SDI-104 Operator's Manual
Version 2008

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Bit Sync Requirements

As shipped, the SSEC Ingestor Board (SIB) in the SDI is configured to decode the requested data type from your bit sync. The SIB can decode NRZ-L, NRZ-S and NRZ-M encoded bit sync signal types. The SIB requires the data to change on the rising edge of the clock as the data is sampled on the falling edge of the clock. If you need to change the bit sync data type, refer to the instructions in Chapter 2's Initial Checkout, Setup and Power Up to make the jumper change on the SIB.

The SDI also comes configured to the requested clock and data signal interface type. The SDI accepts single ended TTL on either 75 or 50 ohm coax cable or RS422 level signals on a D15P connector. If you need to change the clock and data signal interface type, please contact SSEC.

The MTSAT HRIT bit rate is 3.5 Mb/second.


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