Grass Valley iControl Supported Devices V.2 - Manual (Page 53)

iControl
Supported Device Reference Guide
45
• There are two types of alarms, global alarms for the whole unit and specific converter
alarms. Global alarms are provided by:
• MIB point moreStatus gives several different alarms and status
• MIB point sumAlrm gives an overall Alarm
• MIB points pos15rail , pos5Arail , pos5Brail and neg15rail give a voltage supervisor
alarm
• All alarms can be considered as health monitoring.
MIBs Used
The plug-in is currently compliant with the MIB called MITEQ-172138 . We use the RFC1213
MIB point sysUpTime to detect device reboot and loss of communication.
NSU1 160061
The Miteq 1:N New Switchover Unit (NSU) is designed to provide improved reliability for
advanced satellite communications systems. The NSU consists of a Control Unit, Switch
Modules and frequency converters. The Control Unit monitors the status of up to twelve
primary frequency converters and one backup frequency converter. When a fault is detected
on a primary frequency converter, the defective converter is automatically placed into
standby and the backup converter is placed on line in place of the defective converter using
the Switch Modules. The frequency converters can be prioritized so that critical
communication channels have access to the backup converter on a prioritized basis.
Switchover from a defective primary converter to the backup converter is achieved by
connecting the converters to a switch matrix. The defective converter is replaced by physically
removing its input/output signal lines and connecting them to the backup converter via the
switch matrix. This ensures continuous operation while the fault is corrected, or allows for
routine maintenance without disrupting signal transmission.
The plug-in supports the following alarms:
Note: In accordance with the MIB, some entries are optional. Consequently, if data
is not provided for a GSM alarm, the alarms status will remain
UNKNOWN forever and no
text will be associated. Regular expressions are used to parse data from SNMP
varbind .