ADC Telecommunications Inc. F0684-112 사용자 설명서

9-8

CONFIDENTIAL

• All of the Expansion Hub 

 and 

 LEDs that have RAUs connected 

should be Green/Green, indicating that the RAU is powered on, communication is 
established, and operation is normal.

• The 

,

, 

, and

LEDs should all be Green.

RAU is not 
connected

Off

If the RAU was disconnected acci-
dentally, re-connect the CATV 
cable. The Expansion Hub’s port 
LEDs should change to Green/Red 
(then Green/Green, after 20 sec-
onds, if the Main Hub is connected, 
powered on, and has band pro-
grammed).

Use AdminBrowser’s “Clear All 
Disconnect Status” command if 
you are permanently removing the 
RAU from service. The Expansion 
Hub’s port LEDs should change to 
Off/Off.

The RAU was previously connected, 
but it is not currently connected; the 
RAU cable is disconnected.

RAU is 
connected

Red

Disconnect/reconnect the CATV 
cable to force power-on reset to the 
RAU. If the port LEDs remain Red 
check for the exact cause of Expan-
sion Hub faults using Admin-
Browser.

Lost communications with the RAU. 
The RAU could have powered down 
due to over current; cable could have 
been damaged.

Flashing 
Red (60 
ppm)

The RAU reports a fault condition; 
check for the exact cause of Expan-
sion Hub and RAU faults using 
AdminBrowser.

Depends on the fault condition.

Flashing 
Red (60 
ppm)

The Expansion Hub reports no con-
nection, cable shorts, or a current 
port trap condition.

Expansion Hub communications with 
the RAU. The Expansion Hub is at 
fault. The cable could have been dam-
aged. The cable leads may be shorted.