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CDM-710G High-Speed Satellite Modem
Front Panel Operation
G.703 fixed Data Rates E3 (34.368), T3 (44.736) and STS-1 (51.840) are set using
the Int1 (CDI-10-1 Single G.703) menu. The Tx Symbol Rate is automatically
entered from the selected Data Rate from modulation type, code rate, pilot and
FEC frame setting. The Rx Symbol Rate is entered manually.
IMPORTANT
HSSI maximum Data Rate (70 Mbps) may limit symbol maximum.
Table 6-1. Symbol Rate / Data Rate Range – Standard FECFrame* and 188 Byte Format
(QPSK 1/4, 1/3 and 2/3 data is for informational purposes only)
Modulation
FEC Code
QPSK
LDPC+BCH
8PSK
LDPC+BCH
16APSK
LDPC+BCH
32APSK
LDPC+BCH
* Notes:
1. DVB-S2 - Standard FECFrame = 64,800 Bits.
2. For G.703 fixed Data Rates, limit maximum Symbol Rate to less than the maximum indicated in Table 6-1.
For more information on this interface, see Chapter 12. SINGLE G.703 (E3/T3/STS-1) INTERFACE
(CDI-10-1).
3. HSSI Data Rate limit of 70 Mbps may be reached before Symbol Rate limit is reached. For more
information on this interface, see Chapter 13. HSSI INTERFACE (CDI-60).
Symbol Rate
Spectral
Inner
(Msps)
Efficiency
Code
Rate
Pilot OFF
Min
Max
1/4
0.490243
1/3
0.656448
2/5
0.789412
1/2
0.988858
3/5
1.188304
2/3
1
45*
1.322253
3/4
1.487473
4/5
1.587196
5/6
1.654663
8/9
1.766451
9/10
1.788612
3/5
1.779991
2/3
1.980636
3/4
2.228124
1
45*
5/6
2.478562
8/9
2.646012
9/10
2.679207
2/3
2.637201
3/4
2.966728
4/5
3.165623
1
35*
5/6
3.300184
8/9
3.523143
9/10
3.567342
3/4
3.703295
4/5
3.951571
5/6
1
28*
4.119540
8/9
4.397854
9/10
4.453027
Data Rate (Mbps)
Pilot OFF
Min
Max
0.490243
22.060942
0.656448
29.540166
0.789412
35.523546
1.000000
44.498615
1.188304
53.473684
1.322253
59.501385
1.487473
66.936288
1.587196
71.423823
1.654663
74.459834
1.766451
79.490305
1.788612
80.487535
1.779991
80.099585
1.980636
89.128631
2.228124
100.265560
2.478562
111.535270
2.646012
119.070539
2.679207
120.564315
2.637201
92.302026
2.966728
103.835482
3.165623
110.796808
3.300184
115.506446
3.523143
123.310006
3.567342
124.856967
3.703295
103.692261
3.951571
110.643985
4.119540
115.347126
4.397854
123.139923
4.453027
124.684751
6–14
Revision 1
MN-CDM710G
Data Rate (Mbps)
Spectral
Pilot ON
Efficiency
Pilot ON
Min
0.478577
0.478577
21.535965
0.640827
0.640827
28.837209
0.770627
0.770627
34.678204
0.965327
1.000000
43.439697
1.160026
1.160026
52.201190
1.290788
1.290788
58.085452
1.452076
1.452076
65.343429
1.549426
1.549426
69.724175
1.615288
1.615288
72.687939
1.724416
1.724416
77.598702
1.746049
1.746049
78.572201
1.739569
1.739569
78.280616
1.935658
1.935658
87.104623
2.177525
2.177525
97.988646
2.422276
2.422276
109.002433
2.585924
2.585924
116.366586
2.618365
2.618365
117.826440
2.574613
2.574613
90.111471
2.896320
2.896320
101.371209
3.090495
3.090495
108.167326
3.221863
3.221863
112.765192
3.439530
3.439530
120.383555
3.482680
3.482680
121.893803
3.623332
3.623332
101.453291
3.866247
3.866247
108.254911
4.030589
4.030589
112.856500
4.302894
4.302894
120.481032
4.356875
4.356875
121.992503
Max
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