Cisco HWIC-8A/S-232= Expansion Module
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HWIC-8A/S-232= Cisco 8 Ports WAN Interface Card Refurbished

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Short Description:
HWIC-8A/S-232= 8 Ports Asynchronous/Synchronous High-Speed Wide Area Network Interface Card | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

More Information for the Cisco HWIC-8A/S-232= 8 Port Expansion Module

The Cisco HWIC-8A/S-232= is a powerful networking device designed to enhance Wide Area Network (WAN) connectivity by providing 8 ports for asynchronous/synchronous communication. In this detailed explanation, we will delve into the features, specifications, and applications of the Cisco HWIC-8A/S-232=, shedding light on its significance in modern networking environments.

Understanding the Basics

The acronym HWIC stands for High-Speed WAN Interface Card, a term used to describe expansion cards that can be added to Cisco routers. The HWIC-8A/S-232=, in particular, is equipped with 8 ports, allowing for both asynchronous and synchronous communication. This dual functionality makes it a versatile choice for various networking scenarios.

Asynchronous vs. Synchronous Communication

Before delving into the features of the Cisco HWIC-8A/S-232=, it's essential to understand the difference between asynchronous and synchronous communication.

Asynchronous communication involves data transfer without a fixed-time relationship between the sender and receiver. It is commonly used for applications where the data transfer rate may vary, making it suitable for tasks like file transfers and email.

On the other hand, synchronous communication maintains a constant time relationship between the sender and receiver. This is crucial for applications that require precise timing, such as voice and video communication.

Features of Cisco HWIC-8A/S-232=

  • 8 Ports for Enhanced Connectivity: The primary feature of the Cisco HWIC-8A/S-232= is its 8 ports, providing ample connectivity options. This allows for the simultaneous handling of multiple communication channels, making it an ideal solution for businesses with diverse networking needs.
  • Asynchronous Support: With support for asynchronous communication, the HWIC-8A/S-232= can facilitate tasks like file transfers and email exchanges where data transfer rates may vary. This flexibility is crucial in environments where different types of data need to be efficiently managed.
  • Synchronous Support: The inclusion of synchronous support makes this interface card suitable for applications that demand precise timing, such as voice and video communication. This ensures a stable and reliable connection for time-sensitive tasks.
  • High-Speed Data Transfer: The term "High-Speed" in the device's name emphasizes its capability to handle data transfer at elevated rates. This is particularly advantageous for organizations dealing with large datasets or requiring rapid data exchange between locations.
  • Wide Area Network (WAN) Interface: As a WAN interface card, the HWIC-8A/S-232= is specifically designed to operate in wide-area network environments. This makes it an excellent choice for connecting networks across different geographical locations, providing seamless communication.

Applications of Cisco HWIC-8A/S-232=

  • Enterprise Networking: In large enterprises with diverse networking requirements, the Cisco HWIC-8A/S-232= can play a crucial role in facilitating communication between various departments. Its 8 ports ensure that multiple tasks can be handled simultaneously without compromising on speed or reliability.
  • Telecommunication Services: Telecommunication service providers can benefit from the HWIC-8A/S-232= in delivering high-speed and reliable connectivity to their customers. The synchronous support makes it suitable for voice and video communication, ensuring a seamless experience for end-users.
  • Data Centers: Data centers, dealing with massive amounts of data, can leverage the high-speed data transfer capabilities of the HWIC-8A/S-232=. The asynchronous support is beneficial for handling diverse data types, making it a versatile solution for data-intensive environments.
  • Remote Offices and Branches: Organizations with remote offices or branches can deploy the HWIC-8A/S-232= to establish robust connections between different locations. The wide-area network interface ensures efficient communication, enabling seamless collaboration across the organization.
  • Critical Infrastructure: In scenarios where precise timing is crucial, such as in critical infrastructure systems, the synchronous support of the HWIC-8A/S-232= becomes invaluable. This can include applications in energy grids, transportation systems, and other essential services.

Extraordinary Performance

The HWIC-8A/S-232= Cisco hardware interface card (HWIC) is designed to provide high performance and reliability for serial communication over EIA-232 connections.

In terms of performance, the card supports a data transfer rate of up to 230.4 Kbps per port and supports both asynchronous and synchronous serial communication, which means it can handle both types of serial data transfer. It also supports both DTE (data terminal equipment) and DCE (data communication equipment) interfaces, allowing it to connect to a wide range of serial devices. Additionally, the card supports various serial protocols, including HDLC, PPP, and Frame Relay, providing compatibility with a wide range of devices.

