Teledyne 6 RU Chassis, Operation Manual

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148 202058 REV AA 6 RU SSPA Chassis Operations Manual
9.6.3 Extended SNMP Operation
The 5RU SSPA Chassis is equipped with a DigitalCore5 control board and utilizes firm-
ware version 6.00 and above. These units feature an extended SNMP MIB and sup-
port SNMP traps. This extended MIB covers several OID objects related to SNMP trap
functions.
These units allow independent functioning of two SNMP traps (asynchronous notifica-
tions): Fault trap and Conditions trap. Both traps can be enabled or disabled by the op-
erator. The operator can also specify how many times the same trap notification will be
sent back to the SNMP manager.
The SNMP manager IP address is also selectable by the operator. This IP address
must be specified in the relevant OID branch.
Every trap message is marked by the fixed trap community string “trap”. This communi-
ty name is not user selectable.
The Fault trap allows asynchronous notification of the SSPA fault state change. When
enabled, trap notification will be sent to a manager every time either the summary fault
state or a fault type is changed. The Last Fault Time ticks counter will be reset each
time the summary fault changes its state to “Alarm” or when a new fault condition is
detected. This counter also resets itself during device power-up. If no faults are pre-
sent after device power-up, Fault Trap will issue a “Cold Start” notification to the man-
ager.
The Condition Trap allows the unit to generate asynchronous notifications independent
from the unit fault state. Currently, the following conditions can be used for this trap
triggering: Forward RF Level, Reflected RF Level (for units equipped with a Reflected
RF sensor), DC Current level, PS Voltage level, module plate temperature, LNA cur-
rent (if an external LNA is powered through the SSPA auxiliary power port).
To enable this trap, set the Condition Trap Resend option to a non-zero value and de-
termine the upper and lower limits for the condition window. Window values must be
selected according to the relevant selected condition measured by the unit. For exam-
ple: Temperature must be selected in degrees, RF power in tenth of dBms, etc.
After successful configuration, the SSPA will generate a notification every time the se-
lected condition is outside the selected measurement window. For units with multiple
measured parameters, the relevant condition location must be selected (i.e., units with
two power supplies use 1 for PS1, and 2 for PS2). For other conditions, this value is
“don’t care”.
Both traps will send a “Device Up Time” time stamp with every trap notification.