Cisco DPC2425 User manual

Data Sheet
© 2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 1 of 10
Cisco Model DPC2425 DOCSIS 2.0 Wireless Residential
Gateway with Embedded Digital Voice Adapter
The Cisco® Model DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter (DPC2425) is a high-performance home gateway that combines a
cable modem, two-line digital voice adapter, router and wireless access point in a single
device providing a cost-effective voice and networking solution for both the home and
small office.
The DPC2425 has been designed to meet PacketCable™ 1.5 and DOCSIS® 2.0 specifications. In
addition, the DPC2425 is fully backward compatible for use on both DOCSIS 1.1 and DOCSIS 1.0
networks.
Figure 1. Model DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded Digital Voice Adapter
(image may vary from actual product and specification)
Designed for the active digital home or office, the DPC2425 integrated router features a Dynamic
Host Configuration Protocol (DHCP) server, Network Address and Port Translation (NAT/NAPT)
and a Stateful Packet Inspection (SPI) firewall. These features allow the user to share a single
high-speed public Internet connection as well as share files and folders between devices within the
home network by attaching multiple wired and wireless devices in the user’s home or office to the
wireless residential gateway.

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Consumer-friendly features like Wi-Fi Protected Setup (WPS) and user-configured Parental Control
can protect the home network from unwelcome intruders and family members from access to
undesirable websites.
Features
● High-performance broadband Internet connectivity to energize your online experience
● Compliant with DOCSIS 2.0, 1.1, and 1.0 standards along with PacketCable specifications
to deliver high-end performance and reliability
● Plug-and-Play operation for easy setup and installation, including color-coded data ports
and data cables compliant with the TR-068 specifications
● 802.11g Wireless Access Point with 4 service set identifiers (SSIDs)
● Wireless MultiMedia (WMM) features including Wi-Fi Protected Setup (WPS), including a
push button switch to activate WPS for simplified and secure wireless setup
● Allows the user to attach multiple devices to the wireless home gateway for high-speed
wired and wireless networking and sharing of files
● Four 10/100BASE-T auto-sensing with auto-MDIX Ethernet ports to provide connectivity for
high-speed data services or to other Internet devices
● Two-line embedded digital voice adapter for wired telephony service
● Two RJ-11 telephony ports for connecting to in-home wiring or directly to conventional
telephones or fax machines
● Advanced firewall technology deters hackers and protects the home network from
unauthorized access
● User-configurable Parental Control blocks access to undesirable Internet sites
● Dual antenna design - one internal and one detachable external
● Attractive, compact design that allows for vertical, horizontal, or wall-mounted placement
● DOCSIS-5 compliant LED labeling and behavior provides a user- and technician-friendly
method to check operational status and act as a troubleshooting tool
● Allows automatic software upgrades by the user’s service provider

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Figure 2. Model DPC2425 Front Panel (image may vary from actual product and specification)
Table 1. Front Panel Features
Feature
Description
Indicators
Power, DS, US, Online, Ethernet, Wireless Link, Wireless Setup, TEL1, TEL2
Color
Black housing, black lens, silver text
Branding
Cisco logo and model number
Figure 3. Model DPC2425 Back Panel (image may vary from actual product and specification)
Table 2. Back Panel Features
Feature
Description
POWER
Connector Color: Black
Connects the wireless home gateway to the DC output of the AC power adapter
Power Switch
(not shown)
Turn on and off device (power switch provided on all products carrying the CE mark)
TELEPHONE 1 and 2
Color: Gray
RJ-11 telephone ports connect to home telephone wiring and to conventional telephones or fax
machines
ETHERNET (1 – 4)
Connector Color: Yellow
Four RJ-45 Ethernet ports connect to the Ethernet ports on the user’s PC or home network
REBOOT EMTA
Power cycles the DPC2425
WIRELESS SETUP
Activates WPS to connect wireless devices to the home network
CABLE
Connector Color: White
F-connector connects to an active cable signal from the service provider
ANTENNA (not shown)
Provides a communication connection for the built-in WAP

