1. Introduction
This manual provides detailed instructions for the installation, configuration, and operation of the Ubiquiti UniFi USW-48-PoE Ethernet Switch. The USW-48-PoE is a configurable Gigabit Layer 2 switch with 48 Gigabit Ethernet ports, including 32 802.3at PoE+ ports, and 4 SFP ports, designed to enhance your network infrastructure. It is managed and configured by the UniFi Network Controller.
Image 1.1: The Ubiquiti UniFi USW-48-PoE Ethernet Switch, showcasing its overall design and port layout from a three-quarter perspective.
2. Package Contents
Verify that the following items are included in your package:
- Ubiquiti UniFi USW-48-PoE Ethernet Switch
- Power Cord
- Rack-Mount Brackets (2)
- Bracket Screws (8)
- Mounting Screws (4)
- Cage Nuts (4)
3. Hardware Overview
3.1. Front Panel
Image 3.1: Front view of the UniFi USW-48-PoE Switch, highlighting the Ethernet and SFP ports, along with the touch LCM display.
- (1) 1.3" Touch LCM: A liquid crystal module display providing status information and basic configuration options.
- (2) RJ45 Ports (1-48): These are Gigabit Ethernet ports. Ports 1-32 support 802.3at PoE+ for powering compatible devices. Ports 33-48 are standard Gigabit Ethernet ports without PoE.
- (3) SFP Ports (49-52): These are 1G SFP ports for fiber optic connections, allowing for high-speed uplinks to other network devices.
3.2. Rear Panel
Image 3.2: Rear view of the UniFi USW-48-PoE Switch, showing the AC power input and ventilation.
- (1) AC Power Input: Connect the included power cord to this port.
- (2) Ventilation: Designed for heat dissipation to ensure optimal performance.
4. Installation
4.1. Safety Guidelines
Observe these guidelines to prevent damage to the device or injury:
- Do not expose this device to water or moisture.
- Do not open the device. Refer all servicing to qualified personnel.
- Ensure proper ventilation.
4.2. Rack Mounting
The USW-48-PoE can be mounted in a standard 19-inch rack using the provided rack-mount brackets.
- Attach the two rack-mount brackets to the sides of the switch using the eight bracket screws.
- Secure the switch in the rack using the four mounting screws and cage nuts.
4.3. Connecting Power
Connect the included power cord to the AC Power Input port on the rear panel of the switch and then to a suitable power outlet.
4.4. Connecting Network Devices
Connect your network devices (e.g., computers, access points, IP cameras) to the RJ45 Ethernet ports on the front panel. For devices requiring Power over Ethernet, connect them to ports 1-32. Use SFP modules and fiber optic cables for high-speed uplinks via the SFP ports.
5. Configuration
The UniFi USW-48-PoE Switch is managed by the UniFi Network Controller software. Ensure you have the UniFi Network Controller installed and running on a computer or a UniFi Cloud Key.
- Connect to Network: Ensure the switch is connected to the same Layer 2 network as your UniFi Network Controller.
- Launch UniFi Controller: Open your UniFi Network Controller interface in a web browser.
- Adopt Device: Navigate to the 'Devices' section. The USW-48-PoE should appear as a pending device. Click 'Adopt' to integrate it into your UniFi network.
- Configure Settings: Once adopted, you can configure port settings, VLANs, PoE output, and other network parameters through the UniFi Network Controller interface.
6. Operating
Once installed and configured, the USW-48-PoE operates automatically. The 1.3" touch LCM provides real-time status information, including port status, throughput, and PoE usage. LED indicators on each port show link/activity status and PoE status.
- Link/Activity LED (Amber/Green): Indicates network link and data activity.
- PoE LED (Green): Indicates Power over Ethernet is active on the port.
7. Maintenance
7.1. Firmware Updates
Regularly update the switch firmware through the UniFi Network Controller to ensure optimal performance, security, and access to new features. The controller will typically notify you of available updates.
7.2. Cleaning
Periodically clean the exterior of the switch with a soft, dry cloth. Ensure ventilation openings are free from dust and obstructions to maintain proper airflow.
7.3. Environmental Considerations
Operate the switch within its specified temperature and humidity ranges to prevent damage and ensure longevity.
8. Troubleshooting
8.1. No Power
- Verify the power cord is securely connected to both the switch and a functional power outlet.
- Check the power source for functionality.
8.2. No Network Connectivity
- Ensure Ethernet cables are properly connected to both the switch and the connected device.
- Check the Link/Activity LEDs on the switch ports. If unlit, try a different cable or port.
- Verify network settings in the UniFi Network Controller.
8.3. PoE Issues
- Confirm the connected device is PoE compatible and requires 802.3at PoE+.
- Ensure the device is connected to a PoE-enabled port (ports 1-32).
- Check PoE settings for the specific port in the UniFi Network Controller.
8.4. Resetting the Device
To reset the switch to factory default settings, locate the reset button (usually a small pinhole button) and press and hold it for approximately 10 seconds until the device reboots.
9. Specifications
| Feature | Specification |
|---|---|
| Model | USW-48-POE |
| Dimensions | 17.42 x 11.22 x 1.72 inches (442.4 x 285 x 43.7 mm) |
| Weight | 17 pounds (7.7 kg) |
| Total Non-Blocking Throughput | 54 Gbps |
| Switching Capacity | 108 Gbps |
| Forwarding Rate | 80.35 Mpps |
| Power Method | 100-240VAC/50-60 Hz, Universal Input |
| Power Supply | AC/DC, Internal, 240W |
| Max. Power Consumption | 240W (excluding PoE output) |
| Max. PoE+ Wattage per Port | 32W |
| PoE Interfaces | (32) PoE+ IEEE 802.3af/at (Pins 1, 2+; 3, 6-) |
| Networking Interfaces | (48) 10/100/1000 Mbps RJ45 Ethernet Ports, (4) 1 Gbps SFP Ports |
| Management Interface | Ethernet In-Band, 1.3" Touch LCM |
| Operating Temperature | -5 to 40° C (23 to 104° F) |
| Operating Humidity | 10 to 90% Noncondensing |
| Certifications | CE, FCC, IC |
10. Warranty and Support
Ubiquiti Networks products come with a limited warranty. For detailed warranty information, please refer to the official Ubiquiti website. Technical support and additional resources, including software downloads and community forums, are also available on the Ubiquiti support portal.
For the most current documentation and support, please visit: ui.com/support
