Specifications

FibeAir 4800 Installation and Operation Guide Chapter 3 Operation
FibeAir 4800 Installation and Operation Guide 3-3
Red
ON – Local or Remote loopback
ON – Alarm detected at the local interface
WAN/LAN Indicators
The WAN/LAN and TDM connectors (IDU-E rear panel, IDU-C front panel) have
LED indicators that show the operating status. Table 3-2 and Table 3-3 describe the
indicators.
Table 3-2. WAN/LAN LEDs
Name Color Function Location
LINK Green On – Good Ethernet link integrity WAN/LAN
connectors
ACT Yellow Blinks according to the Ethernet traffic WAN/LAN
connectors
Table 3-3. TDM Traffic Indicators
Function Green LED Red LED
OK On Off
AIS Off On
LOS Off On
Loopback On Blinking
Normal Indications
Upon turning on FA4800, the PWR LED in the IDU-E front panel lights to indicate
that FA4800 is on. Table 3-4 shows the correct status of the indicators at power-
up.
Table 3-4. FA4800 Indicators at Startup
Indicator Color Status
PWR Green ON (IDU-E only)
IDU Orange
Green
ON for short duration during startup
ON during normal operation
ODU Green ON shows normal operation
AIR I/F Orange
Green
ON for short duration during startup
ON shows normal operation
SERVICE Green ON shows normal operation
OFF when Service is configured for Ethernet only
If the above LED indications do not appear following initial power turn-on, refer to
Chapter 5 for the diagnostic test instructions.