Cisco HWIC-1ADSL 1 Port Interface Card
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HWIC-1ADSL Cisco 1-Port Wan Interface Card Twisted Pair New

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Short Description:
HWIC-1ADSL 1-Port Asymmetric Digital Subscriber Line (ADSL) Wide Area Network Interface Card Twisted Pair High-Speed WIC Expansion Module | Made by Cisco | New Factory Sealed
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days
Understanding the HWIC-1ADSL 1-Port High-Speed WIC Expansion Module

The HWIC-1ADSL is a networking device that serves as a 1-Port Asymmetric Digital Subscriber Line (ADSL) Twisted Pair DSL Modem. It is designed to be used as a High-Speed Wide Area Network Interface Card (WIC) Expansion Module, providing enhanced connectivity options for networking solutions. In this detailed exploration, we will delve into the key features, functionality, and applications of the HWIC-1ADSL, ensuring that even those without a deep technical background can grasp its significance.

What is the HWIC-1ADSL?

The HWIC-1ADSL, or 1-Port Asymmetric Digital Subscriber Line Wide Area Network Interface Card Twisted Pair High-Speed WIC Expansion Module, is a specialized interface card designed for use in routers and other network devices. It serves as a crucial component in expanding a network's capabilities, particularly in scenarios where Asymmetric Digital Subscriber Line (ADSL) technology is employed.

Overview of Asymmetric Digital Subscriber Line (ADSL)

Before delving into the specifics of the HWIC-1ADSL, it's essential to understand the underlying technology it is built upon—Asymmetric Digital Subscriber Line (ADSL). ADSL is a type of digital communication technology widely used for transmitting data over copper telephone lines. It allows for high-speed data transfer, with the term "asymmetric" indicating that the upload and download speeds can differ.

Key Features of the HWIC-1ADSL Cisco 1-Port Wan Interface Card
  • Single-Port Design: The HWIC-1ADSL features a single port, making it suitable for connecting to a single ADSL line. This design choice offers simplicity and ease of use for specific network configurations.
  • Twisted Pair Connection: The utilization of a twisted pair connection ensures reliable and efficient data transmission. Twisted pair cables are known for their ability to minimize electromagnetic interference, providing a stable and high-quality connection.
  • High-Speed WIC Expansion: The High-Speed WIC (Wide Area Network Interface Card) expansion capability enhances the overall performance of the network. It enables the HWIC-1ADSL to handle high data transfer rates, meeting the demands of modern networking applications.
The functionality of the HWIC-1ADSL
  • Data Transmission: The primary function of the HWIC-1ADSL is to facilitate the transmission of data over ADSL connections. It acts as a bridge between the network device (such as a router) and the ADSL line, ensuring seamless communication.
  • Bandwidth Management: With its ADSL technology, the HWIC-1ADSL excels in managing bandwidth effectively. The asymmetric nature of ADSL allows for faster download speeds compared to upload speeds, catering to the typical usage patterns in home and business environments.
  • Compatibility with Routers: Designed as an expansion module for routers, the HWIC-1ADSL seamlessly integrates with compatible devices. This compatibility ensures a hassle-free upgrade for existing network infrastructures.
Advantages of Using the HWIC-1ADSL
  • Improved Connectivity: By incorporating the HWIC-1ADSL into a network setup, users can experience improved connectivity, especially in scenarios where ADSL is the preferred mode of data transmission.
  • Cost-Effective Solution: The single-port design and focused functionality make the HWIC-1ADSL a cost-effective solution for organizations looking to enhance their network capabilities without investing in extensive infrastructure upgrades.
  • Versatility in Deployment: The HWIC-1ADSL's compatibility with routers and other network devices adds versatility to its deployment. It can be seamlessly integrated into various networking environments to address specific connectivity requirements.
Applications of the HWIC-1ADSL

The HWIC-1ADSL finds applications in a variety of networking scenarios, catering to different needs across various industries. Let's explore some common use cases:

Small Office/Home Office (SOHO) Environments

In SOHO environments, where cost-effectiveness and simplicity are key considerations, the HWIC-1ADSL serves as an ideal solution. Its 1-Port configuration is well-suited for smaller setups with limited connectivity requirements.

Branch Office Connectivity

For businesses with multiple branches, the HWIC-1ADSL facilitates high-speed connectivity between remote locations and the central office. This ensures efficient data transfer and seamless communication across the organization.

Internet Service Providers (ISPs)

Internet Service Providers can leverage the HWIC-1ADSL to enhance their service offerings. The module's compatibility with existing infrastructure allows ISPs to provide high-speed DSL connectivity to customers without significant infrastructure investments.