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Product Specifications
Table 3. Product Specifications
Specification
Value
Voice Specifications
Call Signaling Protocol
MGCP/NCS including configurable IPsec encryption
Configurable to support RFC2833 event signaling
Supports Bell103 detection: Improves alarm panel and Point of Sale (POS) interoperability by
optimizing DSP for Bell103 protocol
Software upgradeable to support Session Initiation Protocol (SIP)
The following SIP standards are supported
● RFC 2617 HTTP Authentication: Basic and Digest Access Authentication
● RFC 2976 The SIP INFO Method
● RFC 3261 SIP: Session Initiation Protocol
● RFC 3262 Reliability of Provisional Responses in Session Initiation Protocol (SIP)
● RFC 3263 Session Initiation Protocol (SIP): Locating SIP Servers
● RFC 3264 An Offer/Answer Model with Session Description Protocol (SDP)
● RFC 3265 Session Initiation Protocol (SIP)-Specific Event Notification
● RFC 3420 Internet Media Type message/sipfrag
● RFC 3428 Session Initiation Protocol (SIP) Extension for Instant Messaging
● RFC 3515 The Session Initiation Protocol (SIP) Refer Method
● RFC 3842 A Message Summary and Message Waiting Indication Event
Package for the Session Initiation Protocol (SIP)
● RFC 3892 The Session Initiation Protocol (SIP) Referred-By Mechanism
● RFC 3903 Session Initiation Protocol (SIP) Extension for Event State Publication
● Draft-ietf-mmusic-sdp-new-24 SDP: Session Description Protocol (Replacement for RFC 2327)
● Draft-ietf-sipping-cc-transfer-01 Session Initiation Protocol Call Control – Transfer
● Draft-ietf-sip-session-timer-08 The SIP Session Timer
● Draft-ietf-sipping-realtimefax-01 SIP Support for Real-time Fax: Call Flow
Examples And Best Current Practices
● Draft-ietf-mmusic-sdescription-09 Session Description Protocol Security
● Descriptions for Media Streams
● Draft-ietf-sip-replaces-02 The Session Initiation Protocol (SIP) "Replaces" Header
Provisioning Modes
Full PacketCable secure provisioning
Kerberos support with NVRAM ticket caching
Configurable PacketCable-lite (MTA config file provisioning without security)
Configurable for non-PacketCable (MTA configuration using DOCSIS config file)
CODECs
Standard: G.711, T.38 Fax Relay, iLBC and BV16
Software upgradeable to support other CODEC combinations including:
● G.711 and G.728
● G.711 and G.729
● G.711 and G.729 a/e
● G.711 and BV16 and BV32 (High fidelity – near CD quality)
● G.711 and G.723
● G.711 and G.726
CODEC Packetization
Intervals
10, 20, and 30 mS
CODEC Synchronization
CODEC synchronization to UGS time clock allows slip-free end-to-end sync to PSTN clock
(minimizes frame slips that can cause Fax/Analog Modem call failures)
CODEC Encryption
Configurable to support AES-128 encryption or no encryption modes
Hearing Impaired Services
Support
TDD support including detection of V.18 including Annex A
Fax and Analog Modem
support
DSP based Modem/Fax Tone detection and support for Voice Band Data Mode with auto-
CODEC negotiation and auto-control of echo canceller, jitter buffer, and VAD
Jitter Buffer Support
Adaptive dynamically controlled
Latency Control
Configurable min / max jitter buffer size

