List of Figures

Figure 1-1:

ISU 512 Rear Panel

2

Figure 1-2:

ISU 512 (U interface) Applications

4

Figure 3-1:

Maintenance Port VT 100 Menu

12

Figure 3-2:

VT 100 Configuration Menu

15

Figure 3-3:

VT 100 Configuration Menu 2

15

Figure 3-4:

VT 100 Status Screen

16

Figure 3-5:

VT 100 Test Menu

16

Figure 3-6:

VT 100 Dial Menu

17

Figure 4-1:

Network Connection Status

19

Figure 4-2:

LCD Display of the Main Menu

20

Figure 4-3:

ISU 512 Front View

22

Figure 5-1:

Configuration Menu

26

Figure 5-2:

Dial Options Menu

31

Figure 5-3:

Leased Line Menu

39

Figure 5-4:

Limited Distance Modem Application

40

Figure 5-5:

Leased Application with Channel Banks

40

Figure 6-1:

ISU 512 Loopback Points

57

Figure D-1:

EIA-232 to DB-25 Adapter Connector

89

Figure D-2:

RJ-45 ISDN Line Interface

89

Figure D-3:

EIA-232, RS-366, and RS-530 Connector

90

Figure D-4:

V.35 Connector

90

Figure D-5:

RS-366 Y Cable

95

Figure D-6:

RS-530 to V.35 Adapter Cable

95

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ISU 512 User Manual

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ADTRAN ISU 512 user manual List of Figures