Chapter 11 Installing and Upgrading Internal Modules in Cisco 1800 Series Routers (Modular)

Modules Internal to the Cisco 1841 Router

Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. Statement 1026

Modules Internal to the Cisco 1841 Router

This section tells how to install a small outline dual in-line memory module (SODIMM) and an advanced integration module (AIM) in the Cisco 1841 router. It contains the following subsections:

•Opening the Chassis, page 11-2

•Locating Modules, page 11-4

•Installing a SODIMM, page 11-5

•Installing an AIM, page 11-6

•Closing the Chassis, page 11-11

All the module replacement procedures in this section require removal of the chassis cover. Before you perform any of the module replacement procedures, disconnect the power and remove the cover as described in the “Opening the Chassis” section on page 11-2. After you complete the module replacement procedures, install the chassis cover as described in the “Closing the Chassis” section on page 11-11.

Opening the Chassis

To open the chassis, follow these steps. A number 1 Phillips screw driver is required.

Step 1 Make sure that the router is turned off and is disconnected from AC power.

Step 2 Turn the router upside down, and rest the top of the router on a flat surface.

Step 3 Use the Phillips screwdriver to remove the screw that holds the top and bottom of the chassis together, as shown in Figure 11-1.

Cisco 1800 Series Routers (Modular) Hardware Installation Guide

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Cisco Systems CISCO1841-HSEC/K9-RF manual Modules Internal to the Cisco 1841 Router, Opening the Chassis, 11-2
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CISCO1841-HSEC/K9-RF specifications

The Cisco Systems CISCO1841-HSEC/K9-RF is a versatile and robust router designed to meet the demands of small to medium-sized businesses and branch offices. This model is part of the Cisco 1800 Series Integrated Services Routers, which are known for their performance, security features, and scalability, making them ideal for organizations seeking to enhance their network infrastructure.

One of the main features of the CISCO1841-HSEC/K9 is its modular architecture. This design allows businesses to customize and expand their networks according to changing needs by adding various modules and interfaces. The router supports multiple WAN interfaces, which include serial, Ethernet, and DSL, providing flexible connectivity options to accommodate various networking scenarios.

The CISCO1841-HSEC/K9 also boasts an integrated security architecture. This router is equipped with advanced security features, including firewall capabilities, VPN support, and intrusion prevention systems. These technologies ensure that data is protected while being transmitted across the network. The built-in security features help organizations safeguard sensitive information against potential threats and cyberattacks.

In terms of performance, the CISCO1841-HSEC/K9 is powered by a high-speed processor and dynamic routing capabilities, which allow it to efficiently handle high volumes of traffic without compromising performance. The router supports various routing protocols, including EIGRP, OSPF, and BGP, facilitating seamless data flow and efficient route management.

Another noteworthy characteristic of the CISCO1841-HSEC/K9 is its support for voice and video services. This capability enables businesses to deploy unified communications applications, such as VoIP and video conferencing, enhancing collaboration among team members and improving overall productivity.

Moreover, the router is designed for easy management and monitoring. Cisco’s IOS software provides a user-friendly interface, allowing network administrators to configure, operate, and troubleshoot the network with ease. The router also supports Cisco’s Smart Install feature for simplified deployment and management.

In summary, the Cisco Systems CISCO1841-HSEC/K9-RF is a powerful and adaptable router that combines security, flexibility, and performance. Its modular design, robust security features, support for various routing protocols, and capabilities for multimedia applications make it a compelling choice for businesses looking to enhance their network infrastructure while addressing current and future demands.
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