278 results about "Twisted pair" patented technology

The invention relates to the technical field of hydropower engineering, and discloses a single-core self-healing type looped network networking method and system, and the method comprises the steps: dividing a whole network into a plurality of sub looped networks; each sub-ring network operates independently; the light switch in each sub-ring network adopts an A / B end connection mode; reversely connecting the B end of the last measuring point to the A end of the initial measuring station by using an optical fiber to form a closed physical structure; configuring a protocol on the switch, and controlling a data flow path through the protocol; different sub-ring networks are connected through RJ45 ports, and a CAT5E shielded twisted pair or an Ethernet interface is used; when a certain node or link fails, the protocol automatically triggers a switching mechanism; the master station optical transceiver monitors the states of all nodes in real time and displays fault points through a network management interface. The system comprises a sub-ring network module, a control data flow module and a fault point display module. The problems that a traditional networking method of hydropower engineering is poor in reliability, and self-healing cannot be achieved after an intermediate node is disconnected are successfully solved.

The invention discloses a multi-channel high-precision water level dynamic real-time monitoring system for a drilling water pumping test, and the system comprises a sensing layer which is used for deploying a multi-source sensor array, inhibiting interference through distributed layout and electromagnetic shielding, collecting multi-dimensional data in real time, and carrying out the preliminary filtering; according to the transmission layer, an optical fiber and twisted pair redundant network is constructed, an EtherCAT protocol is adopted for low-delay transmission, AES-128 encryption tampering prevention is integrated, and edge nodes compress data and verify integrity; the processing layer is used for carrying out real-time preprocessing on edge calculation and switching a standby sensor in abnormal detection; the cloud end predicts the water level trend through Spark Streaming analysis and an LSTM model, distinguishes interference through a random forest algorithm, and outputs calibration data and an analysis report; the application layer is used for constructing a three-dimensional drilling model based on Unity, dynamically displaying water level changes, synchronizing a multi-parameter curve and supporting historical backtracking; the early warning module notifies abnormity through sound and light and short messages, the decision module generates a report and supports multi-drill-hole comparison, and the test strategy is optimized.

The invention provides an analysis method and device for flow, efficiency and water consumption rate of a hydraulic power plant generator set. A distributed flow measurement unit based on a domestic PLC controller and a domestic operating system is constructed, and each unit is independently configured with the flow measurement unit to realize decentralization of data acquisition and processing; active power, guide vane opening, water head difference, instantaneous flow and volute inlet pressure data are collected in real time through a distributed flow measurement unit, and a unit efficiency and water consumption rate calculation model is dynamically fitted based on the data; sending an output result of the calculation model to a monitoring system through an anti-interference communication network, wherein the communication network adopts layered wiring and a double-shielded twisted pair to reduce the signal bit error rate; and the IMC integrated management and control platform is used for remote monitoring and diagnosis of the flow measurement unit, and seamless connection with a smart power plant data medium station is realized. The system reliability and the maintenance flexibility are improved, and the autonomous controllable requirements of domestic substitution and intelligent power plants are comprehensively met.

An aspect of the present disclosure is directed to a connector. The connector is suited to connectorizing exactly two conductors. The connector includes a forward connector body, a rear connector body, a metal frame and exactly two electrical contacts. The rear connector body interfaces with the forward connector body. Further, the metal frame, which includes a shielding interface, surrounds at least a portion of both the forward and rear connector bodies. The electrical contacts extend from the rear connector body into the forward connector body. A first of the electrical contacts is electrically coupled to a first conductor of a shielded cable and the second of the electrical contacts is electrically coupled to a second conductor of the shielded cable. The shield interface of the metal frame is electrically coupled to the shield of the shielded cable.

The invention discloses a twisted pair crimping system and a twisted pair crimping method. The twisted pair crimping system comprises a cable clamp used for clamping and fixing a twisted pair, and each conductor core of the twisted pair comprises a plurality of conductive wires twisted together; the moving device is used for moving the cable clamp and the twisted pair in the horizontal direction perpendicular to the axial direction of the twisted pair; and the artificial intelligence visual device is arranged at the detection station and can simulate human eyes to identify the actual number of the conductive wires of each conductor core of the twisted pair. And when the artificial intelligence visual device recognizes that the actual number of the conductive wires of the conductor core is not equal to the preset number, the artificial intelligence visual device judges that the twisted pair is unqualified. According to the invention, the artificial intelligence visual device can simulate human eyes to identify the actual number of the conductive wires in the conductor core of the twisted pair. Therefore, whether the quality of the twisted pair is qualified or not can be judged in advance according to the identified actual number of the conductive wires in the conductor core, and the quality of the twisted pair product is improved.

