LAN surge protection module with active PoE injector, PTF-54-EXT/InPoE/A

The PTF-54-EXT/InPoE/A product is a 4-channel LAN protection module, dedicated to professional CCTV installations that require the most effective protection.

It is equipped with automatic fuses using MOSFET technology, which quickly disconnects the circuits of the protected side from the unprotected side, allowing for the maximum amount of surge current to be directed to the ground. This results in a surge received by the protected devices that is several times lower than with conventional solutions.

The PTF-54-EXT/InPoE/A is also enriched with an active PoE injector. The maximum power that can be sent to each port is 30W at 48V. The integrated PSE negotiation system monitors the voltage and power consumption, ensuring complete safety for the installation and connected LAN devices. This protects against damage in case of connection errors or short circuits in the cables, as well as in case of failure to comply with the required power supply standard for the receiver. The product provides PoE power to devices compliant with the IEEE 802.3af/at specification, option A.

The module is designed for building multi-channel surge protection systems for LAN networks with 10Mbit or 100Mbit, including protection for computers, switches, PLC controllers, industrial television systems, and other devices installed inside buildings that require PoE power supply.
It can be used with a LAN switch that does not have PoE ports or 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 should be used, providing sufficient power for the powered devices - the recommended power supply should have a power of about 150W.

PoE transmission takes place on transmission lines 1-2, 3-6, while pairs 4-5 and 7-8 are completely disabled inside the module.

Active PoE injector in PTF-54 modules

NOTE! The InPoE module can be connected to a PoE port on the switch, but does not pass PoE power between the LINE and DEVICE sides.

The module has increased impact resistance at a level of 2.5kA per conductor, allowing for direct discharge of large shock loads directly to the ground, originating from induced impulses and spark jumps. Complementing this are circuits that protect devices powered by PoE pairs, where damage can occur due to induced shock currents during atmospheric discharge, as well as due to PoE power supply failure. An additional protective barrier against surges is provided by built-in isolating transformers on the LINE and DEVICE sides.

The product is compatible with Ethernet standards 10Base-T and 100Base-TX and can be used with category 5, 5e, 6, and 6a cabling - thanks to the use of shielded sockets, the connection between the LINE and DEVICE sides is not utilized.

The module can be mounted in plastic enclosures PTU/PTF-5-BOX or PTU/PTF-5-BOX/DIN (1 piece) as well as in PTU/PTF-5-RACK panels (up to 4 pieces), creating complete multi-channel protection systems or by using different modules, systems with different purposes and levels of protection.
Modules in Rack panels can be combined with others to achieve an optimal configuration for the required installation needs.

All modules from the PTF-54 series grounding point are implemented through the mounting screws of the Rack housing, so any expansion or replacement of the module is very easy and does not require additional actions. Connecting the entire device to the ground is done using the attached cable, attached to a common grounding point.

The protected and unprotected sides are equipped with RJ-45 sockets, so the modules can be connected to other patch panels, serving as terminations for LAN cables. However, standard patch panels with LSA (Krone) connectors and Keystone sockets should not be used, as their printed circuit board strength is very low and there is a risk of damage in case of a surge. It is best to terminate the cables with simple RJ-45 plugs.

The product is tested according to categories D1, C2, C1, B2. It is intended for use at the boundaries of LPZ0/LPZ1 zones or higher.

Method of mounting modules in the dedicated PTU/PTF-5-RACK housing

Mounting method of modules in dedicated plastic housing PTU/PTF-5-BOX