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Alarm Messages .............................................................................................. 120
Network Interface (NI) ........................................................................... 120
Nx56/64 Interface .................................................................................... 120
DSX-1 (PBX) Interface ............................................................................. 121
Status Messages .............................................................................................. 122
Network Interface (NI) ........................................................................... 122
Nx56/64 Interface .................................................................................... 122
DSX-1 (PBX) Interface ............................................................................. 123
Index ................................................................................................................. 125
Figures
Figure 1-1. Front View of the TSU 120 ........................................................... 1
Figure 1-2. TSU 120 Rear Panel ....................................................................... 3
Figure 1-3. TSU 120 Interfaces ......................................................................... 6
Figure 1-4. Network Timed Clock Source ................................................... 11
Figure 1-5. DSX-1 Timed Clock Source ........................................................ 12
Figure 1-6. DTE Clock Source ....................................................................... 13
Figure 1-7. Internal Clock Source ................................................................. 14
Figure 1-8. Normal (CSU) .............................................................................. 15
Figure 1-9. Network Loopback Tests ........................................................... 17
Figure 1-10. DTE Interface Loopback ............................................................. 18
Figure 1-11. Port Interface Loopback ............................................................. 19
Figure 1-12. Diagram of Loopbacks ............................................................... 20
Figure 2-1. Example of Chain In ................................................................... 36
Figure 3-1. TSU 120 Front Panel Layout ...................................................... 39
Figure 3-2. Select a Menu Item ...................................................................... 44
Figure 3-3. Sample Menu ............................................................................... 44
Figure 3-4. Display and Data Fields ............................................................. 45
Figure 3-5. Menu Tree: The Four Opening Menus .................................... 47
Figure 3-6. Display of Opening Main Menus ............................................. 48
Figure 3-7. Status Menu Tree ......................................................................... 52
Figure 3-8. Network Interface Performance Report ................................... 53
Figure 3-9. Network Interface Error Type ................................................... 55
Figure 3-10. Display of Alarm Messages ....................................................... 56
Figure 3-11. Configuration Menu Tree ........................................................... 61
Figure 3-12. Map Exchange Selection Display .............................................. 65
Figure 3-13. Selection Times for Map Exchange ........................................... 66
Figure 3-14. DS0 Map Designations ............................................................... 68
Figure 3-15. CREATE TEMP Selection Screen .............................................. 69
Figure 3-16. Selected Port and Quantity of DS0s ......................................... 70
Figure 3-17. Port Configuration ...................................................................... 72
61200.129L1-1
TSU 120 User Manual
Table of Contents
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