DCM-254G

DOCSIS 3.0 Cable Modem
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Tanımlama

The DCM-254G is a 24x8 DOCSIS®3.0 wireless eMTA. It’s a high-performance home gateway that combines a cable modem, 4 Giga-Ethernet LAN ports, 2T2R 802.11n and 3T3R 802.11ac high power wireless access point. The DCM-254G is also backwards compatible with Wi-Fi standards. 2 FXS VoIP ports in a single device providing a cost-effective voice and internet solution for both home and small office. It provides a fast connection to the internet by incorporating 24 bonded downstream channels along with 8 bonded upstream channels. These bonded channels deliver downstream data rates in excess of 1000Mbps and upstream data rates in excess of 240Mbps. The DCM-254G is a Dual Stack Lite (DS-Lite) supported. DS-Lite allows service providers to migrate to an IPv6 access network without changing end-user software. The device that accesses the Internet remains the same, thus allowing IPv4 users to continue accessing IPv4 internet content with minimum disruption to their home networks, while enabling IPv6 users to access IPv6 content.

High-Speed Broadband Internet Access

Powered by the DOCSIS 3.0 channel bonding technology, the DCM-254G DOCSIS 3.0 Cable Modem provides download speeds up to 8 times faster than DOCSIS 2.0, making it easier to enjoy your favorite Internet applications, such as file sharing, audio and video streaming, Internet TV and website browsing.

Get Connected and Stay Connected
The DCM-254G Cable Modem makes your broadband connection more efficient by cleaning
network congestion, resulting in a boost in download speeds, increased bandwidth and
enhanced performance. The DCM-254G Cable Modem is DOCSIS CableLabs Certified®
PacketCable 1.5 support, which ensures compatibility with all major cable companies. The
DCM-254G is also backwards compatible with DOCSIS 2.0/1.1/1.0 standards.


Integrated Home Services
DOCSIS 3.0 compliance provides speeds fast enough to support multiple Internet-based
services in the home, such as digital television and video on demand.

 

 

 

Genel Özellikler


Fiziksel Özellikler

Device Interfaces

  • 4x RJ45 10/100/1000 BASE-T Ethernet Port (Auto MDI/MDIX)
  • RF interface (75ohm F-type) to bi-directional Hybrid Fiber Coaxial (HFC)
  • 2 x FXS ports for VOIP
  • Reset button
  • DC power jack
  • USB2.0
  • WPS/WLAN button

LEDs

  • Power
  • WPS
  • Ds/Us
  • Tel 1
  • Online
  • Tel 2
  • 2.4Ghz /5 Ghz

Receiver Specifications

  • Downstream modulation QAM 64/256
  • Capture windows 24 QAM channels maximum
  • Downstream frequency range 108 - 1002 MHz
  • Channel bandwidth 8MHz QAM channels
  • Max. downstream data range 1000Mbps
  • Full Band Capture Support

Transmitter Specifications

  • Upstream modulation QPSK 8,16,32,64 and 128 QAM
  • Number of upstream Channels 8
  • Upstream frequency range 5 ~85MHz
  • Output impedance 75 Ohm F-type
  • Max. upstream data range 240 Mbps (theoretical),
  • Channel bandwidth 200, 400 and 800 kHz, 1.6, 3.2 (32.78 Mbps x 8 channels) and 6.4 MHz
  • TDMA, ATDMA channel access support

Wireless Specifications

  • 2.4GHz 802.11n with 2x2 MIMO
  • 5GHz 802.11ac with 3x3 MIMO
  • Frequency Range 2.400 - 2.484 GHz
  • Frequency Range: 5.15 - 5.85 GHz
  • Data Rate 300Mbps-HT20, 2.4G in 20MHz mode
  • Data Rate: 1300Mbps-HT80, 5G in 20/40/80MHz mode

SSIDs    

  • Up to 8(configurable)

 QoS     

  • WMM/WMM-PS
  • WPS (Wi-Fi Protected Setup) PBC, PIN

 

Wireless Security           

  • WEP-64/WEP-128, WPA-PSK/WPA2-PSK(TKIP/AES)
  • Beamforming Support

 

Antennas

  • 3dbi internal x 3

 

Management

  • Web based Configuration
  • TR-069 client
  • CMTS configure /FTP/TFTP Firmware upgrade
  • IPv4/IPv6 Dual Stack (RFC 4213)
  • SNMP v2/v3
  • IPv6 Customer Edge Routers (RFC 6204)
  • SNMP management (MIB)
  • DHCP,DHCPv6
  • Management Access Control for LAN/WAN sides
  • Telnet SSH management

 

Voice Functions

  • 2 FXS ports for VoIP
  • Support SIP/NCS, DQOS
  • G.168 Echo cancellation
  • Security:SIP/SIP-TLS
  • Caller ID (DTMF/FSK)
  • Call feature :Signal tone,Ring stream,Caller number
  • T30 & T38 fax relay display and restriction,call forwards
  • Codecs G.711,G.723,G.726,G.729a,G.722 (no-condition,no-answer,busy,not-online)

 

Security

  • Prevent port scanning
  • Application filtering
  • Denial of Service (DOS)
  • URL filter
  • LAND attack Baseline Privacy Plus Interface(BPI+) security mechanism
  • IP/ MAC filtering

 

EMC and Safety

  • Regulatory Compliance By demand

 

Safety Regulations

  • CB

 

Green Standard              

  • RoHS

 

 

Dimensions

  • 220 x 210 x 45mm

 

Surge Protection

  • 2.5KV

Power Adapter Input:

  • DC 100-240 V AC / 50/60 Hz, < 28 W

Output:

  • 12 V / 2.5 A DC (efficiency gain 5)

Temperature

  • Operating: 0 oC - 40 oC
  • Storage: -40 oC – 70 oC

 

Humidity

  • Operating: 10% to 90% non-condensing

Certifications

  • FCC
  • CableLabs DOCSIS 3.0 CW70
  • CE
  • Time Warner Cable
  • cUL
  • Comcast

 

Specifications are subject to change without notice. D-Link is a registered trademark of D-Link
Corporation and its overseas subsidiaries. All other trademarks belong to their respective owners.
©2017 D-Link Corporation. All rights reserved. E&OE

 

 

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