Introduction
Installation Troubleshooting Glossary License
Top and Front Panel
The model number on your digital voice modem may be different than in the illustrations and screen images in this guide.
The lights provide information about power, communications, and errors:
1
2
3 
4 
5 
6 7 8
Key | Light | Flashing | On |
1 | Power | Startup diagnostics in progress. | digital voice modem powered on. |
2DS (downstream) Scanning for a receive (downstream) Downstream channel connected. channel connection.
3 | US (upstream) | Scanning for a send (upstream) | Upstream channel connected. |
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| channel connection. |
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4 | Online | Scanning for a network connection. | Startup process completed. |
5 | Link | Transmitting or receiving data. | A device, such as a computer or hub, is connected to |
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| the USB or Ethernet connectors on the back panel. |
6 | Tel 1 | Connected and activated, | Connected and activated, the telephone is |
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| telephone is | (not in use). |
7 | Tel 2 | Connected and activated, | Connected and activated, the telephone is |
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| telephone is | (not in use). |
8 | Battery | AC power not present. | Normal condition indicating that AC power present and |
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| the battery is in good condition. |
During normal operation, the Power, DS, US, and Online lights are on and the Link light flashes when the digital voice modem is transferring data.
SBV5222 SURFboard® Digital Voice Modem | 3 |