Premier Mounts CDM-600 Config RX Descrambler, RX Descrambler = on ON,OFF Frame Descrambler

CDM-600 Satellite Modem	Revision 7
Front Panel Operation	MN/CDM600.IOM

NOTE: The minimum and maximum data rates are dependent on Demodulation type and FEC decoder Rate. If the user changes the Modulation or FEC, and the data rate becomes invalid, the Data Rate will be adjusted automatically. The upper range of data rate will be dictated by the FAST option installed.

When Insert Framing or the G.703 interface type is used the [↑] [↓]arrow keys will scroll through the available data rates. If in Drop Mode and the data rate is edited to 1920 kbps, a comment is shown to indicate that E1 fixed channel mode will be implemented. The bottom line permits the user to select the data inversion feature (added for compatibility with certain older equipment). Select either ON or OFF, using the [↑] [↓] arrow keys, then press ENTER.

When G.703 is used and the Modem is Hardware Revision 2.0 or higher, three auxiliary rates will also be available (512, 1024, and 2048 kbps) indicated by the word AUX appearing to the right of the decimal place. (For example, 00512.AUX kbps).

Refer to Section 4.3 IDI/DDO connectors for additional information about how to connect the cables for the new AUX data rates.

The bottom line permits the user to select the data inversion feature (added for compatibility with certail older equipment). Select either ON or OFF, using the [↑ ] [↓] arrow keys, then press ENTER.

CONFIG: RX: DESCRAMBLER

RX DESCRAMBLER = ON (ON,OFF)

FRAME DESCRAMBLER

Select either ON or OFF, using the [↑] [↓] arrow keys, then press ENTER.

The choice of descrambler is selected automatically, and will be depend on the exact operating mode. For example, if no framing is being used, the ITU V.35 descrambler (Intelsat variant) will be used. If IBS framing is selected, the IESS-309 descrambler will be used.

If Turbo decoding is used a second scrambler selection is available: IESS-315 V.35 instead of the TPC scrambler.

RX DESCRAMBLER = IESS (NORMAL,IESS,OFF)

IESS-315 V.35 DESCRAMBLER

If LDPC decoding is selected the standard ITU V.35 descrambler will be used.

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