The invention discloses a twisted pair crimping system and a twisted pair crimping method. The twisted pair crimping system comprises a cable clamp used for clamping and fixing a twisted pair; the moving device is used for moving the twisted pair; the artificial intelligence visual device can simulate human eyes to identify the actual positions of the geometric centers of the two conductor cores of the twisted pair moved to the detection station and the actual distance between the geometric centers of the two conductor cores; the position calibration device is suitable for calibrating the crimping position of the twisted pair according to the position deviation between the actual position and the preset ideal position when the actual distance is not smaller than the preset safety distance, so as to eliminate the position deviation; and the crimping device is arranged at the crimping station and is used for crimping the conductor core onto the terminal. When the conductor core is moved to a predetermined crimping position, a geometric center of the conductor core is located on a centerline of the terminal. According to the invention, the crimping position of the conductor core of the twisted pair can be calibrated according to the identified position deviation, and the crimping precision and quality of the twisted pair are improved.

The invention discloses a differential bus transmission verification system based on a digital ink-jet printer and a printer, and relates to the technical field of printing equipment data transmission, the system comprises a first main control module, a second main control module, 14 pairs of differential signal lines, a downlink channel and an uplink channel, a dynamic verification module adjusts the bit width of a verification code according to the type of a data packet, and the downlink adopts an enhanced CRC algorithm. An odd-even, accumulation and combination algorithm is used for uplink, the algorithm can be switched and retransmission is carried out when continuous error data packets are encountered; a time sequence control module is used for measuring transmission delay, adjusting a clock phase and guaranteeing transmission accuracy; a self-defined bus protocol is divided into three layers; a data packet structure and printing instruction analysis are stipulated; the system has an exception handling mechanism, speed reduction, redundant channel cutting, error recording and diagnosis report generation are performed when verification fails and exceeds a threshold value, a differential signal line is of a twisted-pair structure, signal stability is ensured, and the system is used for connecting a printer with a printing head drive and a motion platform and transmitting a control instruction to ensure reliable and stable data transmission.

The utility model provides a portable twisted pair twisting device. The portable twisted pair twisting device comprises a shell, a driving assembly arranged in the shell, a clamping assembly and a manual opening and closing assembly, the clamping assembly and the manual opening and closing assembly are arranged outside the shell, the manual opening and closing assembly controls the clamping assembly to perform opening and closing actions, and the driving assembly controls the clamping assembly to perform circumferential rotation actions. The manual opening and closing assembly and the driving assembly can control the clamping assembly to act independently or cooperatively. The portable twisted pair twisting device provided by the utility model solves the problems of low efficiency and easy finger scratching of the existing twisted pair untwisting mode.

The invention discloses a twisted-pair cable processing system, a twisted-pair cable cutting method and a twisted-pair cable untwisting method. The twisted-pair cable processing system comprises: a frame; and the core wire untwisting device is mounted on the rack and is used for untwisting a pair of exposed core wires of the twisted-pair cable. The core wire untwisting device comprises a mounting plate which is fixed on a rack; the rotating wheel is rotationally mounted on the mounting plate, and a mounting hole penetrating in the axial direction is formed in the rotating wheel; the positioning body is embedded into the mounting hole of the rotating wheel and is provided with a pair of core wire insertion holes; and the driver is used for driving the rotating wheel and the positioning body embedded in the rotating wheel to rotate together. And when the end parts of a pair of exposed core wires of the twisted-pair cable are inserted into the pair of core wire jacks, the driver drives the rotating wheel and the positioning body to rotate so as to untwist the pair of exposed core wires of the twisted-pair cable. Therefore, the untwisting of a pair of core wires of the twisted-pair cable can be automatically realized, and the production efficiency is improved.

