Solid State Logic C300 HD, Руководство по установке, Страница: 21 / 76

Centuri – DSP Card
The DSP cards supply the signal processing function for the Centuri system. Each card provides 32 channels of processing
at 48kHz. or 16 channels of processing at 96kHz. DSP cards are all the same and do not require configuration. They can
therefore be fitted into any of the appropriate slots in the front of the Centuri rack.
Centuri – CPU Card
The Centuri Processor is always equipped with a CPU card. It can only be fitted to the left-most rear slot.
The CPU card is fitted with connectors for access to the following functions:
‘Ethernet’ 100baseT console network
(1)
‘Video 1’ Display output for the Centre Section monitor (Video 2 and 3 are unused).
‘Sync ‘ Video sync input.
‘Serial’ 62-pin connector providing eight RS422/RS232 serial ports. An adaptor cable breaking out to eight
off 9-way D-type male connectors, labelled ‘TTY-A’ to ‘TTY-G’, is provided.
TTY-A, B, C, D and H: - machine control 1–5 (RS422)
TTY-E: - Console (RS232) – Connection for data terminal
TTY-F and G - Unused on C300
(1)
The Ethernet connection is used for SSL control information, it is not TCP/IP protocol. Do not combine with proprietary
networks. Standard Ethernet repeaters can be used.
Centuri – Console Interface Card
The Centuri Processor is always fitted with one Interface card. It must be fitted to the rear of the card-cage next to the
CPU card.
The card provides the connection to the console’s control surface and handles all switch and lamp signals. Of the three
‘Control Surface’ connectors, only numbers 1 and 2 are used as these contain sufficient capacity for the largest C300HD
console.
This card also provides the connectors for parallel machine control and analogue timecode.
Centuri – Routing/Link Card
The Centuri is always fitted with a Routing/Link card. It must be fitted to the rear card-cage in position 5.
This card has two functions. The first is an internal function to manage the audio routing across the system’s backplane.
The second is to provide an interface for up to four optional MADI fibre ports. These ports provide access to remote SSL
Stageboxes or can be used as synchronous MADI I/O ports. Each port is equipped with a main and a redundant duplex
fibre connection. Links default to 64/32 Channel mode with 96K framing at 2Fs. Internal links on each card can be set to
force 56/28 channels or Legacy (48K) framing at 2Fs. In addition, each fibre interface provides an output of system Word
Clock on a separate BNC connector.
The audio Madi ports are available in either multimode or singlemode versions. A multimode version can be used for cable
lengths of up to 550m and the singlemode version for up to 2km. Fibre cables are not provided.
The fibre interface cards are cost options and should be specified at the time of order.
Centuri – Micamp Card
The Microphone input card (generally known as the BMA or ‘Broadcast Mic Amp’) provides 12 input channels. The input
is via a female Varicon (EDAC) connector. Mating connectors can be supplied as a cost option.
Each of the mic inputs has a buffered split output. The buffering takes place after the input pad, the RFI filter and the 25KHz
low-pass filter but before the variable gain stage. The split output has a gain of 26dB above the mic input level (or 6dB with
the pad in circuit) but is unaffected by the consoles’ mic gain setting. The split outputs are available on two female 25-way
D-type connectors.
Micamp cards are normally fitted to the front of the Centuri. If more than 48 channels are required then rear mounting
cards can be specified as a special order. Refer to section C for connector pinouts.
System Components
Section 4
Page 17