4RF Aprisa XE Технический документ - Страница 2
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Table of contents
1.
Radio Clocking ..................................................................................................................................................... 3
1.1. Introduction .................................................................................................................................................... 3
2.
Clocking Setup ..................................................................................................................................................... 4
2.1. Internal........................................................................................................................................................... 4
2.2. Link ................................................................................................................................................................ 5
2.3. Network ......................................................................................................................................................... 6
2.3.1.
QJET clocking setup ............................................................................................................................... 8
2.3.2.
HSS clocking setup ................................................................................................................................. 8
3.
External Clock Failure ......................................................................................................................................... 9
4.
Network Clocking Examples ............................................................................................................................. 10
4.1. Single Link ................................................................................................................................................... 10
4.2. Back to back links - Unframed E1 ............................................................................................................... 10
4.3. Back to back links - Framed E1 .................................................................................................................. 11
4.4. 4 wire drop and insert .................................................................................................................................. 11
4.5. Branched Network - Mixed .......................................................................................................................... 12
4.6. Central Master Clock ................................................................................................................................... 13
4.7. External E1 master clock ............................................................................................................................. 14
4.8. External HSS master clock .......................................................................................................................... 15
Aprisa XE Clocking Technical Paper
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Issued by: 4RF Customer Services 13 February 2009