The invention belongs to the technical field of synchronous control, and particularly relates to a synchronous control system and method for vibration suppression and quality monitoring of twisted pairs, and the method comprises the following steps: S1, obtaining the measurement data of an acceleration sensor and a laser displacement sensor array on a twisted pair production line, a real-time vibration vector field of the twisted pair in the monitoring area is constructed through data fusion; based on the real-time vibration vector field, utilizing a Hamiltonian agent model to predict the vibration energy state of the twisted pair in a future prediction time window; and S2, adjusting a weight coefficient for minimizing the weighted sum of the predicted vibration energy and the control increment norm in real time according to the twisting quality characteristic index calculated in the previous control period. According to the method, conversion from passive response to active predictive suppression is realized, optimal control measures can be taken before vibration deterioration, and the timeliness of vibration suppression is improved.

The invention discloses a twisted-pair cable posture adjusting method and a twisted-pair cable processing method. The twisted-pair cable attitude adjustment method comprises the following steps: shooting an image of an end face of a twisted-pair cable; calculating the attitude of the twisted-pair core wire of the twisted-pair cable at the end surface according to the shot image; calculating the initial attitude of the twisted-pair core wire at the cutting position of the outer coating layer to be stripped according to the attitude of the twisted-pair core wire at the end surface, the length of the outer coating layer to be stripped from the twisted-pair cable and the twist pitch of the twisted-pair cable; according to the initial attitude of the twisted-pair core wire and the predetermined attitude of the twisted-pair core wire, calculating an adjustment angle of the twisted-pair cable needing to be rotated; and rotating the twisted-pair cable around the central axis of the twisted-pair cable to adjust the angle, so that the twisted-pair core wire is adjusted to a preset posture. According to the invention, before the outer coating layer of the twisted-pair cable is stripped, the adjustment angle required to be rotated for adjusting the twisted-pair core wire of the twisted-pair cable to the predetermined attitude can be accurately obtained, and the processing efficiency and precision of the twisted-pair cable are improved.

The invention discloses a twisted-pair cable processing system and a twisted-pair cable cutting method. The twisted-pair cable processing system comprises: a frame; and the core wire cutting device is mounted on the rack and is used for cutting a pair of exposed and untwisted core wires of the twisted-pair cable. The core wire cutting device comprises a positioning body which is provided with a cable jack allowing one end of a twisted-pair cable to be inserted and a pair of core wire jacks allowing a pair of exposed core wires of the twisted-pair cable to pass through; and the cutting tool is arranged behind the positioning body and is used for cutting a pair of exposed core wires of the twisted-pair cable. A positioning reference surface perpendicular to the axial direction of the core wire jack is formed in the cable jack, and the positioning reference surface is used for being axially attached to the cutting end face of the outer coating layer of the twisted-pair cable so as to axially position the twisted-pair cable and ensure that a pair of exposed core wires of the cut twisted-pair cable have a preset length.

To provide a connector structure which can prevent degradation in terminal holding force for an outer terminal and in electrical connection reliability between the outer terminal and a braid, in a shield connector using a twisted pair wire.SOLUTION: A connector structure comprises: an inner sleeve 6 which has a front crimping part 60 located on an end side of a shield wire 10 so as to be caulked in an overlapping manner and a rear crimping part 64 that has an outer shape smaller than that of the front crimping part 60 and is located on a depth side of the front crimping part 60, and which is disposed over an outer peripheral side of a braid 13 exposed from an end of a sheath 14; and an outer terminal 21 having a shield body 22 which covers an outer periphery of an inner housing 4 for housing an inner terminal, and a caulking part 23 which extends from the shield body 22, and is provided with a first crimping part 25 and a second crimping part 27 respectively crimped to outer peripheral shapes of the front crimping part 60 and the rear crimping part 64 so as to be electrically connected to a folded portion 13a of the braid 13 that is folded back and disposed over an outer peripheral side of the inner sleeve 6.SELECTED DRAWING: Figure 8

Methods of design, manufacture and implementations of balanced twisted pair cables with a barrier tape or shield, with tuned attenuation, impedance, and coupling properties. A filler is included within the cable to separate the pairs and provide a support base for the shield, allowing for optimized ground plane uniformity and stability for tuned attenuation, impedance, and coupling properties. The filler orientation, shape, and size provides support for the shield such that a gap is provided between the shield and the twisted pairs with a given minimum size without increasing the maximum cable core size. The length of arms of the filler may be adjusted to fine-tune the size and shape of this gap and control air-dielectric volume and radial contact or spacing between any pair(s) and the shield, tuning electrical performance characteristics caused by non-linear effects of electromagnetic interactions at short ranges between the pairs, shield, filler, or other components.

