HWIC-1ADSL Cisco 1 Port Expansion Module
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Cisco HWIC-1ADSL 1-port ADSL WIC Expansion Module Twisted Refurbished

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Part Number#: HWIC-1ADSL
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Short Description:
HWIC-1ADSL 1-Port Asymmetric Digital Subscriber Line (ADSL) Twisted Pair DSL Modem High-Speed Wide Area Network Interface Card (WIC) Expansion Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Overview of the Cisco HWIC-1ADSL 1-port ADSL WIC Expansion Module

In the ever-evolving landscape of networking technologies, the HWIC-1ADSL stands as a testament to innovation and efficiency. This high-performance module, designed as a 1-Port Asymmetric Digital Subscriber Line (ADSL) Twisted Pair DSL Modem, serves as a crucial component in the arsenal of networking professionals. In this comprehensive guide, we will delve into the intricacies of the HWIC-1ADSL, exploring its features, benefits, and applications.

Understanding Asymmetric Digital Subscriber Line (ADSL)Definition and Basics

Before we embark on our exploration of the HWIC-1ADSL, it's essential to grasp the fundamentals of Asymmetric Digital Subscriber Line (ADSL). ADSL is a type of digital communication technology that enables high-speed data transmission over traditional twisted-pair copper telephone lines. The "asymmetric" nature of ADSL implies that it allows for different upload and download speeds, catering to the prevalent usage patterns where users often require faster download speeds than upload speeds.

Twisted Pair DSL Modem: Bridging the Analog-Digital Divide

The HWIC-1ADSL incorporates the Twisted Pair DSL Modem technology, a critical element in transforming analog signals into digital data for efficient transmission. Twisted pair cables, consisting of pairs of insulated copper wires twisted together, form the foundation of this technology. The modulation and demodulation processes within the modem facilitate the conversion of digital signals from a router or network device into analog signals for transmission over copper lines and vice versa.

HWIC-1ADSL: Unveiling the FeaturesSingle Port Design

The HWIC-1ADSL is distinguished by its streamlined design, featuring a single port that efficiently handles the transmission of data over the ADSL network. This simplicity in design contributes to ease of installation and maintenance, making it an ideal choice for various networking environments.

High-Speed Data Transmission

One of the standout features of the HWIC-1ADSL is its ability to facilitate high-speed data transmission. With data rates reaching impressive levels, this module ensures that network users experience minimal latency and swift access to online resources, enhancing overall network performance.

Wide Area Network Interface Card (WIC) Compatibility

The integration of the HWIC-1ADSL as a Wide Area Network Interface Card (WIC) expansion module adds versatility to its functionality. WICs are interface cards that provide network connectivity to Cisco routers, and the HWIC-1ADSL seamlessly aligns with this standard, further expanding the capabilities of Cisco networking devices.

Efficient Bandwidth Management

In the realm of networking, efficient bandwidth management is paramount. The HWIC-1ADSL incorporates advanced features for bandwidth optimization, allowing network administrators to allocate resources judiciously and prioritize critical applications, thereby enhancing the overall user experience.

Applications and Use CasesSmall to Medium-Sized Businesses (SMBs)

The HWIC-1ADSL finds its niche in small to medium-sized business environments where a balance of cost-effectiveness and high-performance networking is crucial. Its single-port design makes it suitable for SMBs with moderate data transmission requirements, providing an affordable yet robust solution.

Remote Office Connectivity

For organizations with remote offices, the HWIC-1ADSL proves to be a reliable choice for establishing connectivity over ADSL networks. The module's compatibility with WIC ensures seamless integration with Cisco routers commonly used in remote office setups, promoting efficient and secure data transfer.

Internet Service Providers (ISPs)

Internet Service Providers can harness the power of the HWIC-1ADSL to deliver high-speed internet services to residential and business customers. The module's ability to handle asymmetric data transmission aligns with the typical usage patterns of end-users, making it an optimal choice for ISPs seeking to provide a reliable and responsive internet experience.

