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9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007
Vol. II-3-105
Settings, Protection and ATPC
• Each RAC 40 in a co-channel XPIC pairing must be configured for the
same
frequency, capacity and modulation.
• A special Tx mute function applies if one of the receive RACs fails, the RAC is
withdrawn, or the XPIC cables are removed or incorrectly connected. Refer to
Remote Tx Mute.
• Co-channel links may also be
hot-standby or diversity protected
using two
RAC 40s per vertical and horizontal feed. The protection partners must be
installed in the same INUe and slot-located according to INU/INUe RAC
protection rules.
• Where co-channel links are to be 1+1 protected, both must be 1+1
protected
13
.
• The RAC 40 assigned to each polarization is 1+1 protected by adding a RAC
40 protection partner in the CT Protection screen.
• For hot-standby or frequency diversity protection using a single dual
polarized antenna at each end, remote-mounted
equal-loss
couplers
14
must
be used to mount the ODUs.
• Similarly, for space diversity operation all four antennas must be of the same
size (have the same gain).
• The protected V and H links operate as two independent links - the standard
protection switch criteria for protected links apply. Refer to Hot-standby and
Diversity Switching Criteria on page 3-93.
• Similarly, the Remote Tx mute functions apply where both RACs of a
protected pair fail, are withdrawn, or have their XPIC cables removed or
incorrectly connected. Refer to Remote Tx Mute.
• RAC 40s can be operated in single channel/non-XPIC mode to provide an
upgrade path to co-channel operation without hardware changes.
• ATPC must be OFF on both co-channel links. (Receive signal level
measurements are affected by the interference caused on one link by the other,
which results in abnormal ATPC action).
13
If just one of the co-channel links is 1+1 protected, a failure of XPIC cross-connect between the 1+0
RAC 40 and its 1+1 XPIC partner may cause both V and H receive streams to error as the discrimination
provided under XPIC would be lost. An unlikely double-failure event would be needed to cause the same
error if both co-channel links are 1+1 protected.
14
Optimum XPIC interference cancellation performance requires equal, or near equal V and H receive
signal levels.
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...
Страница 388: ......
Страница 390: ......
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...
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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...
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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