1. Introducció i finalview
The Cisco SG112-24 is a compact 24-Port Gigabit Ethernet Switch designed for small office and home office environments. This unmanaged switch provides essential network connectivity without the need for complex configuration. It offers reliable performance, energy efficiency, and ease of use, making it an ideal solution for expanding your network.
2. Contingut del paquet
Comproveu que el vostre paquet contingui els elements següents:
- Cisco SG112-24 Switch
- Power cord / Adapter
- Rackmount kit (brackets and screws)
- Quick Start Guide (not shown, but typically included)

Figure 1: Cisco SG112-24 Switch and included accessories in its packaging.
3. Característiques del producte
- ETHERNET PORT CONFIGURATION: 24-port 10/100/1000 Gigabit Ethernet ports, plus 2 Gigabit Ethernet Combo mini-GBIC SFP ports for flexible connectivity.
- PLUG AND PLAY: Simple setup with no software to install or configuration needed.
- CONSTRUït PER DURAR: Features a rugged metal housing for durability and a fanless design for quiet operation.
- SUPPORTED AUTOMATIC FEATURES: Includes Quality of Service (QoS) for traffic prioritization, loop detection, and cable diagnostics.
- EFICIENT ENERGÈTIC: Optimizes power usage to lower operating costs, compliant with IEEE802.3az Energy Efficient Ethernet.

Figure 2: Visual representation of the Cisco SG112-24 Switch with its main features listed.
4. Instruccions de configuració
4.1 Col·locació física
The Cisco SG112-24 can be placed on a desktop or rack-mounted using the included kit. Ensure adequate ventilation around the device. Connect the power adapter to the switch and then to a power outlet.
4.2 Connexió de dispositius de xarxa
Connect your network devices (computers, servers, printers, etc.) to any of the 24 Gigabit Ethernet ports using standard Ethernet cables. The switch is plug-and-play, meaning it will automatically detect and configure connected devices. For uplink to a router or another switch, use any available port.

Figura 3: Frontal view of the Cisco SG112-24 Switch, showing the 24 Gigabit Ethernet ports and 2 SFP combo ports.
5. Instruccions de funcionament
5.1 Encès/Apagat
Once the power adapter is connected, the switch will power on automatically. There is no manual power button. The Power LED on the front panel will illuminate to indicate the device is operational.
5.2 Indicadors LED
Each Ethernet port has LED indicators to show its status:
- LED d'enllaç/Actuar: Solid green indicates a valid network link. Blinking green indicates network activity (data transmission).
- LED de velocitat: (If applicable, typically integrated with Link/Act or separate) Indicates the connection speed (e.g., green for Gigabit, amber for 10/100 Mbps).
5.3 Funcions automàtiques
The SG112-24 includes several automatic features for optimal network performance:
- Qualitat de servei (QoS): Automatically prioritizes network traffic for critical applications.
- Detecció de bucle: Helps prevent network loops that can cause broadcast storms and network outages.
- Diagnòstic de cables: Assists in identifying cable issues for easier troubleshooting.
6. Network Diagram Example
A continuació hi ha un example of how the Cisco SG112-24 switch can be integrated into a small office or home office network to expand connectivity.

Figure 4: A typical network setup showing a router connected to the SG112-24 switch, which then connects to multiple desktop PCs, an access point, a workstation, and a server.
7. Especificacions
| Característica | Valor |
|---|---|
| Pes de l'article | 4.1 lliures |
| Material de la caixa | Metall |
| Tipus d'interfície | SFP |
| Velocitat de transferència de dades | 1000 megabits per segon |
| RAM | 128 MB |
| Sèrie | SG112-24 |
| Número de model de l'article | SG112-24-NA |
| Dimensions del producte | 11 x 6.69 x 1.73 polzades |
| Mida de la memòria flash | 128 |
| Marca | Cisco |
| Nombre de Ports | 24 |
| Color | Negre |
| Dispositius compatibles | PC |
8. Solució De Problemes
If you encounter issues with your Cisco SG112-24 switch, consider the following:
- Sense energia: Ensure the power adapter is securely connected to both the switch and a working power outlet. Check the Power LED on the front panel.
- Sense enllaç/activitat: Verify that Ethernet cables are properly connected to both the switch port and the network device. Check the Link/Act LED for a solid green light (link) or blinking (activity). Try a different cable or port.
- Velocitat de xarxa lenta: Ensure all connected devices and cables support Gigabit Ethernet for optimal performance. The switch's automatic features (QoS, cable diagnostics) can help identify bottlenecks.
- Network Loops: The switch includes loop detection to prevent network outages caused by redundant connections. If a loop is detected, the affected port may be disabled or indicated by a specific LED pattern (refer to the Quick Start Guide for details).
9. Garantia i Suport
The Cisco SG112-24 Desktop Switch comes with a Garantia limitada de per vida i one-year technical support. For detailed warranty information and to access technical support resources, please visit the official Cisco weblloc web o consulteu la documentació inclosa amb el producte.
10. Recursos multimèdia
10.1 Imatges del producte



10.2 Vídeos oficials de productes
Una mirada més propera
Aquest vídeo ofereix una visió detallada deview of the Cisco SG112-24 Switch, showcasing its design, ports, and overall build quality.