Cisco HWIC-1T

Cisco HWIC-1T Overview

The Cisco 1-Port Serial WAN Interface Card (HWIC-1T) is a high-performance WAN interface card designed for Cisco’s Integrated Services Routers (ISR) in the 1800, 1900, 2800, 2900, 3800, and 3900 Series. This module provides a single high-speed serial port, enabling flexible connectivity for diverse wide-area network (WAN) environments. It supports both synchronous and asynchronous serial connections, making it versatile for a range of network applications, such as branch connectivity, legacy protocol integration, and remote site management.
The HWIC-1T card ensures secure data transmission, incorporating Cisco’s advanced encryption standards for WAN links. Additionally, it allows seamless integration with other Cisco modules, supporting modular growth within a unified network architecture. This flexibility is valuable for organizations that require scalability and simplified management across distributed network locations.

Key Features of Cisco HWIC-1T and Related HWICs

1. High-Speed Serial Connectivity:
   • The HWIC-1T supports high-speed serial interfaces, ideal for T1/E1 leased lines and Frame Relay networks. These interfaces connect branch offices and enable communication between distributed networks.
   • With synchronous and asynchronous support, these cards handle both data-oriented WAN protocols (such as PPP and HDLC) and legacy protocols.
2. Application Support:
   • WAN Access: HWIC-1T provides WAN access for connection to service provider networks, making it essential for enterprise infrastructures.
   • Legacy Protocol Transport: Many enterprises still use legacy protocols like X.25 and Frame Relay. HWIC-1T enables these protocols to coexist with modern systems.
   • Console Server: This HWIC supports console server applications, allowing remote management through serial connections, which is useful for environments with minimal local IT staff.
   • Dial Access Server: As a dial-access solution, HWIC-1T provides remote network access for out-of-band management in case of primary link failure.
3. Flexible Configuration:
   • Cisco HWICs, including HWIC-1T, allow modular configurations where various HWICs can combine within a router to create tailored solutions. This flexibility lets network administrators meet needs like remote management, low-density WAN aggregation, and high-port-density support.
   • HWIC modules are mix-and-match, forming cost-effective, scalable configurations suitable for businesses of all sizes.

Summary

The Cisco HWIC-1T and other serial HWICs enhance connectivity for Cisco ISR series routers, supporting WAN access, legacy protocol transport, remote management, and dial access. These options enable enterprises to build scalable, reliable, and cost-effective networks supporting both current and legacy systems.

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