Cisco ubr924 Installation And Startup page 15

Verify Installation (continued)
Troubleshoot Connections
General
LED Status
OK System LED is off.
1, 2, 3, or Ethernet LEDs are
4 off when data is
transmitted to/from
the device.
LINK Cable RF LED is
off.
Cable RF LED is
blinking.
DS Downstream LED is
off.
Possible Problem
Power cord not properly seated.
Power outlet not operating.
Power supply has failed or you have a
faulty router.
PC/device not powered on.
Bad Ethernet connection.
Incorrect cable between the router, the
hub if applicable, or the PC.
Faulty Ethernet card.
Router searching for a signal; RF levels
wrong.
Cable is out.
Router is locked to a signal and
connecting to the headend per DOCSIS.
RF coaxial cable is not properly
connected to the router.
Suggested Action
Check power connections.
Check the outlet.
Contact field service dispatch to
replace the power supply or router.
Verify PC/device powered on.
Reseat the Ethernet cable at both
ends. Make sure TCP/IP and DHCP
are enabled.
Replace the cable, reviewing the hub
user guide or Ethernet user guide.
Notify the subscriber to replace the
Ethernet card.
Check for a DOCSIS system signal
and verify the nearby analog video
signal is within the correct range—0
to +15 dBmV for most CATV
systems.
Check if the cable TV is working if
the subscriber also subscribes to
broadcast TV services.
Wait until the router completes
initialization. The router can pause
on a digital video signal during
installation, but will time out and
then locate the DOCSIS system
signal.
Reconnect the cable.
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