Overspenningsvern for LAN og IP-kamera, PTF-1-PRO/PoE
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- Kode: PTF-1-PRO/PoE
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Overspenningsvern for LAN og IP-kamera, designet for Ethernet 100Base-T og CCTV-løsninger, produsent, PTF-1-PRO / PoE
Product discontinued - has been replaced by PTF-51-PRO/PoE
PTF-1-PRO/PoE is economic protection for IP CCTV cameras. It protects from effects of surge and lightning and vandalism (effect of stun guns). It may be using in systems of local LAN network to protection of overhead lines between buildings, to protects connections between switches for cable of 6 category. The device has individually protection of each transmission pair, where after crossing voltage above 90V, followed short circuit its to ground. 4, 5 and 7, 8 cables are connected together, to increase current flowing for a PoE standard (Power over Ethernet). By using innovative components PTF-1-PRO/PoE Protection has very low capacity and high reaction speed, which have negligible effect on high-frequency signals transmitted, very short reaction time and ability to multiple response.
Built-in automatic fuses protects PoE power supply from damage, in event of short circuit at power supply of receiving device. Also built-in LEDs, signaling presence of power supply entering and exiting from PTF-1 protection.
Construction of circuit is completely shielded from bottom and from top, which provides high immunity to electromagnetic interference and continuity of screen between input and output. Screen has independent circuit protection, so that it is not permanently connections with ground. This is important for risk of potential differences and appearing of parasitic signals.
Construction was constructed very carefull in terms of PCB placement, to protect from appearing crosstalk between channels and introducing of delays between cores. The device can be using in LAN network of 6 category.
For correct operation is needed connecting a ground cable. For this purpose should be used a probe embedded into the ground, which is located as close as possible of surge protection. In any case, do not connect to protection cable of electrical installations or to existing installation of lightning.
Simplified block diagram
Example of protection one LAN connection
Example of protection 16-point one LAN network
PARAMETER NAME | VALUE |
Data protection | |
---|---|
LAN channels | 1 |
Category | 100Base-T(100Mbit) network, using 5/5e/6 category twisted-pair |
Input connector (LINE) | Male RJ-45, shielded |
Output connector (DEVICE) | Male RJ-45, shielded |
Related Voltage DC (wire-ground) UN | 90V DC |
Maximum continuous operating voltage (wire-ground) UC | 110V DC |
Threshold voltage 1kV/μs (wire-ground) UP | 600V |
Protection level C1 (8/20µS, wire-ground ) Iimp | 100A (300 times) |
Protection level C2 (8/20µS, wire-ground ) Iimp | 2-4kA (10 times) |
Related Voltage DC (shield-wire) UN | 350V DC |
Protection level C2 (8/20µS, shield-ground) Iimp | 10kA (10 times) |
Related Voltage DC (wire-wire) UN | 6V DC |
Maximum continuous operating voltage (wire-wire) UC | 6,8V DC |
Threshold voltage 1kV/μs (wire-wire) UP C3 | 20V |
protection level C1 (8/20µS, wire-wire) Iimp | 100A |
Protected pairs | 1-2, 3-6, (4+5)-(7+8) |
Capacity (wire-wire) @1MHz | 7-9pF |
Capacity (wire-ground) @1MHz | 1pF |
Decoupling component | Surge resistor |
Serial Resistance | 2,2Ω / line |
Nominal current IN | 300mA / line |
PoE protection | |
Related Voltage DC (wire-wire) UN | 58V DC |
Maximum continuous operating voltage (wire-wire) UC | 64V DC |
Threshold voltage (10/1000µS ,wire-wire) UP C3 | 93V |
Protection level (10/1000µS, wire-wire) Iimp C3 | 6,4A |
PoE standard | IEEE 802.3af, B-type |
Common | |
Dimensions | 65 x 30 x 40 (mm) |
Application | Indoor / outdoor with additional IP66 housing |
Mount | Standalone / Wall mount |
Tightness | IP54 |
Operating temperature | -30ºC~60ºC |