3-18 Installation
Table 3-1
LED displays and OOB frequencies
Display Frequency Description
dl N/A OOB network download in progress
EF N/A Erasing Flash memory
FP N/A Flash memory is being programmed
____ N/A Network download complete
Hunt N/A Hunting for OOB frequency
FR 1 75.25 MHz Attempting to lock on frequency 1
FR 2 104.20 MHz Attempting to lock on frequency 2
FR 3 72.75 MHz Attempting to lock on frequency 3
FR 4 92.25 MHz Attempting to lock on frequency 4
FR 5 98.25 MHz Attempting to lock on frequency 5
FR 6 103.75 MHz Attempting to lock on frequency 6
FR 7 107.25 MHz Attempting to lock on frequency 7
FR 8 107.40 MHz Attempting to lock on frequency 8
FR 9 110.25 MHz Attempting to lock on frequency 9
FR 10 116.25 MHz Attempting to lock on frequency 10
Au N/A Authenticating code object (displays only after download)
When the correct OOB frequency is acquired, the LED flashes FR number.
When multiple OOB frequencies are used, the DCT3412 pauses 40 seconds on each valid
frequency. The LED displays dl and a progress indicator, which identifies a software object
download. The progress indicator, or crawling ant, moves one position around the dl display
for each segment of download received. If the dl stops moving up and down on the LED for
an extended period of time, contact the headend operator.
The progress indicator usually moves at a consistent rate as segment downloads are
received. If all the segments are retrieved in the first pass, the EF, AU, and FP messages are
displayed on the LED. If segments are dropped, the progress indicator appears to stall and
then inch forward after the dropped segments are retired.
The software download may take up to 45 minutes (or longer if the system is experiencing
high demand). As long as the progress indicator is spinning, the download is progressing.
When the progress indicator alternates between rapid and sluggish movement, this may
indicate that the stream is spinning too fast for existing plant conditions.
When the software object download is complete, the LED displays:
EF For up to 60 seconds during flash erasure
FP For up to 60 seconds during flash programming
When the LED display is blank, the terminal is ready for initialization and service
authorization using the addressable controller. Verify that the terminal is powered up or
reset within two minutes of a completed download.
DCT3412 Installation Manual