1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Cisco Catalyst 9200 48-Port Network Essentials Switch (Model C9200-48T-E). This device is designed to provide essential networking capabilities for small to medium-sized enterprises, offering a robust and secure foundation for network access.
Please read this manual thoroughly before attempting to install or operate the switch to ensure proper functionality and to prevent damage to the device or injury to personnel.
2. Informació de seguretat
Observe the following safety precautions to minimize the risk of fire, electric shock, and injury:
- Assegureu-vos que la font d'alimentació voltage coincideix amb els requisits del commutador.
- No feu funcionar l'interruptor en llocs humits o secs.amp condicions.
- Assegureu-vos de la connexió a terra adequada del dispositiu.
- Do not block ventilation openings. Maintain adequate airflow around the switch.
- Només personal qualificat ha de realitzar la instal·lació i el manteniment.
- Disconnect all power cables before cleaning or servicing.
3. Contingut del paquet
Comproveu que el vostre paquet contingui els elements següents:
- Commutador Cisco Catalyst 9200 de 48 ports Network Essentials (C9200-48T-E)
- Cable d'alimentació
- Rack-mount Kit (brackets and screws)
- Cable de consola (RJ-45 a DB-9)
- Documentació (Guia d'inici ràpid, Informació de seguretat)
Si falta algun article o està malmès, contacteu immediatament amb el vostre venedor.
4. Producte acabatview
The Cisco Catalyst 9200-48T-E is a fixed-configuration switch featuring 48 Gigabit Ethernet ports. It supports Network Essentials features, providing a reliable and secure platform for network connectivity.
4.1 Disposició del panell frontal
The front panel of the switch provides access to network ports, console ports, and LED indicators.

Figura 4.1: Davant view of the Cisco Catalyst 9200-48T-E switch, showing 48 RJ-45 Gigabit Ethernet ports, console ports, and uplink module slots.

Figura 4.2: Frontal inclinat view of the Cisco Catalyst 9200-48T-E switch, highlighting the port layout and overall chassis design.

Figura 4.3: A different angled front view of the Cisco Catalyst 9200-48T-E switch, providing a clearer perspective of the port numbering and LED indicators.
4.2 Característiques clau
- Total Number of Network Ports: 48 Gigabit Ethernet ports.
- Port d'enllaç ascendent: Yes, supports modular uplinks.
- Modular: Yes, for flexible uplink options.
- Stack Port: Yes, for stacking multiple switches.
- Tipus d'interfície: PoE+ (Power over Ethernet Plus) support for connected devices.
5. Configuració
5.1 Instal·lació física
- Muntatge en bastidor: Attach the provided rack-mount brackets to the sides of the switch using the included screws. Secure the switch into a standard 19-inch equipment rack. Ensure adequate space for airflow (at least 2 inches on all sides).
- Connexió d'alimentació: Connect the power cord to the AC power connector on the rear panel of the switch and then to a grounded electrical outlet.
- Posada a terra: For optimal safety, ensure the switch is properly grounded. Connect a grounding cable from the grounding lug on the switch to a suitable earth ground.
5.2 Configuració inicial
To perform initial configuration, you will typically use a console connection:
- Connecteu el cable de la consola: Connect one end of the console cable (RJ-45) to the console port on the switch's front panel and the other end (DB-9 or USB adapter) to your computer.
- Terminal Emulation: Open a terminal emulation program (e.g., PuTTY, Tera Term) on your computer. Configure the serial port settings:
- Velocitat de transmissió: 9600
- Bits de dades: 8
- Paritat: cap
- Bits d'aturada: 1
- Control de flux: cap
- Encès: Connect the power cord to the electrical outlet. The switch will begin its boot sequence.
- Initial Setup Dialog: Follow the prompts in the terminal emulation program to perform basic setup, including setting the hostname, IP address, and administrative passwords.
6. Funcionament de l'interruptor
6.1 Connexió de dispositius de xarxa
Connect network devices such as computers, laptops, and printers to the Gigabit Ethernet ports on the switch using standard Ethernet cables (Cat5e or higher). The switch supports auto-negotiation for speed and duplex settings.
6.2 Comprensió dels indicadors LED
Els LED del panell frontal proporcionen informació d'estat sobre el commutador i els seus ports:
- LED del sistema: Indicates overall system status (e.g., green for normal operation, amber for warning, red for critical error).
- LED d'estat del port: Cada port té un LED que indica l'estat i l'activitat de l'enllaç.
- Solid Green: Link established.
- Flashing Green: Activity on the port.
- Off: No link or port disabled.
- LED d'estat PoE: For PoE+ enabled ports, these LEDs indicate PoE status (e.g., power supplied, fault).
6.3 Configuració bàsica de xarxa
After initial setup, you can access the switch's command-line interface (CLI) via console, Telnet, or SSH for advanced configuration. Common configurations include:
- VLAN (xarxes d'àrea local virtuals): Segmenting your network for improved security and performance.
- Protocol d'arbre d'expansió (STP): Preventing network loops.
- Seguretat portuària: Limiting the number of MAC addresses on a port.
- Qualitat de servei (QoS): Prioritizing network traffic.
Refer to the Cisco documentation for detailed CLI commands and configuration guides.
7. Manteniment
7.1 actualitzacions de microprogramari
Reviseu regularment el Cisco website for the latest firmware updates. Keeping your switch's firmware up-to-date ensures optimal performance, security, and access to new features. Follow the specific instructions provided by Cisco for the update process.
7.2 Neteja
To maintain proper ventilation and prevent overheating, periodically clean the switch:
- Apagueu l'interruptor i desconnecteu tots els cables.
- Feu servir un drap suau i sec per netejar l'exterior.
- Use compressed air to clear dust from ventilation openings. Do not use liquid cleaners.
7.3 Consideracions ambientals
Ensure the switch operates within its specified environmental ranges (temperature, humidity) to prevent hardware failure. Avoid placing the switch near heat sources or in direct sunlight.
8. Solució De Problemes
Aquesta secció ofereix solucions a problemes comuns que podeu trobar.
8.1 Sense poder
- Verifiqueu que el cable d'alimentació estigui connectat correctament tant a l'interruptor com a la presa de corrent.
- Comproveu si la presa de corrent funciona connectant-hi un altre dispositiu.
- Ensure the power supply unit (if modular) is correctly seated.
8.2 Sense enllaç al port
- Comproveu la connexió del cable Ethernet als dos extrems. Proveu un cable diferent.
- Verifiqueu que el dispositiu connectat estigui encès i funcioni correctament.
- Check the port status LED. If off, the port might be disabled or there's no physical link.
- Ensure the port is not administratively shut down in the switch configuration.
8.3 Problemes de connectivitat de xarxa
- Verify IP address configuration on the switch and connected devices.
- Check VLAN assignments if your network uses them.
- Ping other devices on the network to isolate the problem.
- Consult the switch's logs for error messages.
9. Especificacions
| Característica | Descripció |
|---|---|
| Marca | Cisco |
| Model | C9200-48T-E |
| Total Number of Network Ports | 48 |
| Port d'enllaç ascendent | Sí |
| Modular | Sí |
| Port de pila | Sí |
| Tipus d'interfície | PoE+ |
| Dispositius compatibles | Ordinador de sobretaula, portàtil, impressora |
| Pes de l'article | 5000 grams |
10. Assistència i garantia
For technical support, product documentation, and warranty information, please refer to the official Cisco website or contact your authorized Cisco reseller. As this is a renewed product, specific warranty terms may vary; consult your vendor for details regarding the warranty provided with your purchase.
Oficial de Cisco Weblloc: www.cisco.com





