9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007
Vol. V-1-7
Test Measurement
The procedures described are designed to confirm correct switch operation; they
are not intended to provide verification of switching times to millisecond
accuracy.
• The procedures provide confirmation of switch action using errored-second
time resolution.
• Confirmation of switching times with millisecond accuracy is a FAT (factory
acceptance test) procedure. Contact Alcatel-Lucent or your supplier for details.
The check procedures described refer to G.821 BER and G.826 link performance
error measurement:
• The BER test can be established using the built-in BER test capability (on
DACs), or an external hand-held tester.
• The built-in BER test and most hand-held BER testers only provide direct
measurement of errored period with a resolution to one second, as an
errored-second count, which depending on where the second starts and stops
in relation to the interruption may result in a count of 1 or a count of 2 for a
service interruption of less than one second. However, an
estimate
of the hit
period can be calculated from the Bit Error count (increment of the number
of errored bits), using the circuit data rate. For example, a bit count of 50,000
indicates an outage of 24 ms on an E1 trib (E1 = 2,048,000 bits per second).
• The G.826 link performance test data is provided in the Performance screen.
• G.826 data provides measurement of errored period with a resolution to one
second, as an errored-second count, which depending on where the second
starts and stops in relation to the interruption may result in a count of 1 or a
count of 2 for an interruption of less than one second.
• The procedures involve disconnection of the ODU cable or withdrawal of a
plug-in card, which depending on the way it is done can have a significant
bearing on the observed service restoration time; a soft/slow/imprecise
disconnection will result in variable switch action and switch times. It is for this
reason that the procedures described herein are not appropriate for verifying
9500 MXC protection switch times.
The tests for protection switching provided in this section refer to use of the
built-in G.826 link performance data, or to G.821 BER test capabilities. The
built-in BER test function is used for all BER tests except for DAC testing, when
an external tester is used.
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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...
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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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