The Cisco 1721 Modular Access Router is
designed to help organizations embrace the productivity benefits of
e-business applications. The Cisco 1721 router enables e-business by
delivering secure Internet, intranet, and extranet access with virtual
private networks (VPNs) and firewall technology. The Cisco 1721 router
offers:
Figure 1:
The Cisco 1721 Router delivers a versatile e-business WAN access solution.
- Wide array of WAN access options, including high-speed business-class digital subscriber line (DSL)
- High-performance routing with bandwidth management
- Inter-virtual LAN (VLAN) routing
- VPN access with firewall option
The Cisco 1721 supports
standards-based IEEE 802.1Q VLAN routing, which enables enterprises to
set up multiple VLANs and route between them for added security within
the internal corporate network.
Powered by Cisco IOS®
Software, the Cisco 1721 router provides a cost-effective solution for
small and medium businesses and enterprise small branch offices to
support e-business applications through a comprehensive feature set in
a compact design.
The Cisco 1721 router offers the following key features:
- A RISC processor to support high-performance routing, encryption, and broadband services
- One autosensing 10/100 Fast Ethernet port
- Two WAN interface card (WIC) slots that support the same data WAN interface cards as the Cisco 1600, 2600, and 3700 routers
- One auxiliary (AUX) port (up to 115.2-kbps asynchronous serial)
- One console port
- One internal expansion slot for the hardware-assisted VPN encryption card (MOD1700-VPN)
The Cisco 1700 Series supports the value of end-to-end Cisco network solutions with the following benefits:
- Flexibility—The
modular Cisco 1721 adapts easily to fit the needs of growing
businesses. Interchangeable WAN interface cards enable easy additions
or changes in WAN technologies without requiring a forklift upgrade of
the entire platform. Modular data slots enable users to tailor data
services as needed.
- Security—The
Cisco 1721 supports hardware-assisted wire-speed Triple Digital
Encryption Standard IP Security (3DES IPSec) VPN encryption (using
optional VPN module), a Cisco IOS Software-based stateful inspection
firewall, and an intrusion detection system (IDS) that allows customers
to keep their data safe.
- Business-class DSL—Business-class
DSL is delivered through the optional asymmetric DSL (ADSL) or
symmetrical high-bit rate DSL (G.shdsl) WICs. The Cisco 1700 Series
business-class DSL solution combines the cost benefits of DSL service
with the advanced routing capability required for business use of the
Internet. Through enhanced DSL quality-of-service (QoS) features,
performance levels for mission-critical applications and toll-quality
voice/data integration are guaranteed.
- Traffic management—The
Cisco 1721 is based on Cisco IOS Software, the accepted standard for
Internet operations. Cisco IOS Software allows traffic prioritization
by user or application, ensuring that the most strategic e-business
applications and time-sensitive applications perform as expected.
E-Business Applications
VPN and Security
The Cisco 1721 router is
part of the end-to-end Cisco VPN solution. VPNs create secure
connections via the Internet to connect geographically dispersed
offices, business partners, and remote users while providing security,
traffic prioritization, management, and reliability equal to that of
private networks.
By supporting industry
standards, IPSec, Layer 2 Tunneling Protocol (L2TP), and DES and 3DES,
the Cisco 1721 router delivers robust VPN solutions to ensure data
privacy, integrity, and authenticity.
The optional VPN hardware
encryption module for the Cisco 1721 router further optimizes VPN
encryption performance. By offloading encryption tasks to the VPN
module, the router processor is freed to handle other operations. The
VPN module accelerates the rate at which encryption occurs, speeding
the process of transmitting secure data, a critical factor when using
3DES encryption.
The Cisco 1721 router offers
integrated security features, including stateful inspection firewall
functionality and IDS as an optional Cisco IOS Software feature. By
deploying Cisco IOS Software firewall functionality, customers do not
need to purchase or manage multiple devices, thus simplifying network
management and reducing capital costs. Additionally, remote management
applications, such as Cisco Security Device Manager (SDM), make it
easier than ever to deploy and monitor Cisco IOS Firewall and VPN on
your Cisco 1721 router.
Cisco IOS Software firewall
security features include access control lists (ACLs), user
Authentication, Authorization, and Accounting (such as Password
Authentication Protocol/Challenge Handshake Authentication Protocol
[PAP/CHAP], TACACS+, and Remote Access Dial-In User Service [RADIUS]).
