Installing the DC Power Supply in the Switch

Chapter 3 Power Supply and Fan Module Installation

Installing a DC-Power Supply

To remove and install a DC-powered power-supply module, follow these steps:

Step 1 Turn off power at the DC circuits. To ensure that power is removed from the DC circuits, locate the circuit breakers for the DC circuits, switch the circuit breakers to the OFF position, and tape the circuit-breaker switches in the OFF position.

Step 2 Use a number-2 Phillips screwdriver to remove the plastic safety cover from the power supply terminal blocks.

Step 3 Use a number-1 Phillips screwdriver to remove the DC-input power wires from the power terminals.

Step 4 For 24- and 48-port switches, use a Phillips screwdriver to loosen the two captive screws at the lower edge that secure the power-supply module to the switch chassis.

For Catalyst 3560E-12D and 3560E-12SD switches, use a Phillips screwdriver to loosen the captive screw at the left edge of the power-supply module.

Step 5 Remove the power-supply module from the power slot by pulling on the extraction handle.

Step 6 Insert the new power supply into the power-supply slot, and gently push it into the slot (Figure 3-8and Figure 3-9). When correctly inserted, the power supply is flush with the switch rear panel.

Figure 3-8 Inserting the DC-Power Supply in 24- and 48-Port Switches

FRU CC 265W

DC IN PS OK

A +

-INPUT 36 to -72V /12A

OUTPUT

265W MAX /22A

158123

Figure 3-9 Inserting the DC-Power Supply in Catalyst 3560E-12D and 3560E-12SD Switches (Catalyst 3560E-12D Switch Shown)

Input Output
OK	OK

202048

Step 7 For 24- and 48 port switches, align the two captive screws with the screw holes. Using a ratcheting torque screwdriver, torque each screw to 7 lbf-in. (112 ozf-in.).

For Catalyst 3560E-12D and 3560E-12SD switches, align the captive screw with the screw hole. Using a ratcheting torque screwdriver, torque the screw to 4 lbf-in. (64 ozf-in.)

Step 8 Connect the input power as described in the “Wiring the DC-Input Power Source” section.

Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide

3-8	OL-9774-03

3750-E, 3560-E specifications

Cisco Systems RPS (Redundant Power System) 2300, along with the 3750-E and 3560-E series switches, represents a significant technological advancement in enterprise networking. These devices are designed to enhance network reliability, scalability, and efficiency, making them integral components in modern enterprise infrastructures.

The Cisco RPS 2300 is designed to provide redundant power to specified Cisco switches, ensuring continuous operation during power disruptions. This system can support up to six devices, enhancing power reliability and reducing downtime. The modularity of the RPS 2300 contributes to its flexibility, allowing enterprises to customize their power solutions to suit their networking needs. It features dual power input, which provides an additional layer of failover capability, ensuring that even in the event of a primary power failure, the backup power system can take over seamlessly.

On the other hand, the Cisco 3750-E series switches are enterprise-class devices that offer a rich feature set to support advanced network functions. These switches come with Cisco’s StackWise technology, enabling users to stack up to nine switches in a single logical unit. This increases port density and simplifies network management. The 3750-E also supports Power over Ethernet (PoE), allowing the delivery of power directly to devices like IP phones and access points through the networking cables. The switch is equipped with high-performance Layer 3 routing capabilities, providing enhanced IP routing options for enterprise networks.

The Cisco 3560-E series switches share many of the advanced features found in the 3750-E models but focus more on providing comprehensive Layer 2 and Layer 3 capabilities in a compact design. The 3560-E series supports Cisco’s advanced security features, such as dynamic VLAN assignment and security group access control lists (ACLs). Additionally, these switches support IPv6, preparing enterprise networks for future growth and addressing requirements.

Both the 3750-E and 3560-E are equipped with energy-efficient technologies, including intelligent power management and support for Energy Efficient Ethernet (EEE), helping organizations reduce their environmental footprint and operating costs. The integration of Cisco’s robust IOS software ensures that these devices are equipped with the latest features, ensuring strong performance, security, and scalability.

In summary, Cisco's RPS 2300, 3750-E, and 3560-E series exemplify the company's commitment to delivering cutting-edge networking solutions that meet the demands of modern enterprises, focusing on reliability, advanced features, and energy efficiency.

Cisco Systems 3560-E, 3750-E manual Installing the DC Power Supply in the Switch

Models: 3750-E 3560-E