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Cable Modem Power-On and Initialization Sequence
When the cable modem is connected and powered on, it executes automatic
self-d iagnostic and installation procedures. You can see the status from the LED
indicators on the front panel of the cable modem.
LED light off: O; LED light on: @;
STATUS
Initialization Sequence
Power ON
Hardware Testing
Search Downstream
Channel
Downstream Locked
Search Upstream Channel @
Ranging OK and
Registration Success
Data Transmission (use Ethernet cable)
Send Data
Receive Data
Data Transmission (use USB cable)
Send Data
Receive Data
Ø If all LEDs appear normal, proceed to the "Verifying Installation" section to test
the cable modem and its connection to each part of the network. If any problem
occurs, proceed to "Troubleshooting" to solve the problem.
Ø After verifying operation, remember to keep the cable modem under the
recommended temperature requirement of 32° to 104° F (0° to 40° C). Keep the
area around the cable modem free from dust.
SMC8002CM Installation Guide
LED blinking: B;
POWER USB ENET SEND RECV SYNC READY
@
@
X
@
B
X
@
X
X
@
X
X
X
X
@
X
X
@
O
B
@
O
B
@
@
X
@
@
X
Don't Care: X
O
@
@
B
B
B
X
B
O
X
X
@
B
X
@
X
X
@
B
X
@
X
B
@
B
X
@
X
B
@
@
B
O
O
O
@
@
@
@
@
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