Chapter 7: Operation
System summary and status
Page 7-13
TDD Synchronization
The TDD Synchronization section of the System Status page contains the attributes described
in
Table 201 System Status attributes – TDD Synchronization
Attribute
Meaning
TDD
Synchronization
Status
The status of TDD synchronization. Displayed at a TDD Master if TDD
synchronization is active. For a list of values and their meanings, see
Table 202 TDD Synchronization Status values and meanings for PTP-SYNC
Value
Meaning
Inactive
TDD Synchronization has been administratively disabled.
This value is not displayed in the System Status page, but can
be determined from the SNMP MIB.
TDD Synchronization Status is always in the Inactive state at a
TDD Slave unit.
Cluster Timing Master
The ODU has been configured as a Cluster Master with an
internal reference, and is communicating correctly with the
PTP SYNC unit.
Initialising
The wireless link is down, and the master ODU is attempting to
synchronize the TDD frame structure with an external 1 pps
reference.
Synchronization proceeds more rapidly in this state than in the
Acquiring Lock state, because the TDD master does not need
to consider the ability of the TDD slave to track changes in
frame timing.
PTP-SYNC Not Connected
The ODU is not able to communicate with the PTP SYNC unit.
Locked
The master ODU has locked the TDD frame structure to the 1
pps reference received at the input of the PTP-SYNC unit.
The ODU may be a Cluster Master or a Cluster Slave.
The ODU is transmitting.
Holdover (No GPS Sync In)
The 1 pps reference has been lost at the input to the PTP-SYNC
unit, and the ODU in a free running state.
The ODU is transmitting.
If the reference input is not restored, the Holdover state will
terminate automatically after a period set by TDD Holdover
Duration.
Содержание PTP 670 Series
Страница 1: ...F Cambium PTP 670 Series User Guide System Release 670 02 50 ...
Страница 349: ...Chapter 5 Installation Installing an SFP Ethernet interface Page 5 52 Correct Incorrect ...
Страница 405: ...Chapter 6 Configuration and alignment System menu Page 6 46 Figure 151 LAN Configuration page PTP topology TDM support ...
Страница 406: ...Chapter 6 Configuration and alignment System menu Page 6 47 Figure 152 LAN Configuration page PTP topology SFP support ...
Страница 408: ...Chapter 6 Configuration and alignment System menu Page 6 49 Figure 154 LAN Configuration page HCMP topology ...
Страница 416: ...Chapter 6 Configuration and alignment System menu Page 6 57 Figure 156 QoS Configuration page IP MPLS ...
Страница 445: ...Chapter 6 Configuration and alignment Management menu Page 6 86 Figure 173 Time Configuration page SNTP enabled ...
Страница 551: ...Chapter 7 Operation System statistics Page 7 64 Figure 250 Main Port Counters page when main port is bridging traffic ...