Benefits of HWIC-1ADSL Integration:
  • Enhanced Internet Access: By leveraging ADSL technology, the HWIC-1ADSL provides enhanced internet access with high-speed data transmission. This is especially beneficial for users who require fast and reliable internet connections for activities such as streaming, online gaming, and video conferencing.
  • Cost-Effective Solution: The HWIC-1ADSL offers a cost-effective solution for expanding network capabilities. Its single-port design and compatibility with existing infrastructure contribute to a streamlined and budget-friendly upgrade.
  • Versatility in Deployment: The versatility of the HWIC-1ADSL makes it suitable for deployment in various networking environments. Whether in small businesses, enterprises, or service provider networks, this expansion module adapts to diverse scenarios.
  • Improved Network Performance: Integrating the HWIC-1ADSL results in improved overall network performance. The high-speed connectivity it provides contributes to reduced latency, faster data transfer rates, and an overall more responsive network.
Resiliency and High Availability

The Cisco HWIC-1ADSL1-Port Wan Interface Card is a high-performance, high-availability solution for connecting to an Asymmetric Digital Subscriber Line (ADSL) network. It provides a single ADSL port for connecting to an ADSL service provider and is compatible with Cisco routers and switches.


  • The product 1-Port card supports multiple line codes and modulation schemes, including G.dmt, G.lite, and G.hs. This allows for automatic line rate negotiation and fallback in case of line degradation, ensuring a stable and resilient connection.
  • The card also supports Loop Diagnostics and Remote Failure Indication, which allows for quick identification and resolution of any line issues.
  • The card supports ATM, PPPoA, and PPPoE protocols, providing multiple options for connection and redundancy.

High Availability:

  • The model of the 1-Port card supports load balancing and failover capabilities, allowing for multiple connections to different service providers for redundancy and increased uptime.
  • The card also supports Link Fault Signaling, which allows for fast detection and recovery of any link failures.
  • The card is designed to be hot-swappable, allowing for easy replacement in case of failure without disrupting the network.

Compliant Standards

The Cisco HWIC-1ADSL1-Port WIC Expansion Module is a hardware interface card (HWIC) that provides one additional Asymmetric Digital Subscriber Line (ADSL) port for Cisco routers. This expansion module is compliant with various standards including:

  • ITU G.992.1 (G.dmt) and G.992.2 (G.lite) for DSL transmission
  • ITU G.992.3 (ADSL2) and G.992.4 (ADSL2+) for higher-speed DSL transmission
  • ITU G.992.5 (ADSL2+ MIMO) for enhanced DSL transmission using multiple inputs and outputs
  • ITU G.993.2 (VDSL2) for very high-speed DSL transmission over short distances
  • IEEE 802.3 for Ethernet standards

This compliance ensures that the 1-Port part module is compatible with a wide range of DSL technologies and can provide high-speed internet access to customers. Additionally, the module is compliant with the IEEE 802.3 standard, which ensures compatibility with Ethernet-based networks. This allows the router to connect to other devices in the network using standard Ethernet protocols.

Future Trends and Considerations

As technology continues to evolve, the networking landscape is expected to witness advancements that may impact the role and relevance of modules like the HWIC-1ADSL. Anticipating future trends, such as the proliferation of fiber-optic networks and the emergence of 5G technologies, will guide organizations in making informed decisions regarding their networking infrastructure.

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-not), 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

In general, the HWIC-1ADSL is a vital component in networking technology, providing a reliable solution for high-speed internet connectivity. Its single-port design, high-speed data transmission capabilities, and WIC expansion module make it a versatile choice for various applications, from home networking to small to medium-sized businesses. Understanding its features, installation process, applications, advantages, and limitations empowers users to make informed decisions when incorporating the HWIC-1ADSL into their networking infrastructure. Regular maintenance and troubleshooting practices further ensure the sustained performance and longevity of this essential networking module.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Here, you can check more available conditions of your desired product HWIC-1ADSL at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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