Comtech EF Data CRS-311, Installation And Operation Manual

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CRS-311 1:1 Redundancy Switch Revision 7
Front Panel Operation MN/CRS311.IOM
5–16
5.2.4.3.1 (MONITOR: STORED-EVENTS)
Æ
VIEW
LOG23: 26/01/00 10:37:32
FT-06 RX ALARM (UP/DN)
Use the
▲▼
arrow keys to scroll backwards or forwards through the event log entries. Press ENTER
or CLEAR to return to the previous menu.
The event log can store up to 98 events. When a fault (FT) condition occurs, it is time ‐ stamped and
placed in the log.
Similarly, when the fault condition clears (OK), this is also recorded as per the following
example:
LOG24: 26/01/04 10:37:35
OK-06 RX ALARM (UP/DN)
Next to the FT/OK indicator is a code for the faulted unit: the TM , (for Traffic Modem), RM (for
Redundant Modem) or SW (for the Switch).
5.2.4.4 (MONITOR:) COMMS (Communications State)
COMMS: TRAFFIC: OK
REDUNDANT: FT
This screen indicates whether the Switch I/O communications with the modems is good (OK) or
bad (FT). This does not indicate fault status.
5.2.4.5 (MONITOR:) IO
T <0000/LRS ?
>0000/LRS=1
This screen shows actual communication strings between the Switch and the modems. While in
this mode, communication is slowed to enable viewing of messages. Because of this, it should
only be used for troubleshooting purposes.
•
On the top line: Switch controller’s outbound messages. The first character indicates
the device being addressed ( T = Traffic Modem; R = Redundant Modem).
•
On the bottom line: Modem responses.