Chapter 6 Cable Modem Led Operation - Cables to Go DOCSIS Cable Modem User Manual

DOCSIS 1.0/ 1.1 Equivalent Cable Modem

Chapter 6 Cable Modem LED Operation

There are no user controls on your cable modem. To operate, simply apply power to
the unit by inserting the AC Adapter into an AC power outlet. Connecting the AC
adapter to an AC protection circuit is always recommended.
1. LEDs mean
Your cable modem provides status information to the user. Five Light-Emitting-Diodes
(LEDs) located on the front panel provide this information as detailed in Table 3.1 or
Table 3.2.
Table 3.1 LED Indicators ( with USB port )
NAME COLOR
Power Green
Cable Green
LAN Green
USB Green
Activity Green
Table 3.2 LED Indicators ( without USB port )
NAME COLOR
Power Green
Cable Green
LAN Green
RX Green
TX Green
2. LED power-on sequence:
a). Power LED on. (It indicates that CM gets power from the power adapter.)
b). All LEDs but POWER blink 2X. (Blinking twice for a second after booting up. It
means SDRAM and Flash are O.K., and CM is ready to work. )
c).Cable LED blinks fast. (Blinking thrice per second. CM is trying to find DS
frequency.)
d). Cable LED blinks slow. (Blinking once per second. CM is trying to find US
channel, DS was found now.)
e). Cable LED blinks really slow. (Blinking 2 seconds a time. CM is trying to register
to CMTS/DHCP/TFTP. )
f). Cable LED ON. (Solid on. CM is operational.)
12
MODE
On O.K.
On Ready
Blinking Not Ready
On Connected
On Connected
Blinking Cable Modem
Transmit/Receive Data via
Ethernet or USB
MODE
On O.K.
On Ready
Blinking Not Ready
On Connected
Blinking Receive Data from Cable (RF)
Blinking Transmit data from Ethernet to
Cable (RF)
STATUS
STATUS