Radyne DMD50, Installation And Operation Manual

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DMD50 Universal Satellite Modem User Interfaces
TM118 – Rev. 1.1 4-5
4.3.2 Modulator Menu Options and Parameters
NETWORK SPEC {IDR, IBS, DROP & INSERT, CLOSED NET, DVB SAT}
The Network Spec Command sets a number of
parameters within the modem to meet a specification.
The purpose is to eliminate keystrokes and potential
compatibility problems.
Data rates not covered by a given network specification
will not be allowed. If the mode of operation is selected
after the data rate has been entered, then the data rate
must be compatible with the desired mode of operation
or the network spec will not be allowed. The following
parameters cannot be changed while the unit is in the
given mode of operation:
IDR:
(IESS-308)
For Data rates 1.544, 2.048, 6.312, 8.448 Mbps
Framing Type: 96 Kbps (IDR)
Scrambler Type: V.35
Spectrum Mask: Intelsat
For Data Rates < 1.544
Framing Type: 1/15 (IBS)
Scrambler Type: IESS-309
Spectrum Mask: Intelsat
IBS:
(IESS-309)
For Data Rates < 2048
Framing Type: 1/15 (IBS)
Scrambler Type: IESS-309
Spectrum Mask: Intelsat
Drop & Insert:
Data Rates: n x 64 n = 1, 2, 3, 4, 5, 6, 8,
10,12, 15, 16, 20, 24, 30
Framing Type: 1/15 (IBS)
Scrambler Type: IESS-309
Spectrum Mask: Intelsat
Efficient D&I Closed Network,
Data Rates: n x 64, N = 1-31 Any combination
Descrambler Type: IESS-309
Spectrum Mask: Intelsat