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Specification
Value
Audio Gain Levels
Independently configurable Tx and Rx audio gains
Silence Suppression
Configurable VAD with comfort noise generation
Packet Loss Concealment
ANSI T1.521-1999
Call Connection Quality
Monitoring
RTCP, RFC1889, RFC1890, SNMP MIB for last call quality statistics
Dialing Modes
DTMF and configurable pulse dial support
DTMF Relay
RFC2833 including fast (40mS) DTMF Relay for alarm system signaling compatibility
Layer 2 Quality of Service
● Full PacketCable secure DQOS with GateID including UGS and UGS/AD
● DQOS Lite support including UGS and UGS/AD
Layer 3 Quality of Service
Configurable DiffServe/TOS support for Signaling, RTP, and RTCP flows
Payload Header
Suppression (PHS)
● Supported for RTP and RTCP packet flows to reduce per-call network bandwidth
● Advanced support for Dynamic Payload Header Suppression using Propane Technology
Management
SNMPv3, SNMPv2, SNMPv1, Telnet with configurable user ID and password, internal log, and
external Syslog support
Echo Cancellation
G.168 with extended echo tail support
Call Feature Support
● Caller ID
● Call Waiting with Caller ID
● Cancel Call Waiting
● Call Conferencing (3-way calls)
● Configurable hook flash support
● Distinctive Ringing (Configurable for up to 11 ring patterns per phone line)
● Ring Splash
● Stutter Dial Tone
● Off hook warning tone
● Open Switch Interval support to enhance answering machine compatibility
● Configurable star codes
● Euro/US hook-flash type
● Call transfer
● Message Waiting Indicator
● Warm Line
● Call Forwarding Unconditional
● Call Forwarding on Busy
● Call Forwarding No Answer
● Call Return
● Redial Call
● Automatic redial
Other call features available with compliant CMS or gateway
Telephone Ring Loading
Full 5 REN support on each phone line (10 REN total)
Ring Signal
Configurable balanced ring with configurable DC offset
Max Phone Line Distance
Supports up to 1000 ft of AWG26 wire (0.4 mm) on each phone line. Supports operation with
typical in-home telephone wiring
Country-Specific
Telephone Parameters
Supported
United States, Japan, United Kingdom, Germany, France, Belgium, Netherlands, Finland, Italy,
Switzerland, Sweden, Denmark, Brazil, ETSI 101 909-18
RF Downstream
Frequency Range
88 to 930 MHz
Demodulation
64 or 256 QAM
Maximum Data Rate
30 Mbps for 64 QAM
43 Mbps for 256 QAM
Bandwidth
6 MHz
Operating Level Range
-15 to +15 dBmV
Input Impedance
75 ohms

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Specification
Value
RF Upstream
Frequency Range
5 to 42 MHz
Modulation
QPSK
8 QAM
16 QAM
64 QAM
128 QAM TCM
Maximum Data Rate
5.12 Mbps for QPSK
10.2 Mbps for 16 QAM
30.0 Mbps for A-TDMA and SCDMA
Bandwidth
200 kHz to 6.4 MHz
Operating Level Range
(all values +/- 0.5 dBµV )
TDMA
QPSK +8 to +58 dBmV
8QAM +8 to +55 dBmV
16QAM +8 to +55 dBmV
32QAM +8 to +54 dBmV
64QAM +8 to +54 dBmV
SCDMA
QPSK +8 to +53 dBmV
8QAM +8 to +53 dBmV
16QAM +8 to +53 dBmV
32QAM +8 to +53 dBmV
64QAM +8 to +53 dBmV
128QAM +8 to +53 dBmV
Output Impedance
75 ohms
Wireless Access Point
Frequency Range
2.412~2.462 GHz, 11 Channels (North America; FCC)
2.412~2.472 GHz, 13 Channels (Europe; CE/ETSI)
Modulation
DSSS
OFDM
CCK
DQPSK
DBPSK
Data Rate:
802.11g
54 Mbps with Auto Fall-Back
Security
WPA2, WPA and 64/128-bit WEP
Transmit Power
14 dBm (typical for 802.11g)
Antenna System
One (1) external, detachable
One (1) internal
Other
Input Voltage
12 VDC
Power Consumption
(Modem Module)
6 Watts
Data Ports
Ethernet 10/100BASE-T (Auto-sensing with Auto-MDIX): RJ-45 Ethernet (4)
RF
Female “F” type

