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CDM-600L Satellite Modem
Front Panel Operation
OPEN NETWORK
LOSE TxFRM
BER>10E-3
LOSE TxMUL
TxSIG AIS
TX TERR RM
IBS RX REM
IDR RX BW1-4
IDR TX BW1-4
Refer to Chapter 15 for all possible faults.
6.3.4.2
MONITOR: STORED EVENTS
STORED EVENTS:
#199 FT-FRAME SYNC
An example of a Stored Events screen is shown. Use the [↑] [↓] arrow keys to select
All: YES or NO,
Use the [←][→] arrow keys to select the '#' character on the bottom line to view the log
entries. Scroll backwards or forwards through the entries in the event log, using the [↑] [↓]
arrow keys. Pressing ENTER or CLEAR will take the user back to the previous menu. The
event log can store up to 199 events. When a fault condition occurs, it is time-stamped and
put into the log. Similarly, when the fault condition clears, this is also recorded.
If the user selects CLEAR ALL, the event log is cleared, and the user is taken directly back
to the previous menu. However, if there are faults present on the unit at this time, they will
be re-time-stamped, and new log entries will be generated.
Note that in accordance with international convention, the date is shown in DAY-
MONTH-YEAR format.
6.3.4.3
MONITOR: STATISTICS
STATISTICS:
09/12/99 14:48:06
The user may scroll backwards or forwards through the entries in the statistics log, using
the [↑] [↓] arrow keys. Pressing ENTER or CLEAR will take the user back to the previous
menu.
Loss of Tx frame occurs in Drop & Insert operation, when the incoming T1 or E1 frame
cannot be found by the modem.
This error rate monitor is enabled for IBS and IDR framing.
Loss of Tx multiframe occurs in E1-CAS D&I operation, when the multiframe marker for
CAS signaling data cannot be found.
An AIS condition in the signaling positions of an incoming E1-CAS frame is monitored.
indicates the presence of the Tx terrestrial remote alarm on the incoming T1 or E1 frame
indicates the presence of the IBS satellite remote alarm (backward alarm) on the incoming
IBS frame from the transmit side of the link.
Multi-destinational backward alarms are the corresponding satellite alarms used by the
IDR frame structure.
Backward alarms 1-4 indicate that the hardware inputs available on the back panel of the
modem have triggered, resulting in the corresponding Tx backward alarm being
generated by the modem's IDR framer.
CLEAR ALL: NO
then press ENTER.
STA114:
16.0,16.0,9.0,9.0
CLEAR ALL: NO
6–35
(NO,YES)
23/07/01 16:25:24
(N/Y)
Revision 2
MN/CDM600L.IOM
Clear
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