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Determining the Operating Status
Turning on power to a Stinger MRT unit
Turning on power to a Stinger MRT unit
To turn on power to a Stinger MRT unit:
1
Make sure that input and return connectors from a dc power source are properly
attached to the unit. (For instructions, see "Connecting power to a Stinger MRT
unit" on page 4-2.)
2
Turn on the power source for the connectors that are attached to the unit.
3
Observe the following behavior on the unit's status lights to verify that the unit is
operating normally. (For more information about status light behavior, see
"Status lights" on page 4-4.)
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Turning off power to a Stinger MRT unit
To turn off power to a Stinger MRT unit, turn off the power source for the connectors
that are attached to the unit.
Warning
while their power source is still supplying voltage.
Status lights
The indicator lights on a Stinger MRT indicate the status of the unit. They also
indicate the status and activity on lines connected to the unit, and the presence of a
major or minor alarm condition. For information about the status lights for a trunk
module, see the configuration chapter for that module.
Figure 4-4 shows the locations of the Stinger MRT status lights.
4-4
All Stinger status lights momentarily turn ON just after startup.
The MAJOR alarm status light turns ON at startup. It remains ON while the
unit runs its POST in the boot loader. It continues to remain lit while the unit
loads its operational code from flash memory. If the unit successfully loads its
operational image from flash memory and again passes POST, the MAJOR
status light turns OFF. If the MAJOR status light remains ON or blinks
continuously, it indicates a failure.
After startup, all 10 line STATUS lights and the MINOR alarm status light
turn OFF. Then after the system comes up, each light monitors a particular
status as described in "Status lights."
Do not remove the connectors from the Stinger MRT power terminals
Stinger® MRT Getting Started Guide
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