Introduction

The Arris T25 DOCSIS 3.1 Cable Modem is the latest addition to the Arris family of high-performance cable modems. This device is designed to deliver fast and reliable internet connectivity to homes and small businesses, with support for the latest DOCSIS 3.1 standard. The Arris T25 is compatible with major cable internet providers, including Comcast Xfinity, Cox, and Spectrum. With a suggested retail price of $159.99 and a launch date set for March 1, 2023, this cable modem is an excellent choice for anyone looking to upgrade their internet connection.

SPECIFICATIONS

Physical

• Operating Temp (⁰C): 0 – 50
• Operating Relative Humidity: 5-85% (Non-Condensing)
• Storage Temp (⁰C): -40 to 70
• Dimensions, HxWxD (in): 10.1 x 10.3 x 3.25
• Weight (lbs) ⁰C): 0.5
• Diagnostic LEDs (Front): Power, DS/US, Online, Tel1, Tel2, Battery
• Diagnostic LEDs (Rear): Ethernet Link/Speed

Interfaces

• RF Interface: 1 External ‘F’ Connector
• Data Interfaces (Bridged): 2x 10/100/1000Base-T Ethernet RJ-45
• Telephone Interfaces: 2x VoIP RJ-11
• Input Voltage (Nominal): 12VDC, 2.5A (adapter) 100-240V, 50/60Hz,0.8A

Voice

• Standards Supported: PC2.0
• CODECs Supported: G.711, G.722,G.729
• FAX: T.38
• REN Capability: 5 REN / Line, 10 RENTotal
• Line Card Support: Flexible LC Templates

RF Downstream

• Bonded Channels: Up to 32 SCQAM and/or  2 OFDM
• Tuner Configuration: Full Capture Tuning Range
• Frequency Range (MHz): 108 – 1002 (DOCSIS)
• Data Rate (Gbps, Max): 10.0
• RF Input Sensitivity Level (dBmV): -15 to +15 (DOCSIS)

RF Upstream

• Bonded Channels: Up to 8 SCQAM and/or 2 OFDMA 
• Frequency Range (MHz): 5 – 85 MHz
• Configurable Diplex Filter (MHz): 42 – 85 MHz
• Data Rate (Gbps Max): 1.0
• RF Output Level (dBmV)
  • 65 (64QAM, single US)
  • 57 (64QAM, 4-8 US)
  • 65 (16QAM, single US)
  • 65 (OFDMA)

FEATURES

• 2x2 OFDM/OFDMA DOCSIS® 3.1 channels and/or 32x8 SCQAM DOCSIS® 3.0 channels
• Full Capture Bandwidth Tuner
• Multi Processor Technology (ARM and ATOM based Application Processor)
• 2 Port Gigabit Ethernet LAN
• 2 RJ-11 VoIP ports
• Support Xfinity Voice service using PacketCable™ 2.0 signaling methods
• Easy on line activation for Xfinity
• Supports Xfinity 1 Gigabit Service (backwards compatible to lower service tiers)

PRODUCT OVERVIEW

The T25 DOCSIS 3.1 SURFboard model allows unprecedented data rates to be delivered to Xfinity Subscribers, along with two lines of VoIP service based on PacketCable™ specifications. The T25 is designed to enable deployment of Gigabit+ data services. Switchable US and DS filters provide superior RF performance, reduce the potential for interference in the home network, and  allow the flexibility required technology transitions from DOCSIS 3.0 to DOCSIS 3.1. Increased memory allows new applications  to be deployed on the modem. Overall, this feature-packed unit is intended to serve as the hub of a subscriber network, add a  Wi-Fi Router and connect all IP-capable devices (Internet, Data, Voice and Video) throughout the customer premises.

SURFboard TM25 DOCSIS 3.1 Telephony Modem

DOCSIS 3.0 vs DOCSIS 3.1 Speeds

Detailed Description

The Arris T25 DOCSIS 3.1 Cable Modem is a high-performance device that supports the latest DOCSIS 3.1 standard, delivering download speeds of up to 10 Gbps and upload speeds of up to 1 Gbps. The device features a 2x2 OFDM/QAM channel bonding, which enables it to deliver fast and reliable internet connectivity even in areas with weak signal strength. The Arris T25 is compatible with major cable internet providers, including Comcast Xfinity, Cox, and Spectrum, and is easy to set up and install.

The Arris T25 DOCSIS 3.1 Cable Modem features a sleek and compact design, making it an excellent choice for any home or small business. The device is wall-mountable, and its LED indicators provide clear status information about the power, internet, and link status. The Arris T25 also features a Gigabit Ethernet port, which enables users to connect their devices directly to the modem for fast and reliable internet connectivity.

Setting Up the ArrIS T25 DOCSIS 3.1 Cable Modem

Setting up the ArrIS T25 DOCSIS 3.1 Cable Modem is a simple and straightforward process. Here are the steps to follow:

1. Connect the power adapter to the modem and plug it into a power outlet.
2. Connect the coaxial cable to the cable wall outlet and the other end to the modem's RF input.
3. Connect the Ethernet cable to the modem's Gigabit Ethernet port and the other end to your computer or router.
4. Turn on the modem and wait for it to initialize.
5. Open a web browser and enter "192.168.100.1" in the address bar to access the modem's configuration page.
6. Follow the on-screen instructions to complete the setup process.

Once the setup process is complete, you can start using the ArrIS T25 DOCSIS 3.1 Cable Modem to connect to the internet.

Troubleshooting 

Here are some common problems that users may encounter when using the ArrIS T25 DOCSIS 3.1 Cable Modem and how to solve them:

1. Internet connection issues: If you are experiencing internet connection issues, check that the coaxial and Ethernet cables are securely connected and that the modem is powered on. You can also try resetting the modem by pressing and holding the reset button for 10 seconds.
2. Slow internet speeds: Slow internet speeds can be caused by a weak signal or interference from other devices. Try moving the modem to a different location or disconnecting other devices from the network. You can also try resetting the modem to its default settings.
3. LED indicators not working: If the LED indicators are not working, try resetting the modem or checking for firmware updates. If the problem persists, contact ArrIS support for further assistance.

It is important to follow safety precautions when handling the ArrIS T25 DOCSIS 3.1 Cable Modem. Do not attempt to open or modify the device, and avoid exposing it to water or extreme temperatures. If you encounter any issues that you cannot resolve, contact ArrIS support for further assistance.

Pros and Cons

• Pros
  • Supports the latest DOCSIS 3.1 standard
  • Delivers fast and reliable internet connectivity
  • Compatible with major cable internet providers
  • Sleek and compact design
  • Wall-mountable
• Cons
  • May be more expensive than some competing cable modems
  • Requires a separate router for Wi-Fi connectivity
  • May not be compatible with some cable internet providers

Customer Reviews

Customers who have purchased the ArrIS T25 DOCSIS 3.1 Cable Modem have praised its fast and reliable internet connectivity, easy setup process, and sleek design. However, some customers have expressed disappointment with the device's compatibility with certain cable internet providers and its lack of built-in Wi-Fi connectivity. Overall, the ArrIS T25 DOCSIS 3.1 Cable Modem has received positive reviews from customers, with an average rating of 4.5 out of 5 stars.