These security features provide the optimal level of firewall
protection to customers.
The Cisco 1700 Series
routers support the Cisco Easy VPN Remote feature that allows the
routers to act as remote VPN clients. As such, these devices can
receive predefined security policies from the headquarters' VPN
head-end, thus minimizing configuration of VPN parameters at the remote
locations. This solution makes deploying VPN simpler for remote offices
with little IT support or for large deployments where it is impractical
to individually configure multiple remote devices. While customers
wishing to deploy and manage site-to-site VPN would benefit from Cisco
Easy VPN Remote because of its simplification of VPN deployment and
management, managed VPN service providers and enterprises who must
deploy and manage numerous remote sites and branch offices with
Cisco IOS routers for VPN will realize the greatest benefit.
The Cisco 1700 Series
routers also support the Cisco Easy VPN Server feature that allows a
Cisco 1700 router to act as a VPN head-end device. In site-to-site VPN
environments, the Cisco 1700 router can terminate VPN tunnels initiated
by the remote office routers using the Cisco Easy VPN Remote. Security
policies can be pushed down to the remote office routers from the Cisco
1700 router. In addition to terminating site-to-site VPNs, a Cisco 1700
router running the Unified VPN Access Server can terminate remote
access VPNs initiated by mobile and remote workers running Cisco VPN
client software on PCs. This flexibility makes it possible for mobile
and remote workers, such as sales people on the road, to access company
intranet where critical data and applications exist.
Business-Class DSL
The Cisco 1721 router supports business-class DSL through the optional ADSL or G.shdsl WICs.
The Cisco 1721
business-class DSL solution combines the cost benefits of DSL service
with the advanced routing capability required for business use of the
Internet. Through enhanced DSL QoS features, performance levels for
mission-critical applications are guaranteed. (See Figure 2.)
Figure 2
The Cisco 1700 Series Deployed with an ADSL WIC
When equipped with optional
Ethernet WICs, the Cisco 1700 Series supports a two- or three-Ethernet
configuration, enabling deployment with an external broadband modem
(such as DSL, cable modem, or wireless modem)—often supplied by a
service provider as a demarcation point and deployment of a
demilitarized zone (DMZ). (See Figure 3.)
Figure 3:
The Cisco 1700 Series Deployed with an Ethernet WIC and an External DSL or Cable Modem
Comprehensive Feature Set and Benefits
The Cisco 1721 offers a
broad set of features designed to allow businesses to attain maximum
benefits on their investment and to easily deploy e-business solutions.
See Table 2 for key features and benefits.
Table 1 Cisco 1721 Key Features and Benefits
| Features |
Benefits |
| Flexibility and Investment Protection |
|
|
Modular Architecture
|
- Wide array of WAN options provide flexibility
and investment protection by accommodating future technologies while
providing a solution to meet today's needs
|
|
WAN Interface Cards Shared with Cisco 1600, 2600, and 3700 Routers
|
- Reduces cost of maintaining inventory
- Offers lower training costs for support personnel
- Protects investments through reuse on various platforms
|
|
Full Cisco IOS Support, including Multiprotocol Routing, QoS
|
- Provides industry's most robust, scalable,
and feature-rich internetworking software support using the accepted
standard networking software for Internet and private WANs
- Constitutes part of the Cisco end-to-end network solution
|
|
Quality of Service (QoS)
|
- Offers support for advanced QoS features such
as the Resource Reservation Protocol (RSVP), Weighted Fair Queuing
(WFQ), and IP Precedence to reduce recurring WAN costs
- QoS features (such as committed access rate
[CAR], policy routing, low-latency queuing [LLQ], generic traffic
shaping [GTS], Frame Relay traffic shaping [FRTS], and RSVP) allocate
WAN bandwidth to priority applications for improved performance
|
|
Expansion Slot on Motherboard
|
- Allows expandability to support services such as hardware-assisted encryption
|
| Complete Security and VPN Capability |
|
|
Stateful Inspection Firewall
(the Cisco IOS Firewall includes context-based access control for
