User's Manual

LGCell Remote Access Unit
5-4 LGCell 4.0 Installation, Operation, and Reference Manual PN 8100-40
620004-0 Rev. B
5.1.1 Remote Access Unit LED Indicators
The RAU has LEDs that provide diagnostic information and operational status of the
unit.
Figure 5-6 RAU LEDs
The RAU’s LED indicators are described in the following table.
When the RAU
SYNC LED turns red, it indicates that the RF power in the RAU is
shut down. When the fault is corrected, the
SYNC LED turns off.
5.2 LGCell Remote Access Unit Alarm
The RAU communicates its status to the Expansion Hub over the Cat-5 cable. The
Expansion Hub, in turn, communicates the status to the Main Hub. The Main Hub’s
MMF port LEDs can be used to help troubleshoot downstream problems; however,
the LEDs do not indicate which downstream unit has the alarm.
Table 5-1 RAU LED Indicators
LED Color Indicates
POWER
Green RAU is receiving power from the connected Expansion Hub.
SYNC
Red PLL is not locked or clock power is low.
Off No fault.
Power LED
Sync LED