DOCSIS 3.1 Cable Modem


Perfect for premium tier service plans over 1 Gbps, the EN2251-RES cable modem supports DOCSIS 3.1 to deliver the ultimate broadband experience for your residential and business customers. Users will enjoy smoother streaming, faster online gaming, better video conferencing and more. Equipped with a 2.5 Gbps port, this powerful modem enables cable operators to take full advantage of DOCSIS 3.1’s multi-Gigabit speeds.
Only sold through Service Providers
DOCSIS 3.1 Cable Modem from Hitron - EN2251-RES

Multi-Gigabit Speeds with DOCSIS 3.1

DOCSIS 3.1 takes Internet speeds to a new level, increasing the capacity of HFC networks by more than 50 percent and reducing latency. DOCSIS 3.1 supports download speeds up to 10 times faster than DOCSIS 3.0, so you can offer premium tier multi-Gigabit service plans using your existing HFC infrastructure. And your customers will be able to connect more devices, enjoy richer digital experiences and get the fastest Internet speeds available for all their needs.


Supports DOCSIS 3.0 Networks too!

Installation of the EN2251-RES is quick, straight-forward, and can be carried out by the end-user. Once connected, the built-in TFTP client automatically gets the IP address and configuration data from the network server without human intervention. A browser-based utility allows convenient viewing of key network statistics and SNMP support provides total remote control over the device.


2.5 Gigabit Port

Equipped with a 2.5 Gbps Ethernet port, the powerful EN2251-RES can support service plans over 1 Gbps.


Integrated Telephony Support with Optional Backup Battery

The EN2251-RES can meet your subscriber’s voice needs too. With two integrated HD telephony ports, it’s an ideal choice for home office applications. An optional backup battery provides uninterruptable service during a commercial power outage.


Easy to Setup and Manage

Installation is a snap for your end users. The built-in TFTP client automatically gets the IP address and configuration data from the network server. That means a few simple connections is all it takes to get up and running. And SNMP support provides total remote control over the device for fast and effective troubleshooting.

Key Specifications

  • DOCSIS 3.1 2×2 multi-carrier OFDM
  • DOCSIS 3.0 32×8 channel bonding
  • Fixed 5-85 MHz upstream
  • Supports Business Services over DOCSIS
  • Extensive operator control via configuration file and SNMP
  • 2 HD voice ports with SIP or MGCP support
  • Built-in MoCA immunity filter
  • 2.5 Gbps LAN port
  • Supports IPv4 and IPv6
  • Optional external battery available

Other Products to Consider

Modem Type
DOCSIS 3.1 (32x8)
DOCSIS 3.1 (32x8)
DOCSIS 3.1 (32x8)
DOCSIS 3.1 (32x8)
Fixed 5-85MHz
Switchable 5-42/5-85MHz
Switchable 5-85/5-204MHz, Extended Downstream up to 1.2 GHz
Switchable 5-85/5-204MHz, Extended Downstream up to 1.2 GHz
Wired LAN
2x GigE
1x 2.5GigE
1x 2.5GigE
1x 2.5GigE
2 Voice Ports + External Battery


*DOCSIS 3.1 is a CableLabs standard for high speed Internet access that defines support for up to 10 Gbps downstream and 1 Gbps upstream. Actual cable operator network speeds will vary and will be less than the calculated maximum possible speeds. Actual upload and download speeds are affected by several factors including, but not limited to: the capacity of your cable operator’s network, the services offered by your cable operator, cable and Internet network traffic, your computer equipment etc.

Modem not working?

Easily troubleshoot your Internet connection using this simple coax testing tool.

Instantly test your coax wiring and outlets for the presence of valid Internet signals from your Cable Internet provider.

A cable modem ready for your multi-Gigabit service plans

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