HS 2000 System Administrator’s Handbook
Chapter 4. Monitoring System Operation
H.221/HDLC
89
Recv Video State
Indicates the current state of the receive video frame module. The H.261
standard specifies that a number of video frame alignment words must be
successfully received before the video signal is considered synchronized.
This counter reflects the various states involved in this process.
Recv Video State values are:
Port Restricted
Indicates whether one’s density must be maintained by the system during
a connection (on) or not (off).
Recv Video State
Description
Idle
The receiving video frame module (RVFM) is idle,
awaiting video input.
No Sync
The RVFM is searching for a frame alignment
word (FAW).
Sync Shift
The RVFM has found an FAW that requires
shifting to be aligned in memory.
FAW Found Once
The RVFM has found an FAW that is properly
aligned in memory.
FAW Found Twice
The RVFM has found a second aligned FAW.
Frame Sync
The RVFM has found a third aligned FAW.
Received video can now be processed. This is the
expected value once a connection is established.
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