Specifications

SDM-300L3 Satellite Modem Revision 0
Preface MN/SDM300L3.IOM
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Figure 6-5. D&I G.703 Master/Master Clocking Diagram.................................................................. 6–8
Figure 6-6. Clock Slip........................................................................................................................ 6–10
Figure 6-7. Doppler Shift................................................................................................................... 6–11
Figure 7-1. Viterbi Decoder................................................................................................................. 7–7
Figure 7-2. Viterbi Decoder and Reed-Solomon ................................................................................. 7–8
Figure 7-3. BPSK and (O)QPSK BER Performance ........................................................................... 7–9
Figure 7-4. Turbo Product Codec ...................................................................................................... 7–10
Figure 7-5. Sequential Decoder, Reed-Solomon, and 1544 kbps ...................................................... 7–11
Figure 7-6. Sequential Decoder and 56 kbps..................................................................................... 7–12
Figure 7-7. Sequential Decoder and 1544 kbps ................................................................................. 7–13
Figure 8-1. Fault Isolation Test Setup.................................................................................................. 8–2
Figure 8-2. Typical Output Spectrum .................................................................................................. 8–5
Figure 8-3. Typical Eye Constellations................................................................................................ 8–6
Figure 9-1. SDM-300L Fault Tree....................................................................................................... 9–3
Figure 10-1. IBS Interface Block Diagram........................................................................................ 10–3
Figure 10-2. IDR Interface Block Diagram ....................................................................................... 10–7
Figure 10-3. D&I with Asynchronous Overhead Data Flow........................................................... 10–10
Figure 10-4. E1 Framing Formats.................................................................................................... 10–15
Figure 10-5. T1 Framing Formats.................................................................................................... 10–16
Figure 11-1. ASYNC/AUPC Block Diagram.................................................................................... 11–3
Figure 11-2. Remote ASYNC Connection Diagram for Y-Cable ................................................... 11–13
Figure 11-3. Remote ASYNC Connection Diagram for Breakout Panel ........................................ 11–13
Figure 12-1. Transmit Section of the Asymmetrical Loop Timing Block Diagram.......................... 12–2
Figure 12-2. Receive Section of the Asymmetrical Loop Timing Block Diagram............................ 12–3
Figure 15-1. Block Diagram .............................................................................................................. 15–2
Figure 15-2. Carrier Level vs Symbol Rate ..................................................................................... 15–21
Tables
Table 1-1. FAST Options and Required Configurations ..................................................................... 1–5
Table 2-1. Connector (J8) Matrix ...................................................................................................... 2–11
Table 3-1. Modem Rear Panel Connectors.......................................................................................... 3–2
Table 3-2. Remote Connector and Pinouts (J6) ................................................................................... 3–3
Table 3-3. Fault Connector and Pinouts (J7) ....................................................................................... 3–4
Table 3-4. 25-Pin D Connector Pinouts............................................................................................... 3–6
Table 3-5. 34-Pin Winchester Connector Pinouts (V.35) .................................................................... 3–7
Table 3-6. 37-Pin Connector Pinouts (Optional) .................................................................................3–8
Table 3-7. 50-Pin Connector Pinouts................................................................................................... 3–9
Table 3-8. AUX 1 Connector and Pinouts (J9).................................................................................. 3–12
Table 3-9. Alarms Connector and Pinouts (J10)................................................................................ 3–13
Table 4-1. LED Indicators ................................................................................................................... 4–2
Table 4-2. SDM-300L Custom Modem Defaults ............................................................................ 4–118
Table 4-2. SDM-300L Custom Modem Defaults (Continued)........................................................ 4–119
Table 5-1. Modem Type Selection....................................................................................................... 5–1
Table 5-2 IDR Parameter Settings ...................................................................................................... 5–2
Table 5-3. IBS Parameter Settings....................................................................................................... 5–3
Table 5-4. D&I Parameter Settings...................................................................................................... 5–4
Table 5-5. N x 64 Chart ....................................................................................................................... 5–4