In terms of reliability, the card is designed with robust components and undergoes rigorous testing to ensure it can withstand harsh environmental conditions and meet the demands of high-traffic networks. It also features a hot-swappable design, which allows for easy replacement in the event of a failure, minimizing network downtime.

Additionally, the card supports the Cisco IOS software, which allows for easy management and configuration of the serial connections. It also supports the Cisco Discovery Protocol (CDP), which allows the router to automatically discover and configure connected devices, this improves the overall reliability of the network.

Compliant Standards

The model Cisco hardware interface card is compliant with several standards to ensure compatibility and interoperability with other network equipment. Some of the key standards that the card complies with are:

  • EIA-232: This is the standard for serial communication over a DB-25 or DB-9 connector and the HWIC-8A/S-232= card provides 8 EIA-232 ports.
  • EIA/TIA-604: This standard defines the characteristics of the physical layer interface for digital carrier systems and terminal equipment, the card is compliant with this standard, which ensures the compatibility of the card with other devices that also comply with this standard.
  • RoHS (Restriction of Hazardous Substances): This is a European Union directive that regulates the use of hazardous substances in electronic equipment. This model card is compliant with RoHS, which means it does not contain any hazardous substances that are harmful to the environment.
  • Cisco IOS software: The card is compliant with the Cisco IOS software, which allows for easy management and configuration of the serial connections, and the Cisco Discovery Protocol (CDP), which allows the router to automatically discover and configure connected devices.
  • MSA (Multi-Source Agreement): This is an industry agreement that ensures that the model card is compatible with other vendors' equipment and with other similar cards from Cisco.

General Information about this Cisco HWIC-8A/S-232=

  • Manufacturer: Cisco
  • Model Number or SKU# HWIC-8A/S-232=
  • Product Type WAN Interface Card (WIC)-Expansion Module

Technical Specifications of WAN Interface Card (WIC)

  • Application/Usage: Wide Area Network
  • Form Factor: Plug-in module
  • Interface (Bus) Type: HWIC
  • Number of Ports: 8 Ports
  • Connectivity Technology: Wired
  • Data Link Protocol: RS-232
  • Data Transfer Rate: 256 KBPS
  • Network/Transport Protocol: TCP/IP
  • Interfaces/Ports of 8 Ports WIC Expansion Module
    • Interfaces/Ports Details: 2 x Connector
    • Interfaces/Ports Details: 8 x Port Asynchronous/Synchronous Serial


  • Interfaces: 8 x Serial - asynchronous/synchronous
  • Compatible Slots: 1 x HWIC

Management & Protocols

  • Connectivity Technology: Wired
  • Data Link Protocol: RS-232
  • Data Transfer Rate: 256 Kbps
  • Network/Transport Protocol: TCP/IP

Miscellaneous of WAN Interface Card

  • Additional Information:
    • Spare Product
    • This module uses two high-density 4-port connectors
    • Serial Protocol: EIA-232
    • Lead Manipulation
    • Network Clock Synchronization

Compatibility Information

  • Compatible with various Cisco models, including but not limited to:
    • Cisco 1801, 1802, 1803, 1811W, 1812W, 1841, 1921, 1941, 2801, 2811, 2821, 2851, 2911, 2921, 2951, 3825, 3845, 3925, 3925E, 3945, 3945E
    • Bundles with different specifications such as Security Bundle, Voice Bundle, WAN Optimization Bundle, and more.
Environmental Parameters
  • Min Operating Temperature: 32°F
  • Max Operating Temperature: 104°F
  • Humidity Range Operating: 10 - 90% (non-condensing)

Finally, the Cisco HWIC-8A/S-232= is a versatile and powerful solution for enhancing Wide Area Network connectivity. With its 8 ports supporting both asynchronous and synchronous communication, this interface card caters to a wide range of networking needs. From large enterprises to telecommunication services and critical infrastructure, the HWIC-8A/S-232= proves its worth in diverse applications.

Understanding its features, such as high-speed data transfer and WAN interface support, enables organizations to make informed decisions about incorporating this technology into their networking infrastructure. Moreover, the installation and configuration steps outlined ensure a smooth integration process, allowing users to harness the full potential of the Cisco HWIC-8A/S-232= for efficient and reliable network communication.

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.

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