Apple U10C011 manual LEDs indications

Installation problems with the cable modem are commonly due to the cable network and its topography. LEDs on the front panel of the cable modem reveal operational status and help you determine problem areas.

			LEDs indications				( “X” means not applicable)
Initialization	power	usb		enet	send	recv	sync	ready
Sequence
Power ON	On	Off		Off	Off	Off	Off	Off
Hardware	On	Off		Off	Off	Off	Off	Off
Testing
Search
Downstream	On	X		X	X	Blink	Off	Off
Channel
Downstream	On	X		X	X	X	On	Slow
Locked								Blink
Search
Upstream	On	X		X	X	X	On	Fast Blink
Channel
Ranging OK
and	On	X		X	X	X	On	On
Registration
Success
Ethernet Port	power	usb		enet	send	recv	sync	ready
Send Data	On	Off		Blink	Blink	X	On	On
Receive Data	On	Off		Blink	X	Blink	On	On
USB Port	power	usb		enet	send	recv	sync	ready
Send Data	On	Blink		Off	Blink	X	On	On
Receive Data	On	Blink		Off	X	Blink	On	On

User’s Guide 29