User's Manual

LGCell 4.0 System Description
2-14 LGCell 4.0 Installation, Operation, and Reference Manual PN 8100-40
620004-0 Rev. B
2.4.3 Alarm LEDs
The Main Hub has LINK STATUS and SYNC LEDs for each fiber port. The Expansion
Hub has
LINK STATUS and SYNC LEDs for each Cat-5 (RAU) port.
Unit Alarm Name LED Color Condition
Main Hub Power Green AC power is ON
Sync
(above power)
Green Main Hub’s phase lock loop (PLL) is locked
Off Main Hub’s PLL is not locked
Port Link Status Green The Main Hub is receiving a signal from the Expansion Hub without
an alarm signal
Red The Main Hub is receiving an alarm signal from the Expansion Hub
Port Sync Green The Expansion Hub and its connected RAUs do not have an alarm
Red The Expansion Hub or one of its connected RAUs has an alarm
Expansion Hub Power Green AC power is ON
Sync
(above power)
Green The Expansion Hub is receiving the pilot signal
Off The Expansion Hub is not receiving the pilot signal
Port Link
Status/Port
Sync
Green/Green The RAU is connected and functioning properly
Green/Red The Connected RAU is malfunctioning
Red/Green The RAU has been disconnected or the cable is cut
Red/Red No RAU is connected
RAU Power Green DC power to RAU
Sync Red PLL is not locked or clock power is low