User's Manual
Help Hot Line (U.S. only): 1-800-530-9960 8-5
D-x620610-0-20 Rev D CONFIDENTIAL
Replacing a Fusion Main Hub
10. Click SYSTEM CONFIGURATION and click on SETUP NETWORK CONNECTION OR
M
ODEM CONNECTION if the Main Hub has Network or Modem equipment con-
nected to it.
During System Test, the entire system is temporarily off-line and no RF is
being transmitted.
Checking the Main Hub’s LEDs
• The LEDs should blink through a 5-second test on power up.
• If the LEDs do not blink on power up, replace the Main Hub.
• If the LEDs do not illuminate at all, make sure the AC power cable is con-
nected.
• For each fiber optic port that has a connected Expansion Hub, which has been pro-
grammed with a band, the
PORT LED should be green.
• Refer to Section 9.3.2, “Troubleshooting Using LEDs,” on page 9-5 for more LED
states.
NOTE: If there is no communication between the Main Hub and the Expansion
Hubs, use the AdminBrowser to isolate system problems.