Replace an FPC in an M40 Router

4.Take the FPC offline by pressing and holding its offline button for 5 seconds or until the green OK LED next to the button goes out. The offline button for each FPC is located on the craft interface just below the FPC slot.

5.Disconnect the cables from the PICs on the FPC. If a PIC uses fiber-optic cable, immediately cover each transceiver and the end of each cable with a rubber safety cap. Arrange the disconnected cables in the cable management system at the top of the chassis front, to prevent the cables from developing stress points.

Do not look directly into the ends of fiber-optic cables or into the transceivers on the PIC faceplate. Single-mode fiber-optic cable and the PICs that use it (such as ATM and SONET/SDH interfaces) emit laser light that can damage your eyes.

Do not leave a transceiver uncovered. The safety cap keeps the port clean and prevents accidental exposure to laser light.

Avoid bending fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.

6.Unscrew the thumbscrews at the top and bottom of the FPC.

7.Pull the ends of the extractor clips, which are adjacent to the thumbscrews, away from the face of the FPC. See Figure 9.

8.Grasp the FPC with both hands and slide it about halfway out of the chassis.

9.Place one hand underneath the FPC to support it, and slide it completely out of the chassis. Set the FPC on the antistatic foam mat prepared in Step 1, component-side down and with the PIC faceplates facing you.

To avoid damaging any components, use extra care when laying the FPC component-side down on the antistatic mat, particularly if the mat is not made of foam.

Do not stack the FPC on top of or under any other component.

10.If you are removing or replacing PICs on the FPC, see the instructions in the M40 Internet Router Hardware Guide.

•

FPC Installation Instructions	13

M40e, M40 specifications

Juniper Networks M40 and M40e are high-performance, modular routers designed to provide scalability, flexibility, and advanced capabilities for service providers and large enterprises. These platforms have made a significant impact in the networking industry due to their robust architecture and rich feature set.

The Juniper M40 was introduced as a key player in the routing landscape, emphasizing performance and reliability. It is based on the innovative Junos operating system, which enables operators to manage network resources effectively. The M40 router features a flexible modular design, allowing for the installation of various interface cards that support multiple protocols and speeds. This versatility is crucial for adapting to evolving network demands.

One of the standout features of the M40 is its high throughput capability, supporting up to 40 Gbps with exceptional performance under heavy loads. This is complemented by advanced queuing and scheduling options that ensure efficient traffic management. The M40 also implements sophisticated routing protocols, such as BGP, OSPF, and MPLS, enabling service providers to enhance their network infrastructure with robust routing features.

The M40e variant enhances the original model with additional features and improved performance metrics. It is built for even greater scalability, supporting more interface types and higher capacities. The enhanced hardware of the M40e allows it to process data packets with lower latency, ensuring optimized performance for real-time applications such as voice and video.

Both M40 and M40e routers utilize a redundant architecture, providing high availability and fault tolerance. This is crucial for mission-critical applications where downtime can lead to significant operational disruptions and financial losses. The routers also boast advanced security features, including support for IPsec and various access control mechanisms, ensuring data integrity and confidentiality across the network.

In summary, the Juniper Networks M40 and M40e routers represent a significant evolution in networking technology. Their modular architecture, high throughput capabilities, advanced routing protocols, and robust security features make them ideal choices for service providers and enterprises looking to build resilient and high-performance networks. With their proven reliability and performance, these routers continue to serve as a foundation for modern networking solutions.