Mocomtech CRS-300 - Manual (Page 195)

CRS-300 1:10 Redundancy Switch Revision 16
Front Panel Operation MN/CRS300.IOM
7–15
7.6.2 MONITOR: SW-ALARM
The following are examples of possible Switch status displays, along with suggestions to assist
the User in diagnosing the reason for the fault.
SWITCH ALARM: NONE
There are no faults. The front panel LED “Unit Status” should be GREEN.
SWITCH ALARM: -12V PS-B
Ì IS UNDERVOLTAGE
There is a fault. Power supply “B” is under voltage. The front panel LED “Unit Status” will be RED.
Suggestions:
•
Ensure power supply power cord is connected and the power switch is ON.
•
Replace defective power supply module.
•
If the second power supply module is not needed, the User can mask this Alarm.
SWITCH ALARM: RM PROBLEM
RM I/O TIMEOUT
There is a fault. Communication has been lost to the Redundant Modem. The front panel LED
“Unit Status” will be RED.
Suggestions:
•
Check Cable Connections – refer to Chapter 4. CABLES AND CONNECTIONS.
•
Check Modem Configurations – refer to Chapter 5. MODEM, RMI/TMI, AND SWITCH
CONFIGURATION.
SWITCH ALARM: RM PROBLEM
MGC refused, code:12 TFT
There is a fault. COMs are good to the Redundant Modem, but the configuration of the bridged
Traffic Modem cannot be configured into the Redundant Modem. The front panel LED “Unit
Status” will be RED.
Suggestion: Ensure the most capable modem is used for the redundant, with regard to FAST
options, installed options, e.g. Turbo card, firmware version, and hardware revision. The code
indicates the parameter within the MGC configuration string that is causing the Redundant
Modem to refuse it.