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
Table 3.1 LED Indicators ( with USB port )
NAME | COLOR | MODE | STATUS |
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Power | Green | On | O.K. |
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Cable | Green | On | Ready |
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| Blinking | Not Ready |
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LAN | Green | On | Connected |
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USB | Green | On | Connected |
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Activity | Green | Blinking | Cable Modem |
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| Transmit/Receive Data via |
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| Ethernet or USB |
Table 3.2 LED Indicators ( without USB port )
NAME | COLOR | MODE | STATUS |
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Power | Green | On | O.K. |
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Cable | Green | On | Ready |
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| Blinking | Not Ready |
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LAN | Green | On | Connected |
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RX | Green | Blinking | Receive Data from Cable (RF) |
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TX | Green | Blinking | Transmit data from Ethernet to |
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| Cable (RF) |
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.)
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