Product
Overview
SURFboard® SB6121
•
DOCSIS® 3.0 Cable Modem
•
User Guide
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365-095-25896-x.1
Product Overview
Front Panel
Figure 1 – SB6121 Front View
Table 2 – SB6121 Front Panel LED Icons
LED Icon
Flashing
On (Solid)
Not applicable — icon does not
flash
Green
: Power is properly connected
Scanning for a downstream
(receive) channel connection
Green
: Non-bonded downstream channel is connected
Blue*
: High-speed Internet connection with bonded
downstream channels
Scanning for an upstream (send)
channel connection
Green
: Non-bonded upstream channel is connected
Blue*
: High-speed Internet connection with bonded
upstream channels
Scanning for an Internet
connection
Green
: Startup process completed
Transmitting or receiving data
on Ethernet port
Amber
: A device, computer, or hub is connected to the
Ethernet (10Base-T) or Fast Ethernet (100Base-T) port
Blue*
: High-speed Gigabit Ethernet (1000Base-T)
connection from the SB6121 to your computer
*Blue
- Indicates DOCSIS 3.0 operation (high-speed Internet access) which may not be available in all
locations. Check with your service provider for availability in your area.
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