16-channel LAN surge protector with passive PoE power supply, PTU-516R-ECO/InPoE/P

16-port surge protector, designed to protect 100Mbit LAN networks, PC computers, industrial and building automation systems, and IP-CCTV installations. It provides protection for data transmission lines and delivers PoE power up to 15W/channel in passive mode. The protection effectiveness is 100A for an 8/20µs impulse on each wire, which is sufficient for most indoor applications where the main cause of damage can be electromagnetic induction in the wires.

By increasing the supply voltage to 56V, it is possible to transmit up to 20W per channel. The maximum power given is dictated by the simple introduction of PoE (without a negotiation circuit) and a 350mA automatic fuse. Passive power transmission above 15W @ 48V is not recommended, as damage to the wire or errors in connections can cause damage to the LAN ports in end devices. For power transmission up to 30W/port, we recommend using the PTF-516R-ECO/InPoE/A module, which includes an active PSE negotiation circuit.

The surge protector consists of four PTU-54-ECO/InPoE/P modules, mounted in a PTU/PTF-5-RACK housing.

PoE transmission takes place on transmission lines 1-2, 3-6, similar to the IEEE standard: 802.3af, option A. Pairs 4-5 and -7-8 are completely disabled within the device. Built-in PoE power protection protects against power surges or power supply failures, both on the transmission pairs and on pairs 4,5 and 7,8.

The product can be used with a LAN switch that does not have PoE ports or can be used to increase the number of PoE ports in case of insufficient power or number of PoE ports in the LAN switch. To power each module, a power supply with a voltage of 48-56VDC and a recommended output of 2A should be used to prevent the power supply from shutting down when the automatic fuse is activated.

The panel is equipped with RJ-45 sockets on the protected side and LSA connectors on the unprotected side. The optional cover PTU/PTF-5/6-COVER protects against dust and accidental damage to the modules, and special holes in the base allow for mounting the panel on the wall. Signal cables can be mechanically secured against pulling out using cable ties, using holes or protrusions on the back of the panel.

In the case of using the panel for CCTV installations with NVR recorders, it can be mounted on corner brackets at the back of the Rack cabinet. The benefits of this solution include: more space in the cabinet, convenient access to all connections, and shorter patch cords - IP recorders usually have all connectors at the back.

The best protection efficiency is achieved by using surge protectors at both ends of the LAN cable and proper grounding. Usually, a multi-channel protective panel is used on the LAN switch side, and 1-channel surge limiters are used on the end devices side.

Example of a complete 100Mbit LAN protective installation with passive PoE power supply

Technical specification