The DNET1 does not work with PoE products.

It’s a surge protector’s job to stop a voltage fluctuation or lightning strike from damaging the sensitive electronic equipment connected to it but it does so by sacrificing itself. Once a power surge has been blocked, your surge protector may no longer provide protection. Many of our surge protectors include an LED “protection” indicator that indicates that surge suppression are intact and providing protection against surges.

A surge protector will protect your electronics by acting as an “electrical sponge” by clamping down on spikes, “soaking them up” and converting the excess energy into heat, thus preventing the spikes from passing through the surge protector into the sensitive electronic devices and damaging them. As with any “sponge” a surge protector has a limited absorption capacity. Once that capacity is reached, the unit is no longer able to protect and must be replaced.

Please do not plug a surge protector into a UPS. This may void the UPS warranty. Tripp Lite UPS products have surge suppression. For additional surge protection, plug a Tripp Lite surge protector into a wall outlet and plug the UPS into the surge protector. Please remember that the equipment you want to run during a power loss must be plugged into only the battery side of the UPS. For additional outlets, plug a Tripp Lite power strip into the UPS. Do not overload the UPS.

Some Tripp Lite Audio/Video surge protectors are equipped with an audible alarm. This feature immediately alerts you to damaged internal protection circuitry. If the surge protector is the source of the alarm, your unit requires replacement. There are a few reasons why the audible alarm will sound: 1. A power surge occurred that damaged the unit's internal components. 2. In the event that the surge protector has been in service for a number of years, the internal protection components of the unit may have expired. 3. The unit may be faulty.

In the event that a power surge has occurred, and one or more devices connected to a Tripp Lite surge protector have been damaged, you may be eligible to file a claim under our Ultimate Lifetime Insurance program. However, to make an eligible claim regarding a Network surge protector, a Tripp Lite AC line surge protector must also be used in conjunction with it. Also, the surge protector can be replaced under warranty. Please see the link below for further details about Tripp Lite's Ultimate Lifetime Insurance Policy and the steps required to file a claim: https://www.tripplite.com/support/insurance-claims

Almost all Tripp Lite surge protectors are designed to operate silently. If the unit is the source of any type of sound, such as a humming, crackling, or popping noise, the surge protector requires replacement. Here are some reasons why the surge protector may produce abnormal sounds: 1. A power surge occurred that damaged its internal components. 2. If the surge protector has been in service for a number of years, the internal protection components of the unit may have expired. 3. The unit may be faulty.

The Protection Present/Protected LED indicates that the internal components of the surge protector are providing surge suppression. If this LED turns off, the unit has an internal problem and requires replacement. Here are the three most common reasons why the LED may not be lit: 1. Your unit has taken a surge hit, causing the internal components, as designed, to absorb the surge and protect the connected equipment. 2. Over time, the internal components of the unit can expire from multiple surge hits. 3. The LED may be faulty.

Tripp Lite Data Line surge protectors are designed to provide surge protection on Ethernet-based data lines without interfering with the signal. The following are some reasons why interference may be found on the data line while your surge protector is installed: -Another device nearby is causing EMI (electromagnetic interference) or RFI (radio frequency interference) distortions through the AC line or through the air. -A severe surge has occurred and the unit absorbed the damage, as designed, to protect any connected equipment. -The unit is malfunctioning. Follow these instructions in an attempt to identify the problem: 1. Remove the Tripp Lite Data Line surge protector from your application. 2. Connect the device that was being protected directly to the data line. 3. Test to make sure that the device is working properly without the surge protector installed. If it is not operating correctly, contact the manufacturer of the device for further troubleshooting assistance. If it is operating correctly, proceed to the next step. 4. Reinstall the surge protector between the device and the data line. 5. Connect the green ground wire on the surge protector directly to the protected equipment’s chassis (except DB9 and DB25 models). The Data Shield by Tripp Lite Network Data Line surge protector must be properly grounded and positioned as closely as possible to the equipment being protected. The length of the signal line and ground wire (if equipped) between the surge protector and the protected equipment should be no longer than 12 inches (12”). It is best to install the surge protector directly to the equipment. 6. Test the device you are protecting to make sure that it is working properly. If you have followed these steps and there is still interference on the data line with the surge protector installed, then the unit requires replacement.

Tripp Lite Data Line surge protectors are designed to minimize the risk of surge damage that can occur through a data line, such as a telephone or Ethernet port. Please note that Tripp Lite Data Line surge protectors are only for use with Ethernet-based signals. Here are some reasons why the surge protector is not passing a signal: -A severe surge has occurred and the unit absorbed the damage, as designed, to protect connected equipment. -The device is not installed correctly. Verify input and output connections on the surge protector are correct. -The device is malfunctioning. If your network surge protector is not operating correctly, follow these steps to identify the problem: 1. Test to make sure that the device you would like to protect is working properly. Connect this device directly to the data port without the Tripp Lite unit in place. Make sure that the device is operating correctly. If it is not, contact the manufacturer of the device for further assistance. 2. Install the surge protector between the device and data line. 3. Connect the green ground wire on the surge protector directly to the protected equipment’s chassis (except DB9 and DB25 models). The Data Shield by Tripp Lite Network Data Line surge protector must be properly grounded and positioned as closely as possible to the equipment being protected. The length of the signal line and ground wire (if equipped) between the surge protector and the protected equipment should be no longer than 12 inches (12”). It is best to install the surge protector directly to the equipment. 4. Test the device you are protecting to make sure that it is working properly. If you have followed these steps and the surge protector is still not passing a signal, then the unit requires replacement.