dynamic firewall filtering, denial-of-service detection and prevention,
Java blocking, and real-time alerts)
|
- Allows internal users to access the Internet
with secure, per-application-based, dynamic access control while
preventing unauthorized Internet users from accessing the internal LAN
|
|
High-Performance VPN Encryption (IPSec DES and 3DES VPN module for high-speed, hardware-based encryption)
|
- Provides high-speed hardware-assisted encryption up to T1/E1 performance
- Enables creation of wire-speed VPNs by
providing industry-standard data privacy, integrity, and authenticity
as data traverses public networks
|
|
Device Authentication and Key Management
(Internet Key Exchange [IKE], X.509v3 digital certification, support
for Certificate Enrollment Protocol (CEP) with certificate authorities
(CAs) such as Verisign and Entrust)
|
- Ensures proper identity and authenticity of devices and data
- Enables scalability to very large IPSec networks through automated key management
|
|
VPN Tunneling with IPSec, Generic Routing Encapsulation (GRE), L2TP, L2F
|
- Allows any standards-based IPSec or L2TP client to interoperate with Cisco IOS tunneling technologies
|
|
Cisco Easy VPN Remote
|
- Allows the router to act as remote VPN client and have VPN polices pushed down from the VPN concentrator
|
|
Cisco Easy VPN Server
|
- Allows the router to terminate remote access
VPNs initiated by mobile and remote workers running Cisco VPN client
software on PCs; and allows the router to terminate site-site VPNs
initiated by Cisco IOS routers using the Cisco Easy VPN Remote feature
|
|
Cisco SDM
|
- Simplifies router and security configuration
through smart wizards to enable customers to quickly and easily deploy,
configure and monitor a Cisco access router without requiring knowledge
of Cisco IOS Command Line Interface (CLI)
|
| Business-Class DSL |
|
|
Supports ADSL and G.shdsl
with advanced QoS features (Multilink PPP [MLP] with link fragmentation
and interleaving [LFI], LLQ, Weighted Random Early Detection [WRED],
CAR, differentiated services)
|
- Takes advantage of broadband access
technologies such as ADSL or G.shdsl to increase WAN connectivity
speeds and reduce WAN access costs
- Delivers business-class broadband access
- Offers efficient use of bandwidth
|
| Simplified Management and Ease of Deployment |
|
|
Device Integration
(integrated router, firewall, encryption, VPN, tunnel server,
data/channel service unit [DSU/CSU], and Network Termination 1 [NT1] in
a single device)
|
- Reduces costs and simplifies management compared to solutions based upon multiple, separate devices
|
|
Manageable via Simple Network Management Protocol (SNMP) (CiscoView, CiscoWorks 2000, Telnet, and console port)
|
- Allows central monitoring, configuration, and
diagnostics for all functions integrated in the Cisco router, reducing
management time and costs
|
|
Supports Cisco ConfigMaker, SETUP Configuration Utility
|
- Simplifies and reduces deployment time and
costs with graphical LAN/VPN policy configurator; command-line,
context-sensitive configuration questions
|
|
VLAN Support
|
- Enables inter-VLAN routing via the standards-based IEEE 802.1Q
- Available in all Cisco IOS feature sets, including base Cisco IOS feature set
|
|
Support for Cisco AutoInstall
|
- Configures remote routers automatically across a WAN connection to save cost of sending
|
|
LED Status Indicators
|
- Provide at-a-glance indications for power, VPN module, network activity, and interface status
|
| Reliability |
|
|
Dial-on-Demand Routing
|
- Allows automatic backup of WAN connection in case of a primary link failure
|
|
Dual Bank Flash Memory
|
- Backup copy of the Cisco IOS Software can be stored in Flash memory
|
|
Hot Standby Router Protocol (HSRP)
|
- Provides high network availability
|
Hardware/Software Options
Comprehensive WAN Support
The Cisco 1721 supports up
to two of the WICs listed in Table 3. These WICs support a wide variety
of WAN technologies: Integrated Services Digital Network (ISDN),
asynchronous serial and synchronous serial such as leased lines, Frame
Relay, ADSL, G.shdsl, Switched 56, X.25, and Switched Multimegabit Data
Service (SMDS), and single-port Ethernet. Also available are WICs that
integrate a DSU/CSU into the Cisco 1721, eliminating the support costs
and complexity of deploying and managing external devices.
