1. Produktet er slutview
The Cisco DPC3008 is a high-performance DOCSIS 3.0 cable modem designed to provide high-speed broadband internet access. It is compatible with various internet service providers, including Xfinity/Comcast, Spectrum, AT&T, TWC, and Cox. This modem supports advanced channel bonding technology, allowing for faster download and upload speeds.

Figur 1: Foran-venstre view of the Cisco DPC3008 Cable Modem.
2. Pakkens indhold
Sørg for, at alle varer er til stede i din pakke:
- Cisco DPC3008 Cable Modem
- Ethernet kabel
- Strømadapter
- Hurtigstartguide (hvis inkluderet)
3. Hardwarefunktioner
3.1. Front Panel LEDs
The front panel of the DPC3008 features several LED indicators that provide status information about the modem's operation.

Figure 2: Front panel LED indicators with corresponding numbers.
| Ingen. | LED navn | Status | Beskrivelse |
|---|---|---|---|
| 1 | MAGT | Solid grøn | Modemet er tændt. |
| 2 | DS (Nedstrøms) | Solid grøn | Modem is connected to the downstream channel. |
| 3 | US (Opstrøms) | Solid grøn | Modem is connected to the upstream channel. |
| 4 | ONLINE | Solid grøn | Modem er online og operationelt. |
| 5 | FORBINDELSE | Solid grøn | Ethernet-forbindelsen er etableret. |
3.2. Rear Panel Ports and Buttons
The rear panel provides all necessary connection ports for the modem.

Figure 3: Rear panel showing power, Ethernet, USB, Reset, and Cable ports.
- Strømport: Tilsluttes strømadapteren.
- Ethernet-port (LAN): Tilsluttes din computer eller router med et Ethernet-kabel.
- USB-port: (Functionality may vary, typically not used for standard operation).
- Nulstil knap: Used to reset the modem to factory default settings. Use a pointed object to press.
- Cable Port (Coaxial): Connects to the coaxial cable from your internet service provider.
4. Opsætning og installation
Follow these steps to set up your Cisco DPC3008 cable modem:
- Vælg en placering: Place the modem in a central location, away from direct sunlight and heat sources, with good ventilation. Ensure it is near a coaxial cable outlet and a power outlet.
- Tilslut koaksialkabel: Tilslut den ene ende af koaksialkablet til kabelstikket i væggen og den anden ende til Kabel port on the rear of the modem. Tighten the connectors hand-tight.
- Tilslut Ethernet-kabel: Tilslut den ene ende af Ethernet-kablet til Ethernet port on the modem and the other end to the Ethernet port on your computer or wireless router.
- Tilslut strømadapter: Tilslut strømadapteren til Magt port on the modem and then plug the adapter into an electrical outlet.
- Tænd: The modem will automatically power on. Wait for the front panel LEDs (POWER, DS, US, ONLINE, LINK) to become solid green. This process may take several minutes.
- Aktivér tjeneste: Once the ONLINE LED is solid green, open a web browser on your connected computer. You may be redirected to your Internet Service Provider's (ISP) activation page. Follow the on-screen instructions. If not redirected, you may need to call your ISP to activate the modem. Provide them with the modem's MAC address and serial number, usually found on a sticker on the bottom or back of the modem.
Vigtig bemærkning:
- Ensure your cable account is active and supports DOCSIS 3.0, 2.0, or 1.1.
- This modem will not work with DSL service.
5. Betjening af modemet
The Cisco DPC3008 operates automatically once successfully installed and activated. It provides a direct internet connection to your connected device (computer or router).
5.1. Connecting to a Router
For multiple devices or wireless connectivity, connect a wireless router to the modem's Ethernet port. Ensure the router's WAN/Internet port is connected to the modem.
5.2. Power Cycling
If you experience connectivity issues, a simple power cycle can often resolve them:
- Unplug the power adapter from the modem.
- Vent i mindst 30 sekunder.
- Plug the power adapter back into the modem.
- Wait for the modem to fully restart and for the ONLINE LED to become solid green.
6. Vedligeholdelse
The Cisco DPC3008 requires minimal maintenance. Follow these guidelines to ensure optimal performance:
- Hold ventileret: Ensure the modem's ventilation slots are not blocked. Proper airflow prevents overheating.
- Rengør forsigtigt: Use a soft, dry cloth to clean the exterior of the modem. Do not use liquid cleaners or aerosols.
- Beskyt mod elementer: Keep the modem away from water, excessive humidity, and extreme temperatures.
- Sikre forbindelser: Periodically check that all cables (coaxial, Ethernet, power) are securely connected.
7. Fejlfinding
If you encounter issues with your Cisco DPC3008, refer to the following troubleshooting tips:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm (POWER-LED slukket) | Strømadapteren er ikke tilsluttet, eller der er en defekt stikkontakt. | Sørg for, at strømadapteren er korrekt tilsluttet modemmet og en fungerende stikkontakt. Prøv en anden stikkontakt. |
| DS/US LEDs Flashing or Off | No signal from ISP or poor coaxial connection. | Check coaxial cable connections at the modem and wall outlet. Ensure they are hand-tight. Contact your ISP if the issue persists. |
| ONLINE LED Flashing or Off | Modem not registered with ISP or service issue. | Ensure DS and US LEDs are solid. Power cycle the modem. If still flashing, contact your ISP for activation or to report a service outage. |
| No Internet Access (LINK LED Off/Flashing) | Ethernet cable issue or connected device problem. | Check Ethernet cable connection between modem and computer/router. Try a different Ethernet cable. Ensure your computer/router is configured correctly. |
| Langsom internethastighed | Network congestion, ISP issue, or modem overheating. | Power cycle the modem. Ensure proper ventilation. Contact your ISP to check your service speed and line quality. |
If these steps do not resolve your issue, please contact your Internet Service Provider for further assistance.
8. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | DPC3008 (FBA_DPC3008-CC) |
| DOCSIS standarder | DOCSIS 1.0, 1.1, 2.0, 3.0 Certified |
| Ethernet-standarder | 802.3, 802.3u (10/100/1000BASE-T) |
| Downstream-kanaler | 8 bonded channels (up to 340 Mbps / 440 Mbps) |
| Opstrømskanaler | 4 bonded channels (up to 120 Mbps) |
| Nedstrøms frekvensområde | 88 til 1002 MHz eller 54 til 1002 MHz |
| Opstrøms frekvensområde | 5 to 42 MHz, 5 to 65 MHz, or 5 to 85 MHz |
| Havne | Power, Ethernet (RJ-45), Cable (F-type female 75 ohm) |
| Knapper | Nulstil |
| LED-indikatorer | Power, DS, US, Online, Link |
| Dimensioner (H x B x D) | 5.92 x 4.80 x 1.15 tommer |
| Vægt | 8.4 oz |
| Minimum systemkrav | Existing cable account, DOCSIS 3.0/2.0/1.1 compatible ISP |
9. Legal Disclaimer and Important Information
Certain units may not be available for activation with specific Internet Service Providers (ISPs). If the ISP was the previous owner of the unit, the customer’s ISP must have deactivated the Serial Number for the unit to be activated. Please check with your Internet Service Provider to ensure activation is possible before purchase or installation.
10. Kundesupport
For technical support or further assistance, please contact your Internet Service Provider (ISP). They are responsible for supporting the cable modem once it is activated on their network.
For general product information or if you have questions before activation, you may visit the Cisco-butik på Amazon.





