9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007
Vol. V-1-15
DAC Protection
DAC/tributary protection (DAC redundancy) is provided by operating two
identical DACs as a protected pair.
The protectable DACs are:
• DAC 3xE3/DS3M
• DAC 1x155o
• DAC 2x155o
• DAC 2x155e
• DAC 155oM
Protection Logic
• The DACs are configured as primary and secondary. The primary is the default
online DAC for Tx
and
Rx.
• Tx and Rx tribs are independently switched meaning it is possible for one of the
DACs to be online Tx, and the other online Rx.
• When a switch occurs, all Tx and/or Rx tributaries are switched to the
protection partner.
• Switching is not hitless.
• Two protection options are provided, tributary protection, or always-on:
• Tributary Protection (TT):
“Y” cables connect the paired DACs to customer equipment.
In the Rx direction (from the customer) both DACs receive data, but
only the online Rx DAC sends this data to the TDM bus.
In the Tx direction, the online Tx DAC sends data to customer
equipment, the other mutes its Tx line interface.
• Tributary Always On (TA):
Separate cables connect each DAC to customer equipment.
In the Rx direction (from the customer) both DACs receive data, but
only the online Rx DAC sends this data to the TDM bus.
In the transmit direction both DACs send data to customer equipment,
and the customer equipment switches between these two “always on”
tributaries.
TA protection must be used where two 9500 MXC INU/INUes are to be
interfaced using protected DACs.
Содержание 9500 MXC
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Страница 29: ...Volume I 9500 MXC Health and Safety Requirements...
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Страница 39: ...Volume II 9500 MXC System Description...
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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...
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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...
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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...
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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...
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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...
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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...
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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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