8-channel surge protection for LAN Gigabit Ethernet, PTU-68R-EXT/PoE

Surge protection for Gigabit Ethernet networks, built based on 5, 5e and 6th category cabling. It is composed of two PTU-64-EXT modules mounted in the PTU/PTF-6-RACK panel. It is designed for mounting in a 19 "Rack cabinet on the front rail. In IP-CCTV installations it can be mounted on the rear rail using LK-MOUNT angle brackets - many NVR's recorders have a built-in LAN switch and all connectors on the back.

The RJ-45 connectors on the front (DEVICE) are protected against surges. The Gigabit Ethernet LAN ports are connected to them using patch cords. The rear LSA connectors are an unprotected side (LINE), where long LAN cables are connected without the use of RJ-45 connectors. This design creates two devices in one: LAN patch panel with RJ-45 sockets and effective surge protection. This solution simplifies the installation, reduces the number of additional elements and reduces costs. To ensure continuity of FTP cable screen, shielded patch cords and metal clamps on PCBs should be used.

The PTU-64 series modules are very high-quality surge protection products with low signal losses. The use of multilayer PCBs and modern components in MOSFET technology resulted in compliance with the 6th category cabling and correct tests for 4x250MHz frequency.

Built-in 3-level surge protection using MOSFET technology, effectively eliminate overvoltages induced in cabling and introduce additional separation for ground loop potentials between LAN devices. MOSFET technology also reduces the level of overvoltages that reaches a protected device (UP voltage level) during overvoltage to a value that is a little higher than the rated operating voltage (Un). Obtaining such parameters is impossible in the case of the most commonly used conventional solutions.

Independent PoE protection circuits eliminate the overvoltages between 1.2 - 3.6 and 4.5 - 7.8 pairs in the LAN cable. This solution protects power supplies of LAN equipment against damage due to lightning surges or uncontrolled voltage increase, for example as a result of damage to the PoE power supply. The solutions used are compatible with each PoE standard, including Hi PoE.

The panel has an additional place to mount two modules of the PTF-64 or PTU-64 series, it allows you to extend the surge protection system at any time up to 16 channels. Ensure proper grounding of the surge protector by connecting the supplied grounding cable to PE line. The optional PTU/PTF-COVER protects PCB from dust, it also provides an additional shield against interference.

The best level of surge protection is obtained by installing surge arresters on two sides of the LAN cable. Multi-channel surge protection at the LAN switch side and one-channel surge protection at the LAN device side - for example PTF-61-EXT/PoE.

An example of a complete Gigabit Ethernet surge protection with the use of PTU-68 as a patch panel

Technical specification