Comtech EF Data CDM-740, Инструкция по установке и эксплуатации

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CDM-740 Advanced Satellite Modem Revision 0
Front Panel Operation MN-CDM740
5–21
5.6.2 Monitor: Stored-Events
Stored Events: Clear-All View
(
◄►
E)
Select
View
or
Clear-All
using the
◄ ►
arrow keys, then press
ENTER
.
5.6.2.1 (Monitor:) Stored-Events
Æ
Clear-All
Clear All Stored Events: No Yes
(
◄►
)
Use the
◄ ►
arrow keys to select
Yes
or
No.
Press
ENTER
when done.
If
Clear-All=Yes
is selected, the event log is cleared and the user is returned directly to the
previous menu. However, if there already are faults present on the unit at this time, they will be
re-time-stamped, and new log entries will be generated.
5.6.2.2 (Monitor:) Stored-Events Æ View
Event 006(
v
): 01/01/09 00:00:00:24
Clear Unit FEC card
An example of a Stored Events screen is shown.
The event log can store up to 255 events. When a fault condition occurs, it is time- & date-
stamped and put into the log. Similarly, when the fault condition clears, this is also recorded.
Note that, in accordance with international convention, the date is shown in
DAY-MONTH-
YEAR
format.
Use the
▲ ▼
arrow keys to scroll up and down through the event log entries. Press
ENTER
or
CLEAR
to return to the previous menu.
5.6.3 Monitor: Rx-Params
Rx Parameters: EsNo=99.9
BER=9999 RxLevel=LT-90
This
read-only
screen provides the active Rx Parameters mode information as follows:
Item Description
EsNo
Displays the value of Es/No calculated by the demodulator. The value
referred to here is the energy per symbol bit (Es), divided by the noise
spectral density (No).
BER Displays an estimate of the corrected Bit Error Rate
.
RxLevel
Displays the dBm reading indicating the signal level of the desired receive
carrier. Resolution: 0.5dB