The utility model discloses a flexible high frequency data cable, include: conductor, the extrusion of conductor has PE insulating layer and forms core, is provided with foamed layer on PE insulating layer, the thickness of foamed layer accounts for 75% of PE insulating layer total thickness, and the foaming rate of foamed layer is 60%~65%, and every two core wire pairs form a pair of double -twisted pair, and the twisting pitch of every pair of double -twisted pair is different, and the aluminium -plastic composite tape is wrapped on double -twisted pair, and four pairs of double -twisted pair with aluminium -plastic composite tape are twisted into cable core, and the overlap gap of aluminium -plastic composite tape on each double -twisted pair all faces outward, and the tinned copper wire braid is woven on cable core, and the tinned copper wire braid covers and presses on the overlap gap of aluminium -plastic composite tape, and the weaving density of tinned copper wire braid is 70%, and the tape is wrapped on tinned copper wire braid, and the sheath is extruded on tape. The utility model can prevent the signal crosstalk between double -twisted pair without heat sealing to aluminium -plastic composite tape, thereby protecting PE insulating layer from being damaged.

The utility model relates to the technical field of mutual inductors in electrical equipment, in particular to an integrated sleeve type electronic current transformer. Comprising an insulation packaging structure, a conducting rod, a current measuring module and a capacitance monitoring module, the insulation packaging structure is a fully-sealed sleeve-shaped epoxy resin shell formed by pouring epoxy resin, a wiring platform is arranged on the side face of the epoxy resin shell, the conducting rod axially penetrates through the insulation packaging structure, and the two ends of the conducting rod are exposed; the capacitance monitoring module comprises a capacitance wiring terminal and a capacitance induction net, the capacitance induction net sleeves the outer side of the conducting rod, the capacitance induction net and the conducting rod form a monitoring capacitor, and the capacitance wiring terminal is arranged on the wiring platform and is connected with the capacitance induction net; the current measuring module comprises a coil device body and a current shielding twisted pair, the coil device body is sleeved on the outer side of the capacitance induction net, and the current shielding twisted pair is connected with the coil device body. The current measuring and capacitance state monitoring device integrates functions of current measurement and capacitance state monitoring, and is highly compact in structure and low in cost.

The utility model discloses a high-speed serial bus transmission circuit, which comprises a main control circuit, and the main control circuit comprises an FPGA (field programmable gate array), a CLKIO (clock line input / output), a DATAIO (data address input / output) and an LTC2879XMS8E chip. An acquisition node circuit, wherein the acquisition node circuit comprises an FPGA (Field Programmable Gate Array), a CLKIO, a DATAIO and an LTC2879XMS8E chip; and a level conversion circuit, wherein the level conversion circuit comprises a resistor and an LTC2879XMS8E chip. According to the utility model, the circuit structure design is optimized, through the arrangement of the master control circuit, the acquisition node circuit and the level conversion circuit, the communication between one master control and a plurality of acquisition nodes is realized, the acquisition nodes are distinguished by different addresses, the communication efficiency is high, the external common-mode noise can be completely counteracted, and the reliability is high. Signals are transmitted in a differential mode, the anti-interference capacity of communication is improved, the structural design that the two sets of shielding twisted pairs are combined is adopted, the two wires are close to each other and equal in signal amplitude, the amplitudes of coupling electromagnetic fields between the two wires and the ground wire are also equal, the signal polarities of the two wires and the ground wire are opposite, and according to the right-hand spiral rule, the signal polarities of the two wires are different. The magnetic lines of force are mutually offset, and the anti-electromagnetic interference capability is strong.

The invention discloses a subminiature three-coaxial differential self-locking high-temperature-resistant assembly and a connector, and relates to the technical field of radio frequency connectors, the subminiature three-coaxial differential self-locking high-temperature-resistant assembly comprises a shell, an outer shield is arranged in the shell, an outer insulator is arranged on the inner side of the outer shield, and an inner shield is arranged on the inner side of the outer insulator. According to the subminiature three-coaxial differential self-locking high-temperature-resistant assembly and the connector, efficient electromagnetic isolation is formed by the double shielding layers composed of the outer shielding layer and the inner shielding layer and the inner conductor, radio frequency leakage and signal crosstalk can be remarkably inhibited through cooperative use of the structures, the problem that a traditional double-coaxial structure is insufficient in shielding is solved, and meanwhile, the connector is high in reliability. The inner shielding layer and the outer shielding layer of the twisted pair are respectively welded with the inner shielding layer and the outer shielding layer, the continuity of the shielding effect is ensured, the connecting seat is made by sintering glass powder and is provided with a conductive silver powder sealing ring, the stability at high temperature is ensured, good grounding continuity is also provided, and the overall electromagnetic compatibility performance is further enhanced.

