Comtech EF Data CRS-500, Installation And Operational Manual

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CRS-500 1:N Redundancy System
Revision 4
CSU Front Panel Operation 8–20 MN-CRS-500
Suggestions:
•
Check cable connections – see Chapter 5. CABLES and CONNECTIONS.
•
Check modem configurations – see Chapter 7. CONFIGURE MODEMS for 1:N
REDUNDANCY .
Example 4:
Switch Alarm: RM Problem
MGC refused, code:12 TFT
There is a fault. COMMs are good to the Redundant Modem, but the configuration of the bridged
Traffic Modem cannot be configured into the Redundant Modem. The front panel SWITCH
STATUS LED will be RED.
Suggestion: Ensure that the most capable modem – with regard to FAST options, installed
options, etc. (e.g. Turbo card, firmware version, and hardware revision) – is used as the
Redundant Modem. The code indicates the parameter within the MGC configuration string that is
causing rejection by the Redundant Modem. The three-letter instruction code is indicated also to
assist you in decoding the problem parameters.
8.2.4.2 STATUS: Events (Stored Events)
Stored Events: View
Clear-all
Use the
◄ ► arrow keys to select
View or Clear-All . Press ENTER .
If Clear-All is selected, the event log is cleared and you are taken directly back to the previous
menu. However, if there are faults present on the unit at this time, new log entries will be
generated for those faults.
8.2.4.2.1 STATUS: Events

View
001: 26/01/15 10:37:32
FT-06 RX ALARM (UP/DN)
The event log can store up to 255 events. When a fault (FT) condition occurs, it is date- and time-
stamped and put into the log (note that the date is shown in
DAY/MONTH/YEAR format, in
accordance with international convention).
Next to the FT/OK indicator is a number/code for the faulted unit: the TM slot number (01 through
10), RM (for Redundant Modem 1) or SW (for the Switch).