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CDM-625A Advanced Satellite Modem
Front Panel Operation
6.2.8.3
FAST: CnC
FractionalCnC:1-YearCounter=00000000 sec
Fractional CnC is common in 1:1 or 1:N redundancy systems where the primary modem has a
full CnC license, and the backup modem(s) has a Fractional CnC license. A Fractional CnC licenses
allows 90 full calendar days of CnC usage in one calendar year. This lowers the cost of the
modem but does not allow for constant, round-the-clock operation.
When Fractional CnC Mode is ordered, the number of seconds remaining for both the 1-year
(top line) and 90-day (bottom line) activation timers are displayed here.
When the counters expire, the following message is displayed:
Fractional CnC is not installed.
As per the previous screen examples, if Fractional CnC is not installed in the CDM-625A, the
modem displays a message that no CnC license is installed and provides "time remaining" and
"time remaining refill" timers; or that a Full CnC license is installed and the screen displays no
timers. Note the following:
•
1-YearCounter – This is the calendar year counter, in seconds, that resets the 90-
DayCounter to 90 full days of CnC usage when it reaches 00000000. This counter continually
decrements and accounts for time even when the modem is powered Off. Once this timer
fully decrements, the 1-YearCounter resets to 31536000 once again and immediately begins
to decrement.
The 1-Year Counter cannot be reset or refilled in the field. Once the timer has
run out, your only options are to:
Using Fractional CnC is not a normative mode of operation. To best inform you
that your modem is running Fractional CnC (i.e., the "1-YearCounter" counter
is actively decrementing), your modem does the following:
90-DayCounter= 0000000 sec
1. Upgrade the modem to a full license.
2. Wait until "1-YearCounter" reaches 00000000.
o The front panel RED Unit Status LED will blink on and off.
o The modem generates an Event in the Event Log every 12 hours that
indicates Fractional CnC is running.
o When connected to a 1:1 redundant switch, the modem generates a
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Revision 0
MN-CDM625A
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