1. Producte acabatview
The Cisco Catalyst 3750-24PS-S is a 24-port Fast Ethernet switch with Power over Ethernet (PoE) capabilities, designed for enterprise-class LAN access. This switch is manageable and features two Small Form-Factor Pluggable (SFP) uplink ports for flexible connectivity. This particular unit is a pre-owned or refurbished product, professionally inspected and tested to function like new, as part of the Amazon Renewed program.

Figura 1: Front panel of the Cisco Catalyst 3750-24PS-S switch. This image displays the front panel of the Cisco Catalyst 3750-24PS-S switch. It features 24 Fast Ethernet ports with Power over Ethernet (PoE) capabilities, arranged in two rows of twelve ports each. On the right side, there are two small form-factor pluggable (SFP) uplink ports for fiber optic connections, along with status indicator LEDs.
2. Configuració i instal·lació
2.1 Desembalatge i inspecció
Carefully unpack the switch and its accessories. Inspect all components for any signs of damage. If any damage is found, contact your supplier immediately.
2.2 Muntatge en bastidor (opcional)
The switch is designed for standard 19-inch rack mounting. Use the provided rack-mount brackets and screws to secure the switch in a rack. Ensure adequate ventilation around the unit.
2.3 Connexió d'alimentació
- Connect the power cord to the AC power connector on the rear panel of the switch.
- Connecteu l'altre extrem del cable d'alimentació a una presa de corrent de CA amb connexió a terra.
- Verify that the system LED on the front panel illuminates, indicating power is supplied.
2.4 Connexions de xarxa
- Ports Ethernet: Connect network devices (e.g., computers, IP phones, wireless access points) to the 24 Fast Ethernet (10/100) ports using standard Ethernet cables. These ports support Power over Ethernet (PoE).
- Ports d'enllaç ascendent: Use the two SFP ports for high-speed uplink connections to other switches or routers, typically with fiber optic transceivers.
- Port de la consola: For initial configuration and management, connect a console cable (RJ-45 to DB-9) from a terminal or computer to the console port on the switch.
3. Instruccions de funcionament
3.1 Encès
Once connected to power, the switch will automatically power on. Observe the system LED on the front panel. A solid green light indicates normal operation.
3.2 Indicadors LED
The front panel LEDs provide status information:
- LED del sistema: Indicates overall system status (e.g., green for normal, amber for fault).
- RPS LED: Indicates Redundant Power System status.
- LED d'estat del port: Each Fast Ethernet port has an LED indicating link status and activity.
- LED d'estat PoE: Indicate the Power over Ethernet status for each port.
3.3 Connectivitat bàsica
After connecting devices to the Ethernet ports, they should establish a link. The corresponding port LED will illuminate. If a device is PoE-enabled and requires power, the PoE LED for that port will also indicate power delivery.
3.4 Accés de gestió
The Cisco Catalyst 3750-24PS-S is a manageable switch. Access to the command-line interface (CLI) for configuration and monitoring can be achieved via:
- Port de la consola: Direct connection for initial setup.
- Telnet/SSH: Remote access over the network once an IP address is configured.
- SNMP: For network management systems.
4. Manteniment
4.1 Neteja
Netegeu periòdicament l'exterior de l'interruptor amb un drap suau i sec. No utilitzeu netejadors líquids ni en aerosol. Assegureu-vos que les obertures de ventilació estiguin lliures de pols i obstruccions.
4.2 Consideracions ambientals
Operate the switch within its specified temperature and humidity ranges. Ensure proper airflow to prevent overheating. Avoid exposing the switch to direct sunlight or excessive moisture.
4.3 actualitzacions de microprogramari
Reviseu regularment el Cisco website for available firmware updates. Applying updates can improve performance, add features, and address security vulnerabilities. Follow Cisco's specific instructions for firmware upgrade procedures.
5. Solució De Problemes
5.1 Sense poder
- Verifiqueu que el cable d'alimentació estigui connectat correctament tant a l'interruptor com a la presa de corrent.
- Comproveu la presa de corrent amb un altre dispositiu per assegurar-vos que funciona.
- Ensure the power supply unit (if external) is properly connected and functioning.
5.2 Sense enllaç al port
- Comproveu la connexió del cable Ethernet als dos extrems.
- Prova un cable Ethernet diferent.
- Connect a different device to the port to isolate the issue.
- Verify the device connected to the port is powered on and functioning correctly.
5.3 El PoE no funciona
- Assegureu-vos que el dispositiu connectat sigui compatible amb PoE.
- Comproveu el LED d'estat PoE del port específic.
- Verify that the switch has sufficient power budget for all connected PoE devices.
5.4 Problemes de connectivitat de xarxa
- Verify IP address configuration on the switch and connected devices.
- Check routing configurations if devices are on different subnets.
- Consult the Cisco documentation for advanced troubleshooting steps related to specific network configurations.
6. Especificacions
| Característica | Especificació |
|---|---|
| Model | WS-C3750-24PS-S |
| Marca | Cisco |
| Nombre de Ports | 24 x 10/100 Fast Ethernet (PoE) |
| Ports d'enllaç ascendent | 2 x SFP |
| Tecnologia Ethernet | Fast Ethernet |
| Manejable | Sí |
| RAM | 256 MB |
| Mida de la memòria flash | 128 MB |
| Dimensions del producte (LxWxH) | 18.11 x 17.52 x 1.75 polzades |
| Pes de l'article | 15.87 lliures (7200 grams) |
| Dispositius compatibles | Escriptori |
7. Garantia i Suport
7.1 Garantia renovada d'Amazon
This product is covered by the Amazon Renewed Guarantee. If you are not satisfied with your purchase, renewed products are eligible for replacement or refund within 90 days of receipt.
7.2 Suport tècnic
For technical assistance with the Cisco Catalyst 3750-24PS-S switch, refer to the official Cisco documentation available on their website. For issues related to your purchase or the Amazon Renewed Guarantee, please contact Amazon customer service or the seller, Network Hardware Depot.