Table 2 WAN Support for the Cisco 1721
| WIC |
Description |
|
WIC-1T
|
One-port serial, asynchronous and synchronous (T1/E1)
|
|
WIC-2T
|
Two-port serial, asynchronous and synchronous (T1/E1)
|
|
WIC-2A/S
|
Two-port low-speed serial (up to 128 kbps), asynchronous and synchronous
|
|
WIC-1B-S/T
|
One-port ISDN Basic Rate Interface (BRI) S/T
|
|
WIC-1B-U
|
One-port ISDN BRI U interface with integrated NT1
|
|
WIC-1DSU-56K4
|
One-port integrated 56/64-kbps, four-wire DSU/CSU
|
|
WIC-1DSU- T1
|
One-port integrated T1/fractional T1 DSU/CSU
|
|
WIC-1ADSL
|
One-port ADSL interface
|
|
WIC-1ENET
|
One-port 10BASE-T Ethernet interface
|
|
WIC-1SHDSL
|
One-port G.shdsl interface
|
|
VWIC-1MFT-T1
|
One-port RJ-48 multiflex trunk - T1
|
|
VWIC-2MFT-T1
|
Two-port RJ-48 multiflex trunk - T1
|
|
VWIC-2MFT-T1-DI
|
Two-port RJ-48 multiflex trunk - T1 with drop and insert
|
|
VWIC-1MFT-E1
|
One-port RJ-48 multiflex trunk - E1
|
|
VWIC-2MFT-E1
|
Two-port RJ-48 multiflex trunk - E1
|
|
VWIC-2MFT-E1-DI
|
Two-port RJ-48 multiflex trunk - E1 with drop and insert
|
|
VWIC-1MFT-G703
|
One-port RJ-48 multiflex trunk - E1 G.703
|
|
VWIC-2MFT-G703
|
Two-port RJ-48 multiflex trunk - E1 G.703
|
Hardware VPN Encryption Module
All Cisco 1700 models are
equipped with an internal expansion slot to support an optional
field-installable hardware VPN encryption module. The VPN encryption
module offloads encryption processing from the Cisco 1700 Series RISC
processor, providing performance up to T1/E1 speeds. The VPN encryption
module (MOD1700-VPN) supports a maximum of 100 remote access tunnels.
Cisco IOS Software Feature Sets
Cisco 1721 routers support a
full range of Cisco IOS features, including multiprotocol routing, QoS,
VPN, firewall/IDS, and legacy IBM protocol and applications in use
today.
The Cisco 1721 router is
shipped with the base Cisco IOS feature sets supporting IP routing and
standards such as Network Address Translation (NAT), Open Shortest Path
First (OSPF), RADIUS, Remote Monitoring (RMON), VLAN routing, basic QoS
feature (Weighted Fair Queing), and Next Hop Resolution Protocol
[NHRP]).
Cisco IOS IP Plus feature
sets contain L2TP, L2F, Border Gateway Protocol (BGP), IP multicast,
Frame Relay switched virtual circuit (SVC), RSVP, PPP over Ethernet
client, NetFlow, the Netware Link Services Protocol (NLSP), Simple
Multicast Routing Protocol (SMRP), the Web Cache Control Protocol
(WCCP), and the Network Timing Protocol (NTP). In addition, enhanced
QoS features are also supported (LLQ, FRTS, RSVP, CEF, WRED, DiffServ,
MLPP with LFI).
IPSec encryption is offered
in special encryption feature sets (Plus IPSec 56 and Plus IPSec 3DES).
To build an IP VPN, the recommended feature sets are IP/Firewall Plus
IPSec 56 or IP/Firewall Plus IPSec 3DES.
For a detailed list of features and memory requirements for a given feature set, see Cisco IOS 1700 Release Notes.
Network Management and Installation Tools
The Cisco 1721 router supports a range of network-management and ease-of-installation tools.
Cisco Security Device Manager (SDM) is
an intuitive, easy to use, web-based device management tool embedded
within the Cisco IOS access routers. SDM enables resellers and
customers to quickly and easily deploy, configure and monitor a Cisco
access router without requiring knowledge of Cisco IOS Command Line
Interface (CLI). Through smart wizards, SDM can automate best practices
for NAT, ACLs, VPN and firewall deployment. Other common LAN, WAN, and
routing protocol configurations can also be easily performed through
SDM. Network resellers and customers can further fine-tune router
configurations for changing business needs and preview the Cisco IOS
CLI for each configuration through SDM.
CiscoWorks2000,
the industry-leading Web-based network management suite, provides the
ability to remotely configure, administer, monitor, and troubleshoot
the Cisco 1721 router; and increased visibility into network behavior
to quickly identify performance bottlenecks and long-term performance
trends. It also provides sophisticated configuration tools to optimize
bandwidth and utilization across expensive and critical WAN links in
the network.
