Cisco Systems 3600 Series manual Replacing CompactFlash Memory Cards, Installing Sdram DIMMs

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Upgrading System Memory in Cisco 3725 Routers

Installing SDRAM DIMMs

To install SDRAM DIMMs, 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 On the mainboard, locate the SDRAM DIMM sockets. (See Figure 2.)

Caution Handle the DIMM by the nonconnector edges only; do not press on the center. Handle carefully. DIMMs are ESD-sensitive components and can be damaged by mishandling.

Step 3 Insert the DIMM, ensuring that the polarization notches align correctly with the socket. Gently push into place until the socket guideposts fit through the alignment holes and the latches on both sides snap into place. (See Figure 4.)

Caution It is normal to feel some resistance when installing a DIMM, but do not use excessive force and do not touch the surface components.

Step 4 Ensure that each DIMM is straight (perpendicular to the socket).

Step 5 If necessary, repeat Step 3 and Step 4 to install a second DIMM.

Step 6 Proceed to either of the following as appropriate:

•“Replacing CompactFlash Memory Cards” section on page 15

•“Replacing the Cisco 3725 Cover” section on page 16

Replacing CompactFlash Memory Cards

To replace CompactFlash memory cards, follow these steps:

Step 1 Refer to Installing and Formatting Cisco 2691, Cisco 3631, and Cisco 3700 Series CompactFlash Memory Cards, available online at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3700/hw_inst/hw_notes/ index.htm

Step 2 Proceed to the “Replacing the Cisco 3725 Cover” section on page 16.

Upgrading System Memory in Cisco 3700 Series Routers

 

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Contents Upgrading System Memory in Cisco 3700 Series Routers Dram Memory CapacitiesDynamic Memory Memory ConfigurationsCompact Flash Memory Safety RecommendationsWaarschuwing Belangrijke Veiligheidsinstructies Safety WarningsWarnung Wichtige Sicherheitsanweisungen OBS! Spara Dessa Anvisningar OL-5423-02 Safety with Electricity Tools and Equipment Needed Upgrading System Memory in Cisco 3725 RoutersPreventing Electrostatic Discharge Damage Removing the Cisco 3725 Router Cover Sdram Dimm Location and Orientation Replacing Cisco 3725 SdramSdramm Dimm Locations in the Cisco 3725 Router Removing Sdram DIMMsProceed to the Installing Sdram DIMMs section on Replacing CompactFlash Memory Cards Installing Sdram DIMMsReplacing the Cover on a Cisco 3725 Router Replacing the Cisco 3725 CoverUpgrading System Memory in Cisco 3745 Routers Replacing Connections to the RouterRemoving the Cisco 3745 Mainboard Tray Captive Screws on a Cisco 3745 Router Removing the Front Panel from a Cisco 3745 Router Sdram Sodimm Location and Orientation Replacing Cisco 3745 SdramSdramm Sodimm Location in the Cisco 3745 Router Removing Sdram SODIMMsInstalling Sdram SODIMMs Proceed to Replacing the Cisco 3745 Mainboard section on Inserting the Mainboard into a Cisco 3745 Router Replacing the Cisco 3745 MainboardInstalling the Front Panel on a Cisco 3745 Router Reinstall the chassis on a rack or desktop Using the xmodem Command Obtaining DocumentationCisco.com Cisco Technical Support Website Documentation FeedbackObtaining Technical Assistance Ordering DocumentationSubmitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information Obtaining Additional Publications and Information

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.
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