Arris CM3500 – DOCSIS Cable Converter (for Fixed Internet Cable)
The Arris CM3500 is a cable modem that converts a DOCSIS signal from a coaxial cable into a standard Ethernet (LAN) connection. Thanks to DOCSIS 3.1 technology and a 2.5 Gbps LAN port, it supports internet speeds of up to 2 Gbps. A standard Ethernet router can be connected to the converter.
Technical Specifications:
- 1x F-type coaxial connector
- 1x 2.5 Gbps Ethernet LAN port
- DOCSIS 3.1 certified
- Dimensions: 140 x 144 x 50 mm
- Weight: 450 g
Downloads:
Manufacturer's address:
Vantiva Technologies, 10 boulevard de Grenelle 75015 Paris – France, gpsr@vantiva.com
You might find it useful:
What's included in the box?
- DOCSIS 3.1 cable modem
- Power adapter
- Ethernet cable
- Quick installation guide
What do the LEDs on the converter mean?
POWER
- Solid green – Powered on and ready
- Flashing green – System error
- Off – Powered off
DOWNSTREAM
- Solid green – Data reception is working
- Flashing green – System update in progress
- Off – Powered off
UPSTREAM
- Solid green – Data transmission is working
- Flashing green – System update in progress
- Off – Powered off
ONLINE
- Solid green – Internet connection is working
- Off – Powered off
What affects if I can get 2Gbps connection speed on my device?
Recommended equipment for optimal speed:
- Quality data cable
- A network card supporting speeds of 2 Gbps or higher
- An up‑to‑date operating system and web browser (software)
- When you order the service, we recommend that you use a professional installation from our technician, who will not only plug in the new modem, but also set up the connection for you on your device and make sure that you have everything set up and ready to connect at the highest possible speed.
- Connection speed is affected by other applications running on the computer, antivirus programs and firewalls. Even though our connection will run at full speed, your computer may occasionally "lag" and only use a portion of the available speed.
- The main advantage of 2gigabit fixed internet is the high capacity of your connection. You can make full use of the connection on various devices (laptops, mobile phones, game consoles, smart TVs, etc.), which will practically not be affected due to the high speed. So you don't have to worry about your smart TV, etc., stopping working when you start a video conference on your laptop.
- If you connect via Wi‑Fi, the connection speed is most affected by Wi‑Fi interference (such as obstacles along the signal path or other wireless networks in your area) and by the capabilities of your device, which may not support the latest Wi‑Fi standards. For this reason, we do not recommend measuring internet speed over Wi‑Fi, as the results may be inaccurate. To achieve the highest speeds, support for Wi‑Fi 6 or later is required. The device should be located close to the modem and have a clear line of sight to it. Due to the limitations of wireless networks, the measured speed may still be lower than when using a wired Ethernet connection.
How do I access the administration interface and change the login details?
The administration interface is disabled and cannot be accessed. The converter is preconfigured for operation on the Vodafone network and does not require any additional setup.
The converter is behaving unusually (making noise, overheating, etc.)
Try restarting the converter
Let's start with the simplest solution. Turn the converter off using the ON/OFF button and disconnect it from the power supply. Then plug it into a different power socket, wait a moment, and turn it back on using the ON/OFF button.
Check that all cables are connected correctly
If the converter does not power on, check all cable connections. If the POWER LED remains off, try plugging the converter into another power socket that is known to work with other devices.
Restore the converter to factory settings
To reset the converter, press and hold the RESET button for more than 5 seconds. The button is located on the rear of the device.
Contact us if the issue persists
If the converter cannot be switched on, emits a high-pitched noise, or the POWER LED remains solid or flashing red, please contact us and we will do our best to resolve the issue as quickly as possible.
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