Cisco Catalyst 2950T-24 24-Port Switch User Manual

1. Introducció

This manual provides essential information for the installation, operation, and maintenance of your Cisco Catalyst 2950T-24 24-Port Switch. The Catalyst 2950T-24 is a fixed-configuration, wire-speed Fast Ethernet switch designed for small to medium-sized networks, offering 24 10/100Base-T ports for reliable network connectivity.

2. Informació de seguretat

Observeu les següents precaucions de seguretat per evitar lesions i danys a l'equip:

• Assegureu-vos de posar a terra correctament el dispositiu.
• No feu funcionar l'interruptor en llocs humits o secs.amp condicions.
• Proporcioneu una ventilació adequada per evitar el sobreescalfament.
• Use only the power cord supplied with the device or a suitable replacement.
• Eviteu col·locar objectes pesats al cable d'alimentació.
• Desconnecteu l'alimentació abans de netejar-la o reparar-la.

3. Producte acabatview

The Cisco Catalyst 2950T-24 switch features a compact design with all network ports and status indicators located on the front panel for easy access and monitoring.

This image displays the front panel of the Cisco Catalyst 2950T-24 switch. It features 24 RJ45 Ethernet ports for connecting network devices, along with various LED indicators that provide status information for the system and individual ports.

Característiques del panell frontal:

• 24 RJ45 10/100Base-T Ports: For connecting network devices such as computers, servers, and other switches.
• LED del sistema: Indica l'estat operatiu general del commutador.
• RPS LED: Indicates the status of the Redundant Power System (if connected).
• LED d'estat del port: Each port has an LED to indicate link status, activity, and duplex mode.

Característiques del panell posterior:

• Connector d'alimentació CA: Per connectar el cable d'alimentació.
• Port de consola (RJ-45): For local management and initial configuration using a terminal emulator.

4. Configuració

4.1 Desembalatge i inspecció

Carefully unpack the switch and verify that all components are present and undamaged. If any items are missing or damaged, contact your vendor.

4.2 Preparació del lloc

Assegureu-vos que el lloc d'instal·lació compleixi els requisits següents:

• Ventilació adequada per evitar el sobreescalfament.
• Stable surface for desktop placement or a standard 19-inch equipment rack.
• Proximity to a grounded power outlet.
• Operating temperature and humidity within specified ranges (refer to specifications).

4.3 Muntatge de l'interruptor

El commutador es pot col·locar sobre un escriptori o muntar-se en un rack d'equips estàndard de 19 polzades.

• Ubicació d'escriptori: Place the switch on a flat, stable surface, ensuring sufficient space around the device for airflow.
• Muntatge en bastidor: Attach the provided rack-mount brackets to the sides of the switch using the supplied screws. Secure the switch into the equipment rack using appropriate rack screws.

4.4 Connexió de potència

1. Connect one end of the AC power cord to the power connector on the rear panel of the switch.
2. Connect the other end of the AC power cord to a grounded electrical outlet.
3. The switch will power on automatically. Observe the System LED on the front panel; it should turn green after a brief startup sequence.

4.5 Connexió de dispositius de xarxa

Use standard Ethernet cables (Category 5 or higher) to connect your network devices (computers, servers, routers, etc.) to the RJ45 ports on the front panel of the switch.

• Insert one end of the Ethernet cable into a port on your network device.
• Insert the other end of the Ethernet cable into any of the 24 RJ45 ports on the switch.
• Verify the Port Status LED for the connected port. A solid green LED indicates a successful link. A blinking green LED indicates network activity.

4.6 Accés a la configuració inicial

To perform initial configuration or advanced management, connect to the switch's console port:

1. Connect an RJ-45 to DB-9 console cable (often referred to as a rollover cable) to the console port on the rear of the switch.
2. Connect the DB-9 end of the cable to the serial port of a computer.
3. Open a terminal emulation program (e.g., PuTTY, Tera Term) on the computer and configure it with the following settings: 9600 baud, 8 data bits, no parity, 1 stop bit, no flow control.
4. Press Enter to access the switch's Command Line Interface (CLI).

5. Funcionament

5.1 Encès i apagat

The switch powers on automatically when connected to a power source. To power off, disconnect the power cord from the electrical outlet.

5.2 Comprensió dels indicadors LED

• LED del sistema:
  • Solid Green: System is operating normally.
  • Amber: System is performing POST (Power-On Self-Test) or has encountered an issue.
• LED d'estat del port:
  • Solid Green: Link established.
  • Blinking Green: Activity on the port.
  • Off: No link or port disabled.

5.3 Basic Network Connectivity

Once powered on and devices are connected, the switch will automatically forward Ethernet frames between connected devices. For advanced network configurations, such as VLANs or security settings, use the Command Line Interface (CLI) via the console port or a configured in-band management interface.

6. Manteniment

6.1 Neteja

To maintain optimal performance, periodically clean the exterior of the switch with a soft, dry cloth. Ensure the power is disconnected before cleaning. Do not use liquid or aerosol cleaners directly on the device.

6.2 Consideracions ambientals

Ensure the switch operates within its specified temperature and humidity ranges. Avoid blocking ventilation openings to prevent heat buildup.

6.3 actualitzacions de microprogramari

Periodically check the Cisco website for available firmware updates. Updating the firmware can provide new features, performance improvements, and security enhancements. Follow Cisco's official documentation for firmware upgrade procedures.

7. Solució De Problemes

7.1 Sense poder

• Verifiqueu que el cable d'alimentació estigui connectat correctament tant a l'interruptor com a una presa de corrent que funcioni.
• Comproveu la presa de corrent amb un altre dispositiu per assegurar-vos que funciona.
• Ensure the System LED is illuminated. If not, contact support.

7.2 No Link on a Port

• Assegureu-vos que el cable Ethernet estigui connectat correctament pels dos extrems.
• Prova un cable Ethernet diferent.
• Connecteu el dispositiu a un port diferent del commutador.
• Verifiqueu que el dispositiu connectat estigui encès i funcioni correctament.
• Check the Port Status LED. If it remains off, there might be an issue with the cable, the connected device, or the switch port.

7.3 Problemes de connectivitat de xarxa

• Confirm that all devices have valid IP addresses and subnet masks.
• Comproveu si hi ha conflictes d'adreces IP.
• If using advanced configurations (VLANs, routing), verify the configuration via the CLI.
• Perform basic network tests like pinging other devices on the network.

8. Especificacions

9. Garantia i Suport

For detailed warranty information and technical support, please refer to the official Cisco website or contact your authorized Cisco reseller. Cisco provides extensive online resources, including documentation, software downloads, and a support community, to assist with product inquiries and issues.