Chapter 4 Removal and Replacement Procedures

Removing and Installing the DC-Input Power Supply

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuits. To ensure that all power is removed, locate the circuit breakers or fuses on the DC power lines that service the DC circuits. Turn OFF the DC power line circuit breakers and remove the DC power line fuses. Statement 322

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

Required Tools

To perform this procedure, you will need a Number 2 Phillips screwdriver.

Removing the DC-Input Power Supply

To remove a DC-input power supply, follow these steps:

Step 1 Set the power switch to the off (0) position on the power supply that you are removing. Step 2 Verify that power is off to the DC circuit that feeds the power supply that you are removing.

As an added precaution, place the appropriate safety flag and lockout devices at the source power circuit breaker, or place a piece of adhesive tape over the circuit breaker handle to prevent accidental power restoration while you are working on the circuit.

Step 3 Remove the clear plastic terminal block cover from the power supply terminal block.

Step 4 Disconnect the DC-input cables from the power supply terminal block in this order (See Figure 4-1, top view):

1.Positive (+) source DC cable from the positive (+) terminal

2.Negative (–) source DC cable from the negative (–) terminal

3.Ground cable from the ground terminal

Step 5 Loosen the two captive installation screws on the power supply.

Step 6 Grasp the power supply handle with one hand, and slide the power supply halfway out of the chassis. Place your other hand underneath the power supply, as shown in Figure 4-1(bottom view), and slide the power supply completely out of the chassis. Set the power supply aside.

Note The DC power supply is equipped with an EMI gasket on the top, bottom, and sides (on the front edge) of the power supply. When sliding the power supply into or out of the power supply bay, be careful not to damage the EMI gaskets.

Step 7 If the power supply bay is to remain empty, install a blank faceplate (Cisco part number 700-20988-xx) over the opening, and secure it with the two captive installation screws.

Cisco ME 6500 Series Ethernet Switch Installation Guide

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Cisco Systems ME 6500 manual Required Tools, Removing the DC-Input Power Supply

ME 6500 specifications

The Cisco Systems ME 6500 is a sophisticated Ethernet switch designed to cater to the demanding needs of service providers and large enterprises. Engineered to deliver high performance and reliability, the ME 6500 series is ideal for both metro Ethernet applications and data center environments. One of its standout features is the ability to handle massive bandwidth, making it suitable for high-capacity networks. The switch supports a range of Ethernet services that facilitate seamless connectivity and network expansion.

At the core of the ME 6500 is its ability to provide Layer 2 and Layer 3 functionalities, which allows for flexibility in network design. This dual-layer capability enhances the switch's efficiency in managing traffic and ensures optimal forwarding of data packets. In addition, the ME 6500 series supports a wide range of Ethernet interfaces, including 10 Gigabit and 1 Gigabit Ethernet ports, which are essential for accommodating diverse bandwidth requirements.

One of the defining characteristics of the Cisco ME 6500 is its scalability. It supports up to 192 10 Gigabit Ethernet ports within a single chassis, enabling organizations to expand their network without compromising performance. Furthermore, the switch includes advanced Quality of Service (QoS) features that allow for traffic prioritization, which is crucial for maintaining the performance of voice and video services across the network.

The ME 6500 switch is also equipped with robust security features, including Access Control Lists (ACLs) and secure management protocols. These features protect sensitive data as it traverses the network, ensuring that only authorized users have access to critical resources. Management of the switch is simplified through Cisco’s management tools, allowing network administrators to monitor, configure, and troubleshoot the device efficiently.

Additionally, the switch supports various redundancy protocols, including Rapid Spanning Tree Protocol (RSTP) and Link Aggregation Control Protocol (LACP), ensuring high availability and minimizing downtime.

Overall, the Cisco ME 6500 is a powerful and versatile solution that meets the heavy demands of modern network environments, delivering outstanding performance, security, and scalability for both service providers and large enterprises. Its advanced features make it a go-to choice for organizations looking to future-proof their networking infrastructure.