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Download Motorola PTP 600 series User guide
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User Guide: PTP 600 Series Task 7: Configure wireless interface Table 6-11 Step 3: TDD Synchronization attributes Attribute Meaning TDD Sync Device Select the timing device that is to be used for TDD synchronization. Cluster Master Slave Only displayed when TDD Sync Device is set to ‘PTPSYNC’. ‘Cluster Master’ is the first ODU in the synchronization chain. ‘Cluster Slave’ is the second or subsequent ODU in the chain. PTP-SYNC Site Reference Only displayed when TDD Sync Device is set to ‘PTPSYNC’. ‘Internal’ means standalone operation with no external timing reference. ‘GPS/1PPS External’ means that an external GPS receiver will provide a 1 pps timing reference. Max Burst Duration The maximum duration of the burst opportunity. Select a value in the range 726 to 2176 microseconds. TDD Frame Duration Select a value in the range 1730 to 6410 microseconds. TDD Frame Offset The delay of the start of the TDD frame from the epoch of the external timing reference. This permits the design of synchronized networks in which the phase of the TDD frame is independent of the master/slave function. Enter a value in the range from zero to one microsecond less than the TDD Frame Duration. Slave Receive To Transmit Gap The duration of the gap between receive and transmit at the slave ODU. TDD Holdover Mode (Master only). ‘Strict’ means that the unit will not transmit when synchronization is lost. ‘Best Effort’ means that the unit will synchronize when there is a reference signal, but otherwise will operate in unsynchronized mode. TDD Holdover Duration (Master only). Default value 10 minutes, maximum 60 minutes. Specifies duration of holdover period following loss of the external timing reference for TDD synchronization. phn-0896_012v000 Jul 2010 6-65 4Gon www.4Gon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
