Preface

Obtaining Documentation, Obtaining Support, and Security Guidelines

•Cisco 7200 series routers:

–For an online directory to quickly access documents for Cisco 7200 series routers, refer to the Cisco 7200 Series Routers Documentation Roadmap at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps341/products_documentation_roadmap09 186a00801c0915.html

–For hardware installation and configuration information (including the Cisco 7206 or Cisco 7206VXR as a router shelf in a Cisco AS5800 Universal Access Server), refer to the online installation and configuration guide and quick start for your Cisco 7200 series router.

–For port adapter hardware and memory configuration guidelines, refer to the Cisco 7200 Series Port Adapter Hardware Configuration Guidelines.

–For information on network processing engines or network services engines, refer to the Network Processing Engine and Network Services Engine Installation and Configuration document.

•Cisco 7200 VXR routers:

–For an online directory to quickly access documents for Cisco 7200 VXR routers, refer to the Cisco 7200 Series Routers Documentation Roadmap at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps341/products_documentation_roadmap09 186a00801c0915.html

–For hardware installation and maintenance information, refer to the Cisco 7200 VXR Installation and Configuration Guide or the Cisco 7200 VXR Routers Quick Start Guide.

•Cisco 7301 router:

–For an online directory to quickly access documents for the Cisco 7301 router, refer to the Cisco 7301 Internet Router Documentation Roadmap at the following URL:

http://www.cisco.com/en/US/products/hw/routers/ps352/products_documentation_roadmap09 186a00801c0f21.html

–For hardware installation and maintenance information, refer to the Cisco 7301 Installation and Configuration Guide or the Cisco 7301 Router Quick Start Guide.

•For international agency compliance, safety, and statutory information for WAN interfaces, refer to the following documents. Use the documentation roadmap for your particular router to link to the appropriate documents for your router:

–Regulatory Compliance and Safety Information for Cisco 7100 Series VPN Routers

–Regulatory Compliance and Safety Information for the Cisco 7200 Series Routers

–Regulatory Compliance and Safety Information for the Cisco 7301 Internet Router

Obtaining Documentation, Obtaining Support, and Security Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised technical documentation at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

PA-4B-U Basic Rate Interface Port Adapter Installation and Configuration

 

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PA-4B-U specifications

Cisco Systems PA-4B-U is a high-performance modular interface card designed for use with Cisco routers, facilitating enhanced connectivity and flexibility within networking environments. This advanced interface card is specifically engineered to support a multitude of applications, making it an ideal choice for enterprises that require reliable and efficient network solutions.

One of the standout features of the PA-4B-U is its capability to accommodate four T1/E1 connections. This allows organizations to utilize multiple lines for improved redundancy and increased bandwidth, essential for handling the growing demands of modern data communications. The card supports both channelized and unchannelized configurations, offering versatility in how bandwidth is allocated and managed, which is crucial for businesses that require scalable solutions.

In terms of technology, the PA-4B-U is built with Cisco's renowned quality and innovation. It integrates seamlessly with Cisco’s IOS software, enabling advanced features such as intelligent traffic handling, advanced security measures, and comprehensive monitoring capabilities. This integration allows for efficient network management, ensuring that administrators can maintain optimal performance while also mitigating potential threats.

Another key characteristic of the PA-4B-U is its robustness and reliability. Designed for high availability, the card can operate in various environmental conditions, making it suitable for deployment in diverse physical locations. Its modular design also means that organizations can easily expand their network capabilities by adding or replacing cards as needed, without significant downtime or disruption.

Furthermore, the PA-4B-U supports advanced error correction and performance monitoring. This feature is essential in maintaining high-quality voice and data transmission, particularly in environments where reliability is critical, such as in VoIP services or mission-critical applications.

Overall, Cisco Systems PA-4B-U represents a blend of performance, flexibility, and advanced technology, making it a worthwhile investment for businesses looking to enhance their networking capabilities. Its ability to scale, paired with robust features and exceptional reliability, positions the PA-4B-U as a vital component in modern network infrastructures. As enterprises continue to navigate the complexities of digital transformation, solutions like the PA-4B-U will be integral in supporting their connectivity needs.
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