LAN Security Module with Passive PoE Injection, PTF-54-EXT/InPoE/P

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

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

It is also enriched with a passive PoE injector, sending 15W of power to each port at a 48V power supply. By increasing the voltage to 56V, up to 20W of power can be transmitted on each port. The maximum power is limited by the simple PoE input (without negotiation) and the 350mA automatic fuse. Passive transmission of power above 15W @ 48V is not recommended, as damage to the cable 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-54-EXT/InPoE/A module, which includes an active PSE negotiation circuit.

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 48-56V DC and a recommended output of 2A should be used to prevent the power supply from shutting down when the automatic fuse is activated.

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 inside the module.

Passive PoE injector in PTF-54 modules

NOTE! The InPoE module can be connected to a PoE port on the switch, but does not transfer 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 any additional actions. Connecting the entire device to the ground is done using the attached wire, attached to a common grounding point.

Product 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

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