Functional Overview
MS-4900, Rev. A
5–
11
demultiplexing capability.
As shown in Figure 5-3, the processor connects to the tuner, controlling its
frequency setting and the bit rate used by the demodulator. The processor programs
the TDD at start-up to match the frame image stored in memory. The TDD routes
the aggregate data according to this image. Some of the bits in the frame can be
routed to the processor and may be processed there by the statistical demultiplexer.
The UART chip in the processor drives the Serial 1 output to an external device.
(The Serial 1 port is the only output port in an IDR V1000 basic unit.)
Statistical
Demultiplexer
(Stat Demux)
Packetized data, sent in stat mux format from the NCC, is de-multiplexed (and de-
packetized) in the receiver. The packets include session, data, and control
information used by the to decrypt, decompress, and direct the result to specific
serial port destinations.
Since statistically multiplexed data provides so much information about how the
message is to be handled, the IDR V1000 screen displays show useful status
information about the reception and delivery of the packets. (Refer to Section 4 on
interpreting these screens.)
Содержание IDR V1000
Страница 21: ...Using the Front Panel 3 8 MS 4900 Rev A...
Страница 36: ...Functional Overview MS 4900 Rev A 5 3 Figure 5 1 A Sample Wavephore Network and the Flow of Data...
Страница 46: ...Functional Overview MS 4900 Rev A 5 13 Figure 5 5 Four Port Daughtercard Model...
Страница 48: ...Functional Overview MS 4900 Rev A 5 15...
Страница 54: ...Appendix B Pin out Tables B 4 MS 4900 Rev A...
Страница 61: ...Glossary G 6 MS 4900 Rev A...