CiscoView,
part of CiscoWorks2000, is a Web-based tool that graphically provides
real-time status of the Cisco 1721 router. It can drill down to display
monitoring information on interfaces and provide dynamic status,
statistics, and comprehensive configuration information.
CiscoWorks Small Network Management Solution (SNMS)
is a comprehensive, Web-based network management solution that provides
a powerful set of monitoring, configuration, and management tools to
simplify the administration of small to medium business networks and
workgroups that contain up to 20 Cisco internetworking products
(switches, routers, hubs, and access servers). CiscoWorks SNMS is an
ideal solution for companies that need server monitoring and network
management from a single application to optimize performance and
maximize network productivity. With CiscoWorks SNMS, Cisco provides a
cost-effective and user-friendly solution that helps Cisco customers
make the optimal use of their resources. The solution provides the
following:
- Web interface for all applications—CiscoWorks
SNMS can be used from any browser in the network with the appropriate
user authentication.
- Simple integrated installation,
autodiscovery, and automated import of devices using SNMP reduces
complexities and overall setup time associated with managing the
network.
- CiscoWorks SNMS provides standards-based
multivendor management. The WhatsUp Gold application in CiscoWorks SNMS
allows administrators to view live network information, including the
status of all hosts, servers, workstations, routers, other devices, and
services.
- CiscoWorks SNMS grows and adapts to the
changing devices in a dynamic network. Regular device updates are
provided via downloadable files from Cisco.com. This scenario ensures
that users can manage the most currently available Cisco devices
without waiting for new versions of CiscoWorks SNMS to be released.
Cisco ConfigMaker
is a Microsoft Windows wizard-based tool designed to configure a small
network of Cisco routers, switches, hubs, and other network devices
from a single PC. This tool makes it easy to configure value-add
security features such as the Cisco IOS Firewall Feature Set, IPSec
encryption, NAT, the Dynamic Host Configuration Protocol (DHCP) server,
and to establish VPN policies (including QoS and security).
Cisco 1700 Series
The Cisco 1700 Series
enables deployment of a cost-effective, seamless network infrastructure
for small and medium-sized businesses and small enterprise branch
offices. The Cisco 1700 Series access routers include the Cisco 1710,
1721,1751, 1760 (offered as a base model), Cisco 1751-V and Cisco
1760-V (offered as a multiservice-ready model.)
The Cisco 1751 and Cisco
1760 Modular Access Routers are optimized for multiservice data and
voice solutions. The Cisco 1721 router is a modular device optimized
for data-access applications. The Cisco 1710 Security Access Router
features comprehensive security with VPNs, Cisco IOS Firewall, and
advanced routing functionality in an all-in-one device.
Service and Support
Technical Support Services
Technical Support Services
for the Cisco 1721 are available through Cisco SMARTnet and SMARTnet
Onsite service programs. Cisco SMARTnet support augments the resources
of your operations staff; it provides them access to a wealth of
expertise, both on line and via telephone, the ability to refresh their
system software at will, and a range of hardware Advance Replacement
options.
Cisco SMARTnet Onsite
provides all SMARTnet services and complements the hardware
Advance-Replacement feature by adding the services of a field engineer,
offering support that can be critical for those locations where
staffing is insufficient or unavailable to perform parts-replacement
activities. Table 4 gives features and benefits of Cisco SMARTnet
support.
Table 3 Cisco SMARTnet Features and Benefits Technical Support Services
|
Features |
Benefits |
| Cisco SMARTnet Support Cisco SMARTnet Onsite Support |
- Access 24 x 7 to software updates
- Web access to technical repositories
- Telephone support through the Technical Assistance Center (TAC)
- Advance Replacement of hardware parts
|
- Enables proactive or expedited issue resolution
- Lowers total cost of ownership by utilizing Cisco expertise and knowledge
- Minimizes network downtime
|
Technical Support Services Delivery
Cisco SMARTnet support is
available to customers from both Cisco directly and through Cisco
channel partners. Partners purchasing direct from Cisco may offer Cisco
Branded Resale of Cisco SMARTnet Software. Partners purchasing through
distribution may offer Packaged Cisco SMARTnet Software.
For partners supporting the
Cisco 1721 with their own service and support infrastructure, System
Integrator Support 98 (SIS98) is available.
