Comtech EF Data CDM-750, Инструкция по установке и эксплуатации

Страница: 140 / 300

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Front Panel Operation MN-CDM750
5–64
If the Demo Mode timer reaches 00:00:00:00 while the modem is running a
FAST feature that is not a purchased FAST feature, the modem will fall into
an invalid state, turn off its carrier, and revert all settings to factory default
settings.
5.2.9.3 FAST: CnC
FractionalCnC:Time Remaining: 90:00:00:00
Time Remaining Refills In 364:23:59:31
Full CnC License is installed.
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 a calendar year. This lowers the cost of the modem but does not allow for
constant, round ‐ the ‐ clock operation.
As per the previous screen examples, if Fractional CnC is not installed in the CDM ‐ 750, 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:
•
FractionalCnC: Time Remaining – This is the amount of time, in the form dd:hh:mm:ss (days:
hours:minutes:seconds), that that the modem can be run in CnC mode. This counter decrements
under the following conditions:
o
The modem has a Fractional CnC license
o
The modem is powered on
o
The modem’s TX is On
o
The modem is in standalone mode or in 1:1 redundancy configuration and is Online
o
The modem is NOT in Demo Mode. If the timer reaches 00:00:00:00, the modem will
turn its TX Off and the circuit will be down.
•
Time Remaining Refills In – This is the calendar year counter that resets the FractionalCnCTime
Remaining to 90 full days of CnC usage when it reaches 00:00:00:00. This counter continually
decrements and even accounts for time when the modem is powered Off . Once this timer fully
decrements, Time Remaining Refills In once again resets to 365:00:00:00 and immediately
begins to decrement.