Chapter 9
Measure Mode – Service Tab
DOCSIS
210
DSAM Help User Guide
Rev. 001
Step 1
During Step 1 of the DOCSIS Test process, DSAM attempts to tune in
to and measure the downstream DOCSIS channel attributes and
displays the following text next to the first box:
– Loading DOCSIS application
– Locking on to downstream
– Analyzing downstream
– DOCSIS channel found
Step 2
During Step 2 of the DOCSIS Test process, DSAM captures the
system timing (SYNCs), upstream channel information (UCDs), and
time slots (MAPs) and displays the following text next to the second
box:
– Acquiring upstream channel data
– Upstream channel data acquired
Step 3
During step 3 of the DOCSIS Test process, DSAM establishes the
optimum cable modem transmitter output power level through a
process defined in the DOCSIS specification and displays the
following text next to the third box:
– Ranging with CMTS
– Ranging complete
Figure 189
Measure Mode – DOCSIS Test in Progress
21128026 R001 DSAM Help User Guide.book Page 210 Thursday, February 5, 2009 2:02 PM
