List of Figures

Figure 1-1 Point-to-point Application

1-1

Figure 1-2 G.703 Modem Link Application

1-2

Figure 1-3 Tail-end for Digital Network Application

1-2

Figure 1-4 ASM-20, General View

1-3

Figure 1-5 ASM-20 Rear Panel with V.35 Interface

1-4

Figure 1-6

ASM-20 Block Diagram

1-4

Figure 2-1 ASM-20 - V.35 Rear Panel

2-2

Figure 2-2 ASM-20 - X.21 Rear Panel

2-3

Figure 2-3 PCB Layout Diagram

2-4

Figure 3-1 ASM-20/SA Front Panel

3-1

Figure 3-2 ASM-20R Front Panel

3-2

Figure 4-1 BERT Using Loops

4-3

Figure 4-2 Two BERTs Operating End-to-End

4-3

Figure 4-3

Local ASM-20 in Analog Loopback

4-4

Figure 4-4

Remote ASM-20 in Digital Loopback

4-6

Figure 4-5

Local ASM-20 in Digital Loopback

4-6

Figure 5-1 ASM-20/R Front Panel

5-2

Figure 5-2 ASM-MN-214 Card Cage Front Panel

5-3

Figure 5-3 ASM-MN-214 Rear Panel

5-4

ASM-20Installation and Operation Manual

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RAD Data comm ASM-20 operation manual List of Figures