PoE has revolutionized the way we deploy network devices by transmitting data and power over a single Ethernet cable. Following that, the implementation of long-range PoE solutions, such as PoE extenders and long-range PoE switches, also allows you to extend PoE over long distances, which is especially useful when installing IP cameras in remote locations where power sources may not be readily available. However, these long-range PoE networks are also more susceptible to power surges, which can lead to equipment damage, network downtime and financial losses.
Why Long-Range PoE Networks Are Prone to Power Surges?
Firstly, the delivery of power over a considerable distance increases the likelihood of power fluctuations. The longer the cable, the higher the chances of voltage spikes, resulting in uneven power delivery and potential power surges. Secondly, long-range PoE networks often span across diverse landscapes, such as outdoor areas, industrial facilities and remote locations. These environments can expose network equipment to a higher risk of power surges caused by light strikes, electrostatic discharge, faulty power lines, power grid fluctuations, and other external factors. Lastly, the lack of proper surge protection further exacerbates its vulnerability to power surges, causing irreversible damage to network devices such as PoE switches and IP cameras.
Preventing Power Surges with PoE Surge Protectors
To safeguard long-range PoE networks from power surges, it’s essential to install PoE surge protectors. A PoE surge protector is a device specifically designed to divert excessive voltage away from network equipment and prevent its damage.
It acts as a safeguard by blocking power surges from reaching sensitive devices and diverting excessive energy either to the earth or neutral lines. It’s usually installed between the power source, such as a PoE switch, and the connected devices. The surge protector actively monitors the power supply and safely redirects excessive voltage by creating a low-resistance path for the surge to flow away from the IP cameras. By installing surge protectors at both ends of the PoE network, the risk of power surges affecting the network infrastructure can be significantly minimized.
How to Choose a PoE Surge Protector?
Selecting the right PoE surge protector is essential for effective surge protection. Here are some factors to consider:
1.PoE Compatibility: Ensure that the surge protector supports the required PoE standard and is compatible with the voltage requirements of your PoE network.
2.Surge Protection Rating: Look for surge protectors with higher joule ratings, as they can handle larger surges effectively without getting damaged.
3.Speed of Surge Response: Opt for surge protectors that can respond quickly to power surges, preventing any damage before it reaches the network equipment.
4.UL Certification: Verify that the PoE surge protector has undergone careful inspection and certification processes such as Underwriters Laboratories (UL), which test the product’s safety and reliability.
5.Mounting options: Determine the best mounting option for your surge protectors, such as DIN rail, wall mount, or rack mount.
Our Recommendations
- Industrial Din Rail PoE Surge Protector
This PoE surge protector features 16kV surge protection to efficiently mitigate the risks of lighting spikes and power surges over long cable runs. With an ultra-fast 5ns response time, this surge protector reacts swiftly to transient events, minimizing the duration of voltage exposure. Compliant with both 802.3af and 802.3at standards, it can be used with a wide range of PoE-enabled devices, including IP cameras, access points, and other industrial equipment. This surge protector also supports Din-Rail mounting and can be installed side by side in a 19″ wide Din-Rail mounting rack.
- Waterproof Outdoor PoE Surge Protector
Designed to withstand even the harshest weather conditions, this outdoor PoE surge protector (IP68-rated) operates reliably in a temperature range from -40°C to 85°C. With a high surge protection rating of 16kV and a fast response time of 5ns, it can effectively protect your value network equipment against power surges and transient voltages. Supporting data rates of 10/100/1000Mbps, this outdoor PoE surge protector ensures high-speed connectivity for data-intensive outdoor applications.
How to Install the PoE Surge Protectors?
In longer Ethernet cable runs, the risk of voltage differentials or surges may be higher. Installing surge protectors at both ends helps ensure that any transient voltage spikes or surges induced over the length of the cable are addressed effectively. If one surge protector were to fail or become damaged due to a significant surge event, the second one can continue to provide protection. In this setup, the first PoE surge protector should be installed near the PoE switch, while the second surge protector should be set up near the connected device, e.g. the IP camera.
Components Needed:
- long-range PoE switch
- industrial DIN-Rail PoE surge protector
- Outdoor PoE surge protector
- outdoor-rated Ethernet cables
- IP cameras
Steps:
1.Identify the best location for installing the surge protector. Ideally, it should be closest to the network equipment, providing surge protection at the point of entry.
2.Turn off the power supply and disconnect all the Ethernet cables.
3.Connect the Ethernet cable from the long-range PoE switch to the output port of the first PoE surge protector.
4.Connect another Ethernet cable from the input port of the first surge protector to the input port of the second PoE surge protector.
5.Connect the IP camera to the output port of the second surge protector.
6.Ensure that the PoE surge protectors are grounded properly. This can be done by connecting the grounding wire to a designated grounding point.
While PoE surge protectors play a vital role in preventing power surges, additional precautions can be taken to further enhance the reliability of long-range PoE networks. These include:
1)Proper Grounding Systems: While PoE surge protectors are designed to divert and absorb transient voltage spikes, they may not handle extreme events or sustained over-voltage conditions. Grounding the PoE switch provides an additional layer of protection, ensuring that any excess voltage is safely directed to the ground.
2)Regular Maintenance: Conduct routine inspections, cleanings and firmware updates to ensure optimal device performance and reduce the risk of power surges.
3)Uninterruptible Power Supply (UPS): Invest in UPS systems to provide backup power during blackouts. This helps maintain consistent power delivery to network devices and prevents sudden power surges upon resumption of power.