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Specification
Value
Mechanical
Dimensions (W x D x H)
(approximate)
Not including “F” connector:
6 15/16 in. x 5 11/16 in. x 2 15/16 in. (17.7 cm x 14.5 cm x 5 cm)
Including “F” connector and wireless antenna:
6 15/16 in. x 6 in. x 2 15/16 in. (17.7 cm x 15.5 cm x 5 cm)
Weight (approximate)
13.7 oz (0.39 kg)
Operating Temperature
32˚ to 104˚F (0˚ to 40˚C)
Operating Humidity
0% to 90% RH non-condensing
Storage Temperature
-20˚ to 60˚C (-4˚ to 140˚F)
Standards and Approvals
Designed to Comply with
the Following Standards
PacketCable 1.5
DOCSIS 2.0, DOCSIS 1.1, DOCSIS 1.0
IEEE 802.11g
WEP, WPA, and WPA2
WMM, WPS
Regulatory and Safety
Approvals
As required per country where the DPC2425 will be used

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Ordering Information
Table 4. Ordering Information
Model
Description
Part Number
2 Voice Ports, North American Tuning Plan – NTSC
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 100-120 VAC/60 Hz, 15 VDC/1 A desktop linear switching power supply
● Ethernet cable
● CD-ROM containing user guide
North America
4028654
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● NTSC North American tuning plan
● 220 VAC/50-60 Hz, 15VDC/1 A desktop linear switching power supply
● Ethernet cable
● CD-ROM containing user guide
Argentina
4028655
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 120 VAC/50-60 Hz, 15VDC/1 A wall-mount linear switching power
supply
● Ethernet cable
● CD-ROM containing user guide
Brazil (Customer-specific configuration)
4028612
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 100-240 VAC/50-60 Hz, 15VDC/1 A desktop switching regulated power
supply
● Power cord, Brazil
● Ethernet cable
● CD-ROM containing user guide
Brazil (Customer-specific configuration)
4028619
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 100-120 VAC/50-60 Hz, 15VDC/1 A desktop linear switching power
supply
● Ethernet cable
● CD-ROM containing user guide
Columbia (Customer-specific configuration)
4039149
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 100-120 VAC/50-60 Hz, 15VDC/1 A desktop linear-switching power
supply
● Ethernet cable
● CD-ROM containing user guide
North America (Customer-specific configuration)
4036003
2 Voice Ports, International Tuning Plan – PAL/NTSC
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 230 VAC/50-60 Hz, 15VDC/1 A wall-mount linear switching power
supply for Europe
● Ethernet cable
● CD-ROM containing user guide
Europe (Customer-specific Configuration)
4029063

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Model
Description
Part Number
1 Voice Port, North American Tuning Plan – NTSC
Model DPC2425
DPC2425 DOCSIS 2.0 Wireless Residential Gateway with Embedded
Digital Voice Adapter. Includes:
● 220 VAC/50-60 Hz, 15VDC/1 A desktop linear switching power supply
● Ethernet cable
● CD-ROM containing user guide and USB driver
Argentina(Customer-specific Configuration)
4029064

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Replacement Components
Table 5. Replacement Components
Description
Part Number
Power Supply
Class 2 Linear Switching
100-120 VAC / 50-60 Hz, 15 VDC /1 A desktop style linear-switching power supply, North America
4018776
230 VAC / 50-60 Hz, 15 VDC /1 A wall-mount linear-switching power supply, Europe
4015455
220 VAC / 50 Hz, 15 VDC /1 A desktop style linear-switching power supply, Argentina
4023778
Power Cord
Power cord, 2 conductors, CEE7/16 to C7, INMETRO, non-polarized, Brazil
4009115
Data Cable
Ethernet cable, 1.2 meters
740580
CD-ROM
CD-ROM with User Guide
7016771
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. A
listing of Cisco's trademarks can be found at www.cisco.com/go/trademarks.
DOCSIS is a registered trademark of Cable Television Laboratories, Inc.
PacketCable is a trademark of Cable Television Laboratories, Inc.
Other third party trademarks mentioned are the property of their respective owners.
The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1009R)
Specifications and product availability are subject to change without notice.
 2008, 2010 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
Cisco Systems, Inc.
800 722-2009 or 678 277-1120 Part Number 7016387 Rev B
www.cisco.com November 2010