Top and front panel, Key light flashing on – Motorola SBV5120 User Manual
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SBV5120 Series VoIP Cable Modem User Guide
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Top and Front Panel
For added security, when using coaxial cable for upstream communication, you can press the Standby button
(1)
to suspend your Internet connection. No data is transmitted or received from the Internet when the Standby light is
on. All other front-panel lights turn off until you press the Standby button again except the Tel 1 and Tel 2 LEDs.
The lights provide information about power, communications, and errors:
During normal operation, the Power, Receive, Send, and Online lights are on and the Link light flashes when the
VoIP cable modem is transferring data.
Key Light
Flashing
On
2
Power
Startup diagnostics in progress
The VoIP cable modem is powered on.
3
DS
(Downstream)
Scanning for a receive (
)
channel connection
The downstream channel is connected.
4
US
(Upstream)
Scanning for a send (
)
channel connection
The upstream channel is connected.
5
Online
Scanning for a network connection
The startup process is complete.
6
Link
Transmitting or receiving data
A device, such as a computer or hub, is connected to the
USB or Ethernet connectors on the back panel.
7
Tel 1
Connected and activated,
telephone is off-hook (in use).
Connected and activated, the telephone is on-hook
(not in use.)
8
Tel 2
Connected and activated,
telephone is off-hook (in use).
Connected and activated, the telephone is on-hook
(not in use.)
9
Standby
This light does not flash
Internet service is blocked because the Standby button
was pressed. If this light is on, all other lights are off.
The model number on your VoIP cable
modem may be different than in the
illustrations and screen images in this
guide.
SBV5120
SURFboard®
Cable Modem
PO
WER
DS
US
ON
LI
NE
LINK
TEL 1
TEL 2
ST
ANDBY
1
2
3
4
5
6
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8
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