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Chapter 3. 9500 MXC Nodes
Vol. II-3-94
Alcatel-Lucent
• Service Restoration Times for Hot Standby and Diversity on page 3-97
Transmitter Switching
Transmit switching for hot-standby and space diversity is not hitless; service is
restored within 200 ms. Transmit switching for frequency diversity is hitless
providing
the online Tx RAC is not removed.
The
online
Tx RAC manages the Tx protection switch function, and is
transferred between RACs to always be with the online Tx RAC.
For hot-standby and space/frequency diversity the default protection
configuration has the primary RAC online Tx and the secondary RAC online Rx.
• Only the online Tx is operational for hot-standby and space diversity.
• Both online Tx and standby Tx are operational for frequency diversity. The
online Tx is managing Tx traffic synchronization.
• Switching from the online to standby transmitter will not be initiated if the
standby transmitter has failed, or the standby Tx RAC has been removed or
replaced by an incorrect plug-in. Similarly, a switch will not be initiated if the
ODU associated with the RAC has failed or is disconnected.
• When a switch has occurred, protection management remains with what was the
offline transmitter. The primary-designated RAC (default online Tx) is
not
automatically returned to online transmit on repair or replacement
Transmit Switching Operation, Hot-standby and Space/Frequency
Diversity
:
• The primary RAC is the default online Tx RAC.
• When a Tx switch from primary to secondary occurs, the online Tx status is
transferred from the primary to secondary RAC, and remains with the
secondary RAC; the primary-designated RAC is not automatically returned to
online on repair/replacement. The same process occurs in reverse - for a switch
from secondary RAC Tx online to primary RAC Tx online.
• For hot-standby and space diversity the online Tx status is changed for a
card withdrawal, RAC/ODU failure, or software load failure.
• For frequency diversity the online status is only changed for a card
withdrawal or software load failure.
• The switch of
online
Tx status is not hitless, service is restored within 200 ms.
Transmit Switching Criteria, Hot-standby and Space Diversity
:
Transmitter switching to the alternate transmitter is initiated for the following
local alarm
conditions:
• RAC plug-in is missing or incorrect
• RAC software load failure
Содержание 9500 MXC
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Страница 29: ...Volume I 9500 MXC Health and Safety Requirements...
Страница 30: ......
Страница 39: ...Volume II 9500 MXC System Description...
Страница 40: ......
Страница 56: ...Chapter 1 9500 MXC System Overview Vol II 1 16 Alcatel Lucent...
Страница 94: ...Chapter 2 9500 MXC Terminals Vol II 2 38 Alcatel Lucent...
Страница 218: ...Chapter 4 Outdoor Units Vol II 4 4 Alcatel Lucent...
Страница 236: ...Chapter 6 9500 MXC Performance and Diagnostic Features Vol II 6 14 Alcatel Lucent...
Страница 237: ...Volume III 9500 MXC Installation...
Страница 238: ......
Страница 268: ...Chapter 2 Outdoor Installations Vol III 2 26 Alcatel Lucent Figure 2 16 BGXZ Surge Suppressor...
Страница 282: ...Chapter 2 Outdoor Installations Vol III 2 40 Alcatel Lucent...
Страница 300: ...Chapter 4 Installing the IDU Vol III 4 6 Alcatel Lucent...
Страница 321: ...Volume IV 9500 MXC CT...
Страница 322: ......
Страница 326: ...Chapter 1 9500 MXC CT Introduction Vol IV 1 4 Alcatel Lucent Figure 1 3 Standardized 9500 MXC Logos...
Страница 332: ...Chapter 1 9500 MXC CT Introduction Vol IV 1 10 Alcatel Lucent...
Страница 362: ...Chapter 2 Setting Up 9500 MXC CT Vol IV 2 30 Alcatel Lucent...
Страница 368: ...Chapter 3 Installation and Configuration Process Vol IV 3 6 Alcatel Lucent Figure 3 1 9500 MXC CT Menu Bar Menus...
Страница 374: ...Chapter 3 Installation and Configuration Process Vol IV 3 12 Alcatel Lucent...
Страница 384: ...Chapter 4 Licensing Vol IV 4 10 Alcatel Lucent...
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Страница 508: ...Chapter 8 Protection Vol IV 8 26 Alcatel Lucent...
Страница 542: ...Chapter 10 Networking Configuration Vol IV 10 18 Alcatel Lucent...
Страница 546: ......
Страница 550: ...Chapter 12 Date and Time Configuration Vol IV 12 4 Alcatel Lucent...
Страница 558: ...Chapter 13 Software Management Vol IV 13 8 Alcatel Lucent...
Страница 561: ...9500 MXC User Manual 3DB 23063 ADAA Rev 004 July 2007 Vol IV 14 3 Figure 14 2 Login Screen for Admin...
Страница 562: ......
Страница 632: ...Chapter 15 Diagnostics Vol IV 15 70 Alcatel Lucent Figure 15 27 Example Parts Screen...
Страница 636: ...Chapter 15 Diagnostics Vol IV 15 74 Alcatel Lucent...
Страница 637: ...Volume V Commissioning and Troubleshooting...
Страница 638: ......
Страница 688: ...Chapter 2 9500 MXC Troubleshooting Vol V 2 32 Alcatel Lucent Terminal FAN Alarm Hierarchy FAN Hardware Fan Failure FAN...
Страница 699: ...Volume VI Appendices...
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Страница 706: ...Vol VI A 6 Alcatel Lucent Figure A 2 Excerpt from a Circuit Allocation Sheet for the Example Ring in Figure A 1...
Страница 791: ...9500 MXC User Manual 3DB 23063 ADAA Rev 004 July 2007 Vol VI B 65...
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Страница 836: ...Vol VI D 10 Alcatel Lucent Figure D 3 Static Routing Screen for Node B in Figure D 2 3 192 168 2 1 Lyons Dpt...
Страница 846: ...Vol VI D 20 Alcatel Lucent...
Страница 856: ...Vol VI E 10 Alcatel Lucent...
Страница 873: ...9500 MXC User Manual 3DB 23063 ADAA Rev 004 July 2007 Vol VI F 17...
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