Comtech EF Data SDM-300A - Manual (Page 17)

SDM-300A Satellite Modem Revision 6
Preface MN/SDM300A.IOM
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Figure 10-1. IBS Interface Block Diagram ..........................................................................................................10–3
Figure 10-2. IDR Interface Block Diagram..........................................................................................................10–9
Figure 10-3. D&I with Asynchronous Overhead Block Diagram .......................................................................10–16
Figure 10-4. D&I with Asynchronous Overhead Data Flow ..............................................................................10–17
Figure 10-5. E1 Framing Formats.....................................................................................................................10–21
Figure 10-6. T1 Framing Formats.....................................................................................................................10–22
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 ...............................................12–3
Figure 12-2. Receive Section of the Asymmetrical Loop Timing Block Diagram ................................................12–4
Figure 14-1. 8-Channel Multiplexer PCB (AS/5985) ...........................................................................................14–2
Figure 14-2. 8-Channel Multiplexer Installation ..................................................................................................14–3
Figure 15-1. Flex MUX (AS/6450) ......................................................................................................................15–2
Figure 15-2. Flex Mux Multiplexer Installation ....................................................................................................15–7
Figure 18-1. Fault Isolation Test Setup...............................................................................................................18–2
Figure 18-2. Typical Output Spectrum (with Noise) ............................................................................................18–5
Figure 18-3. Typical Output Spectrum (without Noise) .......................................................................................18–5
Figure 18-4. Typical Eye Constellations .............................................................................................................18–7
Figure 19-1. Dimensional Envelope Pre-1999..................................................................................................19–35
Figure 19-2. Dimensional Envelope Post-1999 ................................................................................................19–36