This invention provides a single-ended impedance detection method for conductive cables based on current source excitation, applicable to detecting the resistance and self-inductance of conductive cables of any material, length, and diameter. The method divides the conductive cable into two bundles (e.g., in twisted-pair applications). By injecting a current source excitation signal near the cable end, the voltage and current at the near end are detected, yielding the cable's resistance and self-inductance parameters. This invention eliminates the need for auxiliary components at the load end, accurately obtains cable resistance and self-inductance values, has simple logic, is easy to implement, and can be applied to any power supply system.

The invention provides a transmitting end, a receiving end, and a signal transmission system and method. Relates to the technical field of data transmission, and a transmitting end receives one or more of an HDMI signal, a USB signal, a control signal and a power supply signal through a corresponding interface. Each signal is converted into a plurality of signals transmitted by an adaptive network cable based on a processing chip or a processing module corresponding to the sending end; a chip for processing HDMI signals and a chip for processing USB signals are integrated on the main control board of the sending end, and the receiving end is similar to the chip, so that the cost is reduced. Furthermore, the plurality of signals are transmitted to a receiving end in a signal partition manner through a network cable comprising a plurality of pairs of twisted pairs, so that the receiving end restores and outputs the signals received and separated from the network cable through corresponding processing chips or processing modules, for an HDMI signal sending end, the HDMI signal is converted into a target format, and a compressed signal is compressed, output and transmitted to a receiving end through a network cable, so that the cost is reduced, HDMI and USB signals are simultaneously transmitted through a single network cable, and wiring is reduced.

The utility model relates to communication cable technical field discloses a kind of super six kinds of unshielded communication cable, comprising: outer sheath, inner sheath and twisted pair, inner sheath inner wall is equipped with inner tooth, inner sheath inside is equipped with cross skeleton, inner sheath and cross skeleton between are equipped with twisted pair, inner sheath outer wall is equipped with outer tooth, outer tooth between is equipped with gap, inner sheath outside is equipped with outer sheath, the outer wall of cross skeleton is equipped with reinforcing rib plate, the recess of the utility model inner tooth can disperse the stress when cable bending, cooperate cross skeleton and reinforcing rib plate, prevent twisted pair displacement or deformation, maintain the long-term stability of transmission characteristic, while the inner tooth of discrete distribution increases the friction of sheath and line pair, promote the tensile capacity of cable whole, applicable to complex wiring environment.

The utility model discloses a digital intelligent monitoring system for voltage of a hydrometallurgy electrolytic bath. The digital intelligent monitoring system comprises an electrolytic bath voltage collector, an electrolytic bath voltage wireless receiving and processing controller, an industrial serial port server, an industrial switch and an upper computer, the electrolytic bath voltage collector and the electrolytic bath voltage wireless receiving and processing controller complete wireless local area networking through a wireless LORA network and are used for data interaction between the electrolytic bath voltage collector and the electrolytic bath voltage wireless receiving and processing controller; the industrial serial port server is connected with the electrolytic bath voltage wireless receiving and processing controller through a twisted-pair signal line and used for communication protocol conversion, and the industrial switch is connected with the industrial serial port server through a network cable and used for data transmission; the upper computer is connected with the industrial serial port server through a network cable and used for uploading the cell voltage data to the upper computer.

An assembly configured to receive twisted pairs of conductors terminated by a miniplug and a pair of conductor contacts. The assembly comprises a housing comprising a first surface comprising a socket disposed therein; wherein the socket is configured to accept a plurality of miniplugs, illustratively in a 2×2 configuration, wherein pairs of socket contacts are exposed along at least one side wall of the socket and wherein the socket contacts are configured to be aligned with the conductor contacts such that each of the conductor contacts is in contact with a respective one of the socket contacts. A caddy is also provided which