KHz sample frequency and is a 14U high, 462mm deep, rack-mounted unit.
At the front of the unit 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
v
oltages from 90–250v without adjustment. The PSU units provide two un-switched mains outlets via IEC 6A
shuttered sockets. A 2nd power supply unit may be fitted to provide redundancy.
Each micamp input card provides 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 but also 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 linked to the Centuri core using duplex LC fibre-optic cable
(1)
for the audio data and a
separate ethernet cable
(2)
for the control functions (gain, pad, filter etc.). The audio fibre links to a stagebox can
be duplicated thus creating audio redundancy for critical or on-air reliability. (Fibre Links 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.
Note: 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.
(1) The fibre optic cable is available in two types: for distances of up to 550m (multimode fibre) and distances of up to 2Km
(singlemode fibre).
(2) The standard maximum limit for ethernet cable is 100m. For distances of over 100m ethernet repeaters may be needed.
Alternatively, 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.
MORSE System (option)
The MORSE (MOdular Resource Sharing Engine) system provides a cost-effective, scalable solution for the
sharing of local or remote audio I/O and managing control data. The system is designed for on-air reliability and
features optional redundancy on all data links and fault tolerant proprietary software.
The system comprises a central router to which remote stageboxes and consoles are connected via optical MADI
links. Up to 24 individual links are available.
The router is a 3U 19” rack unit. Stageboxes are connected to the router and I/O can then be allocated to any
C100 console connected to the router.
Stageboxes can be 3U or 6U 19” rack units and each can be fitted with up to 56 channels of I/O. Plug-in modules
are available for mic, line, AES, MADI and SDI (due 2007). A 2nd redundant power supply can be fitted to the
6U version. Stageboxes are connected to the router using one or two duplex optical MADI links.
The MORSE system is more fully described in a separate document. Part number 82S69MOR10A.
System Components
Section 4
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