Some Tripp Lite surge protectors offer RJ45 line surge protection for various devices. However, these connectors are only compatible with Ethernet-based signals. When used properly, these ports can help prevent a power surge from damaging any equipment connected to them. There are three common reasons why these ports may not be operating properly: -The RJ45 cables are not connected to the proper ports on the unit. -The signal being used is not Ethernet-based. -A surge occurred and damaged the RJ45 protection ports of the surge protector. Please follow these instructions to determine if the RJ45 ports are functioning properly: 1. Remove the device that is plugged into the RJ45 ports on the unit. 2. Check that the device is working properly by plugging it directly into your signal source and verifying that it is operating correctly. If the device is not working, contact the manufacturer of that product for further troubleshooting assistance. If it is working, proceed to the next step. 3. Install a known working RJ45 cable from the signal source to the RJ45 port labeled IN on the unit. 4. Plug a known working RJ45 cable from the device you wish to protect into the RJ45 port labeled OUT on the unit. 5. Test to make sure that the device is working properly. If the RJ45 ports are still not passing a signal to the connected device, the unit requires replacement.

There are three common reasons why these ports may not be working properly: -The phone cords are not connected to the proper jacks on the surge protector. -The phone cords are not firmly seated in the phone jacks. -A surge has come through and damaged the phone board of the surge protector. Follow these instructions to determine if the RJ11/phone jacks are functioning properly: 1. Remove the device that is plugged into the RJ11/phone jacks on the surge protector. 2. Plug the device directly into your signal source to verify that it is operating correctly. If the device is not working, contact the device's manufacturer for further troubleshooting assistance. If it is working, proceed to the next step. 3. Install an RJ11/phone cord from the signal source to the phone port (labeled IN) on the surge protector. 4. Plug the device you want to protect from phone line surges into the OUT phone port on the surge protector. 5. Test to make sure that the device is working properly. If you have followed these steps and the RJ11/phone connectors are still not passing a signal, the unit requires replacement.

The master switch on Tripp Lite surge protectors, when applicable, is designed to work each time it is used. In the event that the switch does not respond when toggled, the unit requires replacement. Follow these instructions to verify that the switch is or is not working properly: 1. Remove any equipment still plugged into the unit. 2. Be sure that the master switch is in the Off position. 3. Unplug the unit from the AC power source. 4. Check to make sure the circuit breaker is reset. 5. Check the 120V AC power source by plugging a different device into the outlet. After verifying that the outlet is passing power, plug the surge protector into the outlet. The unit requires a working 120V AC power source that provides computer-grade power. 6. Toggle the master switch to the On position. 7. Attach a small device, such as an alarm clock or radio, to the surge protector to test if the unit is passing power. If these steps are followed and the master switch is still not operating properly, the unit requires replacement.

Your Tripp Lite surge protector is designed to pass power continuously to the electronic devices plugged into it when it is used under normal operating conditions as described in the owner’s manual. There are several reasons why the unit may not pass power: 1. A severe surge has occurred and the unit absorbed the damage, as designed, to protect any connected equipment. 2. The wall outlet to which the unit is connected is not passing power. 3. The circuit breaker on the unit has been overloaded and needs to be reset. Please follow the instructions below to restore normal operation: 1. Remove any equipment still plugged into the unit. 2. Be sure that the master switch is in the Off position. 3. Unplug the unit from the AC power source. 4. Check to make sure the circuit breaker is reset. 5. Check the 120V AC power source by plugging a different device into the outlet. After verifying that the outlet is passing power, plug the surge protector into the outlet. The unit requires a working 120V AC power source that provides computer-grade power. 6. Toggle the master switch to the On position. 7. Connect a small device, such as an alarm clock or radio, to the surge protector to test if the unit is passing power. If the unit still does not power on and pass power, the unit requires replacement.

Most Tripp Lite 120V surge products have a Line OK LED. The purpose of this indicator light is to notify you that the building wiring is safe for use with the surge protector. In the event that the LED is not lit, please follow these instructions in an attempt to identify the problem: Remove any equipment still connected to the unit. Be sure that the master switch is in the Off position. Unplug the unit from the AC power source. Check to make sure the circuit breaker is reset. Plug the unit into a working 120V AC power source that provides computer-grade power and that is on a different circuit than the one on which the unit was originally used. Toggle the master switch to the On position. If the Line OK LED is not lit after you have followed these steps, the unit requires replacement.