User's Manual

PN 8700-10 Help Hot Line (U.S. only): 1-800-530-9960 3-7
620003-0 Rev. A
PRELIMINARY LED Indicators
Port LEDs
The Main Hub has one pair of fiber port LEDs for each of the four Expansion Hub
ports. The LED pairs can be in one of four states, as shown in the following table, in a
combination of the following:
off
steady green
steady red
The port LEDs indicate the status of the Expansion Hub and RAUs; however, they do
not indicate which particular unit is having a problem (i.e., the Expansion Hub vs.
one of the RAUs).
Table 3-2 Main Hub Port LED States
LED State Indicates
Off
Off
• Expansion Hub not connected
Green
Green
• Expansion Hub connected, communications normal
• No faults from Expansion Hub or any connected RAU
Red
Off
• Loss of communications with Expansion Hub
Green
Red
• Expansion Hub connected
• Fault or lockout reported by Expansion Hub or any connected RAU
LINK
E-HUB/RAU
LINK
E-HUB/RAU
LINK
E-HUB/RAU
LINK
E-HUB/RAU