Comtech EF Data CDM-625, Инструкция по установке и эксплуатации

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CDM-625 Advanced Satellite Modem Revision 1
Front Panel Operation MN-0000036 (Ref MN/CDM625.IOM)
5.4.10.7 CONFIG: Misc
Æ
Warm-Up
High-Stab Reference Warm-Up Delay:
Enabled (None,Enable) (
v
)
The High-Stability Reference Module contains an oven for the crystal. It can take a little time for
the oven & crystal to come up to temperature; during this time, the frequency accuracy is not
guaranteed.
This menu permits the user to select a Warm-up Delay, which will be implemented on power-up.
The delay is calculated by the modem, based on temperature and the amount of time the unit was
turned off. This is much more important at L-band (950 – 195 MHz) than at 50-180 MHz, where
the 10 MHz reference may also be used for RF conversion equipment.
If the Warm-up Delay is enabled, when the modem is powered up, a Warm-Up Delay Countdown
will be activated, during which the Tx is suppressed. A countdown of the remaining Warm-up
Delay is displayed on the front panel, for example:
Comtech CDM-625 Advanced Satellite Modem
High-Stability Ref warming up: 045 sec
If necessary, this Warm-up period can be by-passed by pressing the
CLEAR
key.
5.4.10.8 CONFIG: Misc
Æ
Statistics
Link Statistics Logging Interval:
10 minutes (00 to 90) (
v
)
The Logging Interval is the period of time over which the performance statistics will be
measured. Edit the logging interval using the
▲ ▼
arrow keys, then press
ENTER
. Setting a
value of 00 disables the feature (no logging).
The user can choose: disabled, 10, 20, 30, 40, 50, 60, 70, 80, or 90 minutes. For more
information about the Statistics data taken, refer to
Section 5.6.3 Monitor: Statistics
. To view
the Statistic log information, from the
SELECT:
(Main) menu, go to
Monitor
:
Statistics
.
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