Replacing Connections to the Router

Upgrading System Memory in Cisco 3745 Routers

To make final connections to the router, follow these steps:

Warning Read the installation instructions before connecting the system to the power source. Statement 1004

Step 1 Replace all network connections.

Step 2 Do one of the following:

•AC-powered router: Plug the power cord into a 3-terminal, single-phase power source that provides power within the acceptable range (100 to 240 VAC, 50 to 60 Hz).

•DC-powered router: Remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position.

Step 3 Turn on the power switch. The power LED on the front panel of the router should come on.

Step 4 Check the Sys LED on the right side of the front panel to verify that it goes on after a few seconds delay when booting.

Step 5 If you have problems, see the “Obtaining Technical Assistance” section on page 28.

Step 6 Proceed to the “Recovering Compact Flash Memory and System Images” section on page 27.

Upgrading System Memory in Cisco 3745 Routers

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.

Statement 1

Removing the Cisco 3745 Mainboard Tray

To remove the mainboard tray, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin. Connect the equipment end of the wrist strap to the metal back plate of the chassis, avoiding contact with the connectors.

Step 2 Turn off the power, but do not unplug the power cord.

Caution The Cisco 3745 router can have more than one power supply. Be sure that all power supplies are powered off and that all LEDs are dark.

Step 3 Place the router on a flat surface so that the front panel faces you, and open the small access door at the right-hand edge of the front panel.

Step 4 Loosen the two captive screws located behind the access door. (See Figure 6.)

Upgrading System Memory in Cisco 3700 Series Routers

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3745 Series, 3725 Series, 3600 Series specifications

Cisco Systems has a long-standing reputation in the networking industry, and its series of routers, notably the 3725, 3600, and 3745, epitomize the company’s commitment to delivering high-performance solutions. This article delves into the main features, technologies, and characteristics that define these router series.

The Cisco 3725 Series, introduced as part of the 3700 series, is designed to offer a reliable platform for medium-sized enterprises. It supports various network functionality, including advanced routing protocols such as RIP, EIGRP, and BGP. The 3725 features a modular design that allows for easy scalability and customization. With support for voice, video, and data applications, it also enables various WAN interfaces, including T1/E1, DSL, and Frame Relay. The integration of security features, such as firewall capabilities and VPN support, makes the 3725 a robust choice for organizations looking to enhance their network security.

In the same family, the Cisco 3600 Series serves as a versatile option suited for branch offices and enterprise environments. Renowned for its flexibility, the 3600 supports numerous networking modules, making it adaptable to changing needs. Its high-density interface options, including serial, Ethernet, and ISDN interfaces, allow for seamless connectivity to different types of networks. Additionally, the 3600 provides strong support for voice-over-IP (VoIP) applications, thus making it popular among businesses that wish to unify their communication services.

The Cisco 3745 Series builds upon the strengths of its predecessors with increased performance and additional features. It integrates VoIP capabilities, ensuring a high-quality experience for voice communications over data networks. With enhanced encryption options and advanced security measures, the 3745 is tailored for organizations with heightened security requirements. The router supports a wide range of applications, including web hosting and remote access services. Furthermore, its ability to incorporate various modules, such as interface cards and voice cards, results in a highly customizable networking solution.

Overall, Cisco's 3725, 3600, and 3745 Series routers exemplify the balance of performance, reliability, and flexibility. Designed to meet the demands of medium and large enterprises, these routers provide essential features like modularity, scalable interfaces, strong security, and support for various applications. Each series offers unique advantages, allowing organizations to select the most suitable solution based on their specific needs. As networking technology continues to evolve, these routers remain relevant, helping businesses adapt to changing landscapes.

Cisco Systems 3745 Series, 3600 Series, 3725 Series Upgrading System Memory in Cisco 3745 Routers

Models: 3745 Series 3725 Series 3600 Series