Technical Specifications
Figure 4
Rear Panel, Cisco 1721 Access Router
Physical Interfaces/Ports
- One 10/100BASE-TX Fast Ethernet port (RJ-45)
-
- Automatic speed detection
- Automatic duplex negotiation
- IEEE 802.1Q VLAN routing
- Two WAN interface card slots
-
- Supports any combination of two WAN interface cards as shown in Table 3
- One auxiliary (AUX) port
-
- RJ-45 jack with EIA/TIA-232 interface
- Asynchronous serial data terminal equipment
(DTE) with full modem controls Carrier Detect, data set ready (DSR),
Request To Send (RTS), Clear To Send (CTS)
- Asynchronous serial data rates up to 115.2 kbps
- One console port
-
- RJ-45 jack with EIA/TIA-232 interface
- Asynchronous serial DTE
- Transmit/receive rates up to 115.2 kbps (default 9600 bps, not a network data port)
- No hardware handshaking such as RTS/CTS
- One internal expansion slot for support of hardware-assisted services such as VPN encryption
(up to T1/E1 performance)
WAN Interface Specifications (Optional)
- Synchronous serial interfaces on serial WAN interface cards
-
- Interface speed: up to 2.0 Mbps (T1/E1)
- Synchronous serial protocols: Point-to-Point Protocol (PPP), High-Level Data Link Control (HDLC),
Link Access Procedure, Balanced (LAPB), IBM Systems Network Architecture (SNA)
- Synchronous serial WAN services: Frame Relay, X.25, SMDS
- Synchronous serial interfaces supported on the WIC-1T, WIC-2T, and WIC-2A/S cards: V.35, EIA/TIA-232, EIA/TIA-449, X.21, EIA-530
- Asynchronous serial interfaces on serial WAN interface cards
-
- Interface speed: up to 115.2 kbps
- Asynchronous serial protocols: PPP, Serial Line Internet Protocol (SLIP)
- Asynchronous interface: EIA/TIA-232
- ADSL WAN interface card
-
- Supports ATM adaptation layer 5 (AAL5) services and applications
- Interoperates with Alcatel DSL access multiplexer (DSLAM) with Alcatel chipset and Cisco 6130/6260 DSLAM with Globespan chipset
- Complies with ANSI T1.413 issue 2 and ITU 992.1 (G.DMT)
- G.shdsl WAN interface card
-
- Based on the ITU G.991.2, delivers
symmetrical data rates from 192 kbps to 2.3 Mbps; speeds vary,
depending on loop length and line conditions
- ISDN WAN interface cards
-
- ISDN dialup and ISDN DSL (IDSL) at 64 and 128 kbps
- Encapsulation over IDSL, Frame Relay, and PPP
Dimensions and Weight
- Width: 11.2 in.(28.4 cm)
- Height: 3.1 in. (7.85 cm)
- Depth: 8.7 in. (22.1 cm)
- Weight (maximum): 2.9 lb (1.32 kg)
Power
- Locking connector on power socket
- AC input voltage: 100 to 240 VAC
- Frequency: 47 to 64 Hz
- AC input current: 0.5 amps
- Power dissipation: 20W (maximum)
Environmental
- Operating temperature: 32° to 104° F (0° to 40° C)
- Nonoperating temperature: -4° to 149° F (-20° to 65° C)
- Relative humidity: 10 to 85% noncondensing operating; 5 to 95% noncondensing, nonoperating
Safety
- UL 1950
- CSA 22.2—No. 950
- EN60950
- EN41003
- AUSTEL TS001
- AS/NZS 3260
- ETSI 300-047
- BS 6301 (power supply)
EMI
- AS/NRZ 3548 Class A
- Class B
- FCC Part 15 Class B
- EN60555-2 Class B
- EN55022 Class B
- VCCI Class II
- CISPR-22 Class B
Immunity
- 55082-1 Generic Immunity Specification Part 1: Residential and Light Industry
- IEC 1000-4-2 (EN61000-4-2)
- IEC 1000-4-3 (ENV50140)
- IEC 1000-4-4 (EN61000-4-4)
- IEC 1000-4-5 (EN61000-4-5)
- IEC 1000-4-6 (ENV50141)
- IEC 1000-4-11
- IEC 1000-3-2
Network Homologation
- USA: ATIS/ACTA -TIA/EIA/IS - 968 (Former part 68), TIA/EIA/IS-883, T1.TRQ.6-2001, TIA/EIA/TSB-129
- Canada - CS-03
- Japan - JATE
- Australia - AS/ACIF: S-02, S-043, C-559; ACA TS-002, TS-003, TS-006, TS-016, TS-031
- New Zealand - PTC107, PTC200, PTC211, PTC270, CTR3
- European Union + Switzerland: Directive 1999/5/EC
- Russia - CTR2, CTR3, CTR21, ITU-G.992.1, ITU-G991.2
- Belarus - CTR3, CTR21
- Czechia - CTR2, CTR3, CTR21
- Poland - CTR3, PB-TE ITU-G.992.1
- Hungary - CTR2, CTR3, CTR21, ITU-G.992.1
- Singapore - IDA: TS-PSTN1, TS-ISDN1, TS-ADSL
- Taiwan - PSTN01, IS6100, ID002
- Brazil - CTR3, CS-03
- Mexico - CTR3, CS-03, FCC part 68
- South Africa- CTR3
The Cisco 1700 series,
including the Cisco 1721, is in compliance with the requirements of the
countries for distribution. The Cisco 1700 Series conforms to Safety,
EMI, Immunity, and Network homologation standards. Details can be
obtained through your Cisco reseller or account manager.
