Motorola PTP 500 User's Guide Page 116

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Configuration options for TDD synchronization Chapter 2 Planning considerations
phn-1115_006v000
2-28
Sep 2010
Cluster with PTP-SYNC and no GPS receiver
Each link requires one PTP-SYNC unit. PTP-SYNC units are connected together in a
daisy-chain. Between two and ten PTP-SYNCs may be chained in this way. One ODU is
designated as a cluster timing master. Use this configuration where all master ODUs
are collocated at a single site. As this configuration does not require a GPS receiver, it
provides additional flexibility, particularly in applications requiring rapid deployment
(Figure 2-11).
Th
e wireless
configuration settings are:
Master Slave Mode = ‘Master’ (all ODUs in cluster).
TDD Sync Device = ‘PTPSYNC’ (all ODUs in cluster).
Cluster Master Slave = ‘Cluster Master’ (first ODU) and ‘Cluster Slave’ (others).
PTP Sync Site Reference = ‘Internal’ (all ODUs in cluster).
Figure 2-11 TDD synchronization configuration – cluster with PTP-SYNC and no GPS
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