Appendix A Technical Specifications

Table A-2 Power Requirements for the Catalyst 3550-12T, 3550-12G, 3550-24, 3550-24-FX, and 3550-48 Switches

Power Requirements

AC input voltage

Catalyst 3550-12T and 3550-12G:

 

100 to 127/200 to 240 VAC (autoranging)

 

2 A/1 A, 50 to 60 Hz

 

 

 

 

 

 

 

 

Catalyst 3550-24, 3550-24-FX, and 3550-48:

 

100 to 127/200 to 240 VAC (autoranging)

 

1.6 A/0.9 A, 50 to 60 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltages for

Catalyst 3550-12T and 3550-12G: +12 V @13 A

RPS 300

Catalyst 3550-24:

 

 

+12 V

 

@8.5 A

 

 

 

 

 

Catalyst 3550-24-FX:

 

+12 V

 

@8.5 A

 

 

 

 

Catalyst 3550-48:

 

 

+12 V

 

@13 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Requirements

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltages for

 

 

+12 V

 

@25 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RPS 675

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power consumption

Catalyst 3550-12T and 3550-12G: 190 W, 650 Btus per hour

 

Catalyst 3550-24: 65 W, 222 Btus per hour

 

Catalyst 3550-24-FX: 85 W, 290 Btus per hour

 

Catalyst 3550-48: 110 W, 375 Btus per hour

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table A-3 Power Requirements for the Catalyst 3550-24PWR Switch

Power Requirements

AC input voltage

 

100 to 127 / 200 to 240 VAC (autoranging)

 

 

5.5 A / 2.8 A, 50 to 60 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltages for RPS 300

 

 

 

 

 

+12 V@7.5 A,

–48 V@7.8 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltages for RPS 675

 

 

 

 

 

+12 V

 

 

@25 A,

 

 

–48 V@7.8 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power consumption

 

525 W, 1790 Btus per hour

 

 

 

 

 

 

 

 

 

 

 

 

Table A-4 Power Requirements for the Catalyst 3550-24-DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Requirements

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power consumption

 

 

55 W, 190 Btus per hour

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltage

 

 

–36 to –72 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC input voltages for RPS 675

 

 

 

 

 

+12 V

 

 

@13 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wire gauge for power connection

 

 

18 AWG (6 AWG for protective earth)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Branch circuit protection

 

 

5 A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Catalyst 3550 Multilayer Switch Hardware Installation Guide

 

A-2

OL-6155-01

 

 

 

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Cisco Systems 3550 manual Power Requirements

3550 specifications

Cisco Systems 3550 is a series of enterprise-class multilayer switches that have gained popularity in both enterprise and service provider networks. Introduced in the early 2000s, the 3550 series was designed to meet the increasing demand for advanced networking capabilities, including Layer 2 and Layer 3 switching, making it suitable for various network environments.

A standout feature of the Cisco 3550 is its support for advanced Layer 3 switching capabilities. This means it can perform routing functions similar to traditional routers while maintaining the speed and efficiency of a switch. The 3550 facilitates IP routing, enabling enhanced communication among different subnets without the need for additional routing devices.

The Cisco 3550 series is equipped with a range of ports, typically providing up to 48 Ethernet 10/100 ports and optional Gigabit Ethernet ports, ensuring scalability and flexibility in various network designs. The switches support Power over Ethernet (PoE), allowing the delivery of electrical power through Ethernet cables to connected devices, such as IP phones and wireless access points, streamlining installations and reducing cable management complexity.

Quality of Service (QoS) is another essential feature of the Cisco 3550. The switch supports advanced QoS mechanisms, which provide the ability to prioritize traffic. This is crucial in environments where bandwidth is limited, as it ensures that time-sensitive applications, like VoIP and video conferencing, receive sufficient bandwidth to function optimally.

In terms of security, the Cisco 3550 includes features such as access control lists (ACLs), port security, and VLANs (Virtual Local Area Networks). These features help in segmenting network traffic and preventing unauthorized access to sensitive information, thereby enhancing network security.

The Cisco 3550 is highly regarded for its robustness and reliability, making it a suitable choice for various organizations looking to maintain high availability in their networking environments. Its management capabilities include support for Cisco's IOS software, which offers a command-line interface for configuration, as well as options for SNMP and web-based management tools.

Overall, the Cisco Systems 3550 series is well-regarded for its multilayer switching capabilities, comprehensive feature set, and versatility in meeting the diverse needs of modern networking, making it a favored solution for businesses aiming to build efficient and secure network infrastructures.