1. Introduction
This manual provides instructions for the installation, operation, and maintenance of the TP-Link LS105GP 5-Port Gigabit Desktop Ethernet Switch with 4-Port PoE+. This device is designed to expand your network capacity and provide Power over Ethernet (PoE) functionality to compatible devices.
2. Package Contents
Verify that your package contains the following items:
- TP-Link LS105GP 5-Port Gigabit Desktop Ethernet Switch
- Power Adapter
- Installation Guide
3. Physical Overview
3.1 Front Panel
The front panel features the Ethernet ports and LED indicators.

Image 1: Front view of the TP-Link LS105GP switch. It displays five Gigabit Ethernet ports (1-5) and corresponding LED indicators. The Power LED and PoE Max LED are also visible on the right side. Ports 1-4 are PoE+ enabled.
- Ports 1-5: 10/100/1000 Mbps RJ45 ports. Ports 1-4 support PoE+.
- Left LED (per port): Solid Green indicates a Link, Blinking indicates Activity.
- Right LED (per PoE port 1-4): Solid Green indicates PoE Powered, Flashing Green indicates PoE Fault.
- Power LED: Indicates the power status of the switch.
- PoE Max LED: Indicates if the total PoE power budget is nearing its limit.
3.2 Rear Panel
The rear panel includes the power input and mode switches.

Image 2: Rear view of the TP-Link LS105GP switch. It shows the power input port (53.5V === 1.31A) and two slide switches: 'Extend (Port 1-2)' and 'Recovery (Port 1-4)'.
- Power Input: Connect the provided power adapter here.
- Extend Switch (Port 1-2): When enabled, extends PoE transmission distance up to 250m for ports 1 and 2 at 10 Mbps.
- Recovery Switch (Port 1-4): When enabled, automatically reboots unresponsive PoE-powered devices connected to ports 1-4.
4. Setup
Follow these steps to set up your TP-Link LS105GP switch:
- Placement: Place the switch on a flat, stable surface or mount it to a wall using the provided mounting holes. Ensure adequate ventilation around the device.
- Connect Network Devices: Connect your network devices (e.g., computers, routers, NVRs) to the switch's RJ45 ports using Ethernet cables.
- Connect PoE Devices: For devices requiring Power over Ethernet (e.g., IP cameras, access points, VoIP phones), connect them to ports 1-4. The switch will automatically detect and power these devices if they are 802.3af/at compliant.
- Power On: Connect the provided power adapter to the switch's power input and then plug it into a power outlet. The Power LED on the front panel should illuminate.
- Configure Extend Mode (Optional): If you need to extend the PoE transmission distance for devices connected to ports 1 and 2, set the 'Extend (Port 1-2)' switch on the rear panel to 'On'. Note that this will reduce the port speed to 10 Mbps.
- Configure PoE Auto Recovery (Optional): To enable automatic rebooting of unresponsive PoE devices on ports 1-4, set the 'Recovery (Port 1-4)' switch on the rear panel to 'On'.
The switch is plug-and-play and requires no further configuration for basic operation.
5. Operating
Once powered on and connected, the switch operates automatically. Observe the LED indicators for status information:
- Power LED: A solid light indicates the switch is powered on.
- Link/Act LEDs: A solid green light indicates a successful network link. A blinking green light indicates data activity on that port.
- PoE LEDs (Ports 1-4): A solid green light indicates that the connected device is receiving PoE power. A flashing green light indicates a PoE fault, such as overcurrent or short circuit.
- PoE Max LED: This LED illuminates when the total PoE power consumption approaches the maximum budget (65W). If it flashes, it indicates that the total PoE power has exceeded the budget, and some PoE devices may not be powered.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your switch.
- Cleaning: Use a soft, dry cloth to clean the exterior of the switch. Do not use liquid or aerosol cleaners.
- Ventilation: Ensure that the ventilation openings are not blocked. Do not place the switch in an enclosed space without airflow.
- Environmental Conditions: Operate the switch within the recommended temperature range of 0°C to 40°C (32°F to 104°F) and humidity range of 10% to 90% non-condensing.
- Power Supply: Only use the power adapter provided with the device.
7. Troubleshooting
If you encounter issues with your switch, refer to the following common problems and solutions:
- No Power:
- Ensure the power adapter is securely connected to the switch and a working power outlet.
- Verify the power outlet is functional by plugging in another device.
- No Link/Activity LED:
- Check that the Ethernet cable is securely connected to both the switch port and the network device.
- Ensure the connected network device is powered on and functioning correctly.
- Try a different Ethernet cable or port.
- PoE Device Not Powering On:
- Ensure the PoE device is 802.3af/at compliant.
- Check the PoE LED for the connected port. If it's flashing, there might be a PoE fault.
- Verify that the total PoE power consumption does not exceed the 65W budget. If the PoE Max LED is on or flashing, disconnect some PoE devices or use a non-PoE port.
- If 'Extend Mode' is enabled, ensure the device is compatible with 10 Mbps speed.
- If 'Recovery Mode' is enabled, the device might be in a reboot cycle.
- Slow Network Speed:
- Ensure all connected devices and cables support Gigabit Ethernet for optimal performance.
- If 'Extend Mode' is enabled, the speed for ports 1 and 2 is limited to 10 Mbps. Disable it if higher speeds are required and the distance allows.
8. Specifications
| Feature | Specification |
|---|---|
| Model | LS105GP |
| Ports | 5 × 10/100/1000 Mbps RJ45 Ports (4 PoE+ ports) |
| PoE Standard | 802.3af/at compliant |
| PoE Power Budget | 65 W total, up to 30 W per port |
| PoE Transmission Distance | Up to 250 m (with Extend Mode enabled on ports 1-2) |
| Switching Capacity | 10 Gbps |
| Jumbo Frame | 16 KB |
| MAC Address Table | 2K |
| Fanless Design | Yes |
| Dimensions (L x W x H) | 10L x 9.8W x 2.5H Centimeters |
| Material | Metal Casing |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -40°C to 70°C (-40°F to 158°F) |
| Operating Humidity | 10% to 90% RH non-condensing |
| Storage Humidity | 5% to 90% RH non-condensing |
9. Warranty and Support
For warranty information, technical support, and product updates, please visit the official TP-Link website. You can find detailed support resources, FAQs, and contact information for your region.
TP-Link Official Website: www.tp-link.com







