Top and front panel, Key light flashing on – Nikon SBV5121 User Manual
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SBV5121 VoIP Cable Modem User Guide
3
Top and Front Panel
For added security 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 for Tel 1 and Tel 2. Standby does not affect your telephone service. Voice
service still operates when Standby is on.
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,
except for Tel 1 and Tel 2.
The model number on your VoIP
cable modem may be different
than in the illustrations and
screen images in this guide.
SBV5121
SURFboard
Cable Modem
PO
WER
DS
US
ON
LI
NE
LINK
TEL 1
TEL 2
ST
ANDBY
1
2
3
4
5
6
7
8
9