Remote Work Solutions

Given the increasing trend of remote work, the HWIC-1ADSL can be employed to ensure reliable and high-speed internet access for remote employees. Its versatility and compatibility make it a valuable tool in supporting remote work environments.

Resiliency and High Availability

The Cisco HWIC-1ADSL1-Port Wan Interface Card is a high-speed WAN interface card that provides a single ADSL interface for connecting to an ADSL or ADSL2/2+ service. It is designed to provide resiliency and high availability through several features such as:

  • Automatic failover: In the event of a primary line failure, the HWIC automatically switches to the secondary line to maintain connectivity.
  • Loopback detection: The HWIC can detect when a loopback condition occurs on the line and automatically switch to the secondary line to prevent data loss.
  • DSL line coding support: The HWIC supports multiple line coding options, including Trellis and Discrete Multi-Tone (DMT), to provide robust and reliable connections.
  • Quality of Service (QoS): The HWIC supports QoS features such as traffic shaping and prioritization to ensure that critical applications have priority over less important traffic.
  • Remote management: The HWIC can be remotely managed and configured, allowing for quick and easy troubleshooting and maintenance.
Compliant Standards of High-Speed WIC

The Cisco HWIC-1ADSL1-Port WIC Expansion Module is a compliant standard hardware expansion module for Cisco routers. It is designed to add an Asymmetric Digital Subscriber Line (ADSL) port to a Cisco router, allowing for the connection of an additional DSL line to the network.

This module is compliant with various standards, including ITU G.992.1 (G.dmt), ITU G.992.2 (G.lite), and ITU G.994.1 (G.hs). These standards are used for the transmission of data over DSL lines and ensure compatibility with a wide range of DSL service providers.

The module also supports various DSL line coding schemes, including ANSI T1.413, G.dmt, and G.lite. This allows for the use of different types of DSL lines and service providers, providing flexibility and scalability for the network.

Additionally, the module has built-in Quality of Service (QoS) features that allow for prioritization of different types of network traffic, ensuring that critical applications receive the necessary bandwidth and resources.

The Role of DSL Modems

A DSL modem is a crucial component in a DSL internet connection. It modulates and demodulates digital signals to facilitate the transmission of data between a user's network and the internet service provider. The HWIC-1ADSL, being a 1-Port ADSL modem, is specifically tailored for such purposes.

General Information about the Cisco HWIC-1ADSL 1 Port Expansion Module
  • Manufacturer: Cisco
  • Part Number or SKU# HWIC-1ADSL
  • Product Name: 1-port ADSL High-Speed WAN Interface Card
  • Product Type: Expansion Module
Interfaces/Ports of WAN Interface Card
  • Interfaces/Ports: 1 x ADSL WAN
  • Interfaces/Ports Details: 1 x RJ-11 ADSL WAN
Performance for 1-Port Expansion Module
  • Connectivity Media: Twisted Pair
  • Data Transfer Rate: 8 Mbps ADSL Downstream
  • Data Transfer Rate: 819.20 Kbps ADSL Upstream
  • Data Transfer Rate: 12 Mbps ADSL2 Downstream
  • Data Transfer Rate: 1 Mbps ADSL2 Upstream
  • Data Transfer Rate: 24 Mbps ADSL2+ Downstream
  • Data Transfer Rate: 1.50 Mbps ADSL2+ Upstream
Management & Protocols
  • Supports IP quality of service (QoS)


  • Supports ADSL over basic telephone service with Annex A ITU G. 992.1 (ADSL), G.992.3 (ADSL2), and G.992.5 (ADSL2+)
  • Supports reach-extended ADSL2 standard (G.992.3) Annex L
  • Complies with ANSI T1.413 issue 2
  • Supports ATM Adaptation Layer 5 (AAL5) services
  • Supports ATM CoS features constant bit rate (CBR), non-real-time variable bit rate (VBR-nrt), real-time variable bit rate (VBR-rt),
  • and unspecified bit rate (UBR)
  • Supports up to 23 virtual circuits per HWIC
  • Supports Dying Gasp function
  • Interoperates with third-party DSLAMs

Outline, the HWIC-1ADSL stands as a reliable and efficient solution for expanding network capabilities, particularly in environments where ADSL technology is prevalent. Its single-port design, twisted pair connectivity, and High-Speed WIC expansion make it a versatile choice for organizations seeking to enhance their network infrastructure.

Understanding the key features, functionality, advantages, and installation procedures of the HWIC-1ADSL empowers network administrators to make informed decisions regarding its deployment. As technology continues to evolve, the HWIC-1ADSL remains a valuable component in the realm of networking, contributing to the seamless and efficient exchange of data across diverse environments.

Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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