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Status • Reports
APEX1000 All-Purpose Edge QAM Software Version 2.4.x • Installation and Operation Manual
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573408-001-a
DTI Status
Use this window to displays information on the status of the DOCSIS Timing Interface
parameters in the system. The DTI (DOCSIS Timing Interface) is the interface between
the DOCSIS time server (DTI Server) and each DTI client, providing DOCSIS Time
Stamps containing the 10.24 MHz Master Clock reference from an external time server.
For access, select
Status > DTI Status
:
Figure 12-15 — DTI Status window
Note: In the M-CMTS architecture, both the M-CMTS core and the EQAM are
considered DTI clients.
DTI Status window field definitions
Item
Definition/Range
Link Status
Indicates the DTI link status for each of the DTI ports in the APEX.
Cable Advance
Indicates the current Cable Advance value last reported by the DTI server for
each of the DTI ports in the APEX.
DTI Client Mode
Current DTI mode (such as
Free-run
or
Normal
) for the DTI client in the APEX.
Client Phase Error
Current Phase error value for DTI client in APEX. This value represents the error
of its local clock with respect to the delay-corrected server frame clock.
Current Timestamp
Current Timestamp value for DTI client in APEX. This value represents the
accurate timing value to be inserted in SYNC messages when required by
specific DEPI session configuration.
Note: DTI clients may reside in M-CMTS devices, Edge QAM (EQAM) devices or
Upstream Receivers.
