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Method of Procedure
Operations and Maintenance
Operations and Maintenance
126
RFN_3.1 Beta
two RFS components. During installation, ensure that the URU is receiving
power before installing RFS components.
power before installing RFS components.
Each RJ45 port has two LEDs: Link (right) indicates Ethernet connectivity, and
Activity (left) blinks to indicate Ethernet activity between RFS components. For all
other conditions, refer to the following table.
Activity (left) blinks to indicate Ethernet activity between RFS components. For all
other conditions, refer to the following table.
Indication
Possible failure
Corrective action
LEDs are not lit
connection is not being
made between URU
and RFS components
made between URU
and RFS components
Verify that the URU is plugged in to an
approved power source.
approved power source.
Verify that each RFS component is
powered on.
powered on.
Verify that all cabling between the RFS
components is properly connected.
components is properly connected.
7.4 Field Replaceable Units
7.4.1 iSC-3
For the iSC-3 and EAS, refer to Chapter 11 “FRU Replacement Procedures” of
the Gen 3 Site Controller System Manual, Motorola, 68P80801E30-O.
the Gen 3 Site Controller System Manual, Motorola, 68P80801E30-O.
7.4.2 Power
Plant
7.4.2.1
Removal and Replacement of Distribution CBs
1 Loosen the three screws that secure the top access cover, and then remove
the cover.
2 Grasp the Circuit Breaker to be replaced and pull it out until it is removed
from the assembly.
3 Install the new CB, pressing it in until it is firmly seated.
Note: Be very careful when installing the output breakers. The common pin of
the alarm circuit on the breaker must engage the jack on the plant. Tolerance
is tight; go straight in with the breaker.
the alarm circuit on the breaker must engage the jack on the plant. Tolerance
is tight; go straight in with the breaker.
4 Ensure there is not a Fuse Alarm condition present. If an FA is present,
remove and install the CB until the FA condition clears.