Before introducing the six types of unshielded twisted pair, let's briefly understand the definition and classification criteria of the twisted pair.
Twisted pair (TP) is the most commonly used transmission medium in integrated wiring engineering. It consists of two copper wires with an insulating protective layer. The two insulated copper wires are twisted together at a certain density, and the electric wave radiated by each wire in the transmission is cancelled by the electric wave emitted from the other wire, thereby effectively reducing the degree of signal interference.
Twisted pair in computer LAN can be divided into two categories: unshielded twisted pair (UTP) and shielded twisted pair (STP): STP is wrapped by a layer of metal material to reduce radiation and prevent information from being eavesdropped. At the same time, it has a high data transmission rate, but the price is higher, and the installation is more complicated; UTP has no metal shielding material, only one layer of insulating rubber is wrapped, the price is relatively cheap, and the networking is flexible. In addition to some special occasions (such as severe electromagnetic radiation, high transmission quality requirements, etc.) in the use of STP in the wiring, we generally use UTP.
The UTP currently used can be divided into three categories, four categories, five categories, super five, six, and six categories. The larger the type number and the newer the version, the more advanced the technology and the wider the bandwidth, and of course the more expensive the price.
The transmission frequency of this type of cable is 1MHz ~ 250MHz. The Category 6 wiring system should have a large margin in the integrated attenuation crosstalk ratio (PS-ACR) at 200MHz, which provides twice the bandwidth of the super five. The transmission performance of Category 6 cabling is much higher than the Category 5 standard and is best suited for applications with transmission rates above 1Gbps.
An important difference between Category 6 and Category 5 is that it improves performance in terms of crosstalk and return loss. For a new generation of full-duplex high-speed network applications, excellent return loss performance is extremely important.
The basic link model is eliminated in the six categories of standards. The cabling standard adopts a star topology. The required cabling distance is: the length of the permanent link cannot exceed 90 m, and the channel length cannot exceed 100 m.
Six types of unshielded twisted pair cables can transmit data, image and video applications with optimal performance quality and support Gigabit Ethernet 1000Base-T, 1000Base-Tx, with full power sum and near-end crosstalk characteristics, fully in line with future networks Application and development needs. Moreover, the cable uses a traditional round cable design with a thin wire diameter (outer diameter 6.3 mm), which not only ensures the convenience of construction, but also saves investment in the line and pipeline slot.
The six types of unshielded twisted pair consists of 4 pairs of 23AWG single-strand/multi-strand bare copper wire (with HD-PE material covered with copper conductor insulation), cross-isolation bracket and PVC sheath, which meets and exceeds TIA/ EIA568-B.2-1, ISO/IEC118012002 six types of performance requirements, can support existing and future higher bandwidth network application performance requirements.
The main parameters of six types of unshielded twisted pair
product structure:
Conductor material / wire diameter: bare copper or skein copper, ¢ 0.57 ± 0.005mm (23AWG)
Insulation material / wire diameter: polyethylene, ¢ 0.98mm ± 0.02mm
The number of pairs of wires: 4 pairs, two single conductors are twisted together to form a pair. The high-density polyethylene cross-isolation brackets in the middle of the cable are used to distinguish four pairs of wires, which makes the balance of the pair more stable and can effectively prevent the pair between the pairs. The performance caused by the change in the twist is degraded.
Pair color: 1. Orange-white orange 2. Blue-white blue 3. Green-white green 4. Brown-white brown
Pair lay length: each pair is composed of different lay lengths
Skin material / thickness: PVC, CM grade flame retardant PVC, 0.56mm
Finished wire diameter: 6.0mm±0.2mm
Packing specification: carton/shaft, 100m/carton, 305m/carton/axle
Specifications:
TIA/EIA568B
ISO/IEC11801ClassE
CELENECEN50173, EN50167, EN50169
ULC(UL)&ETLVerTIfied
UL/CSAlistedCM/CMR
Compliance with EMC standards, EN55022
Smoke density: in line with GB/T17651-1998 (equivalent to IEC61034)
Toxicity: in accordance with GB/T17650-1998 (equivalent to IEC60754)
Combustion performance: in accordance with IEC60332-1
Physical characteristics:
Bending radius: 4 times cable diameter tensile strength: ≤ 93N;
Maximum pulling force: 25lbs (11.35kg) working environment temperature: -20 ° C to 60 ° C
Storage environment temperature: -20 ° C to 80 ° C
Electrical characteristics (room temperature 20 ° C ± 5 ° C):
Characteristic impedance: 100 ohm ± 15%, 1 MHz to 250 MHz
Transmission delay: 536ns/100mmax.@250MHz
Delay deviation: 25nsmax maximum DC resistance: 6.65ohmsmax/km
Maximum DC resistance imbalance: 3% mutual capacitance @1KHz: 5.6nFmax/100mNVP value: 65%-70
Applications:
IEEE802.3: 100Base-T; 1000Base-T; Gigabit-Ethernet (Gigabit Ethernet) and 155ATM; 622ATM; 1.2ATM; ISDN, FDDI, etc.
ZGAR bar 4000 Puffs
ZGAR electronic cigarette uses high-tech R&D, food grade disposable pod device and high-quality raw material. All package designs are Original IP. Our designer team is from Hong Kong. We have very high requirements for product quality, flavors taste and packaging design. The E-liquid is imported, materials are food grade, and assembly plant is medical-grade dust-free workshops.
Our products include disposable e-cigarettes, rechargeable e-cigarettes, rechargreable disposable vape pen, and various of flavors of cigarette cartridges. From 600puffs to 5000puffs, ZGAR bar Disposable offer high-tech R&D, E-cigarette improves battery capacity, We offer various of flavors and support customization. And printing designs can be customized. We have our own professional team and competitive quotations for any OEM or ODM works.
We supply OEM rechargeable disposable vape pen,OEM disposable electronic cigarette,ODM disposable vape pen,ODM disposable electronic cigarette,OEM/ODM vape pen e-cigarette,OEM/ODM atomizer device.
Disposable Vape, bar 4000puffs, ZGAR bar disposable, Disposable E-cigarette, OEM/ODM disposable vape pen atomizer Device E-cig
ZGAR INTERNATIONAL TRADING CO., LTD. , https://www.oemvape-pen.com