List of Tables
150-231-185-05, Revision 05
viii
September 13, 1999
HLU-231 List 8E
L
IST
OF
T
ABLES
1. Front-panel Description ................................................................................................................................... 5
2. Front-panel Display Messages......................................................................................................................... 6
3. Navigational Keys on the Maintenance Terminal ......................................................................................... 13
4. Maintenance Terminal Screens...................................................................................................................... 14
5. Span Status Fields and Descriptions .............................................................................................................. 17
6. HDSL System Alarms ................................................................................................................................... 18
7. Loopback Messages ....................................................................................................................................... 18
8. HLU-231 List 8E System Settings................................................................................................................. 21
9. Loopback Field Messages and Descriptions.................................................................................................. 26
10. Errored and Unavailable Seconds Definitions ............................................................................................... 29
11. Alarm History Fields and Descriptions ......................................................................................................... 33
12. HDSL System Alarms ................................................................................................................................... 40
13. Summary of HiGain Loopback Codes ........................................................................................................... 43
14. Addressable Repeater Loopback Commands (A1LB, A2LB, A5LB)........................................................... 48
15. Addressable Repeater Loopback Commands (A3LB and A4LB)................................................................. 51
16. HDSL Loss Over Cables................................................................................................................................ 53
17. Power Parameters: No Doubler ..................................................................................................................... 54
18. HLU-231 Power Parameters—Single Doubler (HDU-451 List 1 or 2) ....................................................... 54
19. HLU-231 Power Parameters—Single Doubler (HDU-439 or HDU-437 Lists 1 and 1B) ............................ 54
20. HLU-231 Power Parameters—Single Doubler (HDU-409 List 2)................................................................ 55
21. HLU-231 Power Parameters—Two Doublers (HDU-451 List 3, 4, 3B or 4B) ............................................ 55
22. HLU-231 Power Parameters—Two Doublers (HDU-439 or HDU-437 Lists 1 and 1B).............................. 55
23. HLU-231 Power Parameters—Two Doublers (HDU-409 List 2) ................................................................. 55
24. HLU-231 Power Parameters—Three and Four Doublers (HDU-409 List 2)................................................ 56
25. HiGain Doubler Deployment Matrix ............................................................................................................. 62
