Teledyne 7 RU Chassis, Operation Manual, Page: 131 / 144

Operations Manual, 7RU SSPA Chassis 208528 REV M 131
7.6.3 Extended SNMP Operation
The SSPA Chassis is equipped with a DigitalCore5 control board and utilizes firmware ver-
sion 6.00 and above. These units feature an extended SNMP MIB and support SNMP traps.
This extended MIB covers several OID objects related to SNMP trap functions.
These units allow independent functioning of two SNMP traps (asynchronous notifications):
Fault trap and Conditions trap. Both traps can be enabled or disabled by the operator. 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 community
name is not user selectable.
The Fault trap allows asynchronous notification of the SSPA fault state change. When ena-
bled, 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 present after device power-up, Fault Trap
will issue a “Cold Start” notification to the manager.
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: For-
ward RF Level, Reflected RF Level (for units equipped with a Reflected RF sensor), DC Cur-
rent level, PS Voltage level, module plate temperature, LNA current (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 determine
the upper and lower limits for the condition window. Window values must be selected accord-
ing to the relevant selected condition measured by the unit. For example: 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 selected
condition is outside the selected measurement window. For units with multiple measured pa-
rameters, 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.