Specifications

SDM-300L3 Satellite Modem Revision 0
Specifications MN/SDM300L3.IOM
15–17
15.7.2 Demodulation and FEC Decoding Types
The following combinations of demodulation and forward error correction decoding are
available.
Table 15-8. L-Band Demodulation and FEC Decoding Types
Decoder Code Rate Reed Solomon Modulation
Viterbi, K7 1/2 BPSK
Viterbi, K7 1/2 225/205 Closed BPSK
Viterbi, K7 1/2 ,3/4, 7/8 QPSK, OQPSK
PTCM 2/3 8PSK
Viterbi, K7 1/2, 3/4, 7/8 225/205 [4] IDR T1
225/205 [8] No Overhead, ASYNC Overhead
219/201 [4] VSAT IBS, IBS, IDR E1
126/112 [4] IDR Small Carrier, SDM-300 Legacy
QPSK, OQPSK
PTCM
(RS EFD Compatible)
2/3 225/205 [ ] Closed or IDR T1,
126/112 [ ] IBS and D&I,
219/201 [ ] IDR E1
8PSK
PTCM
(RS IESS-310 Compatible)
2/3 219/201 [4] No Overhead, 219/201 [4] IBS and
D&I,
219/201 [8] IDR T1/E1
8PSK
Sequential 1/2 BPSK
Sequential 1/2 225/205 [ ] Closed BPSK
Sequential 1/2. 3/4, 7/8 QPSK, OQPSK
Sequential 1/2, 3/4, 7/8 225/205 [ ] Closed QPSK, OQPSK
Uncoded 1/1 BPSK, QPSK
Turbo Product 21/44, 5/16 BPSK
Turbo Product 1/2, 3/4 QPSK, OQPSK
Turbo Product 3/4 8PSK
Note: Interleaver depths are selectable at: 4, 8, or 16. The values shown are default or Open Network
specified.