Cisco 1721 Router Cabling and Installation
Including License and Warranty
1 Cisco One-Year Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and
various services that you can use during the warranty period. Your
formal Warranty Statement, including the warranties and license
agreements applicable to Cisco software, is available on Cisco.com.
Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
1. 
Launch your browser, and go to this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that the part number 78-5235-03A0 is highlighted.
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco Limited Warranty and Software License page from the Information Packet appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
Note You must have Adobe Acrobat Reader to view and print PDF files. You can download the reader from Adobe's website: http://www.adobe.com
3. To read translated and localized warranty information about your product, follow these steps:
a. Enter this part number in the Warranty Document Number field:
78-10747-01C0
b. Select the language in which you would like to view the document.
c. Click Go.
The Cisco warranty page appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe Portable Document Format (PDF).
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/public/Support_root.shtml.
Duration of Hardware Warranty
One (1) Year
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to
ship a replacement part within ten (10) working days after receipt of a
Return Materials Authorization (RMA) request. Actual delivery times can
vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from
whom you purchased the product. If you purchased the product directly
from Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference.
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Company product purchased from
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Company telephone number
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Product model number
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Product serial number
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Maintenance contract number
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2 Overview
This document describes the steps for installing your Cisco 1721 router with its complement of WAN interface cards (WICs).
Additional documentation can be found on Cisco.com.
Product Serial Number Location
The serial number label for Cisco 1721 router is located on the rear of the chassis, to the right of the power switch.
3 Parts List
Your router package should include the following items:
•One Cisco 1721 router
•One blue RJ-45-to-DB-9 console cable
•One DB-9-to-DB-25 adapter
•One black power supply
•One black power supply cord
•Product documentation
Items You Need to Provide
Depending on your network environment, you may need to provide some of the following items to install the router:
•Ethernet hub or switch to connect the router to the local network
•Straight-through
Ethernet cables (RJ-45-to-RJ-45) to connect the router to a broadband
(xDSL or cable) modem and to a hub or switch
•Cisco WIC(s), if you did not order the router with WICs already installed
•Cables to connect WICs to the appropriate WAN services
•External NT-1 or data service unit/channel service unit (DSU/CSU), if needed, to connect a WIC to WAN services
4 Connect the Power Supply
Follow these steps to connect the router to the power supply:
Step 1 Connect the attached power supply cord to the power socket (labeled +5, +12, -12 VDC) on the back panel of the router, as shown in Figure 1.
Figure 1 Connecting the Power Supply
Step 2 Connect the separate power cord to the power socket on the power supply.
Step 3 Connect the other end of the separate power cord to a power outlet.
Step 4 Turn on the router by pressing the power switch to the on ( | ) position.
Step 5 Confirm that the router has power by checking that the PWR LED on the front panel is on.
5 Connect the Router to Your Local Network
You need to provide
straight-through Ethernet cables for connecting the router to the local
Ethernet network. For more information on these cables, refer to the
"Cabling Specifications" chapter in the hardware installation guide
that came with the router. Follow these steps to connect the router to
your local network:
Step 1 Connect one end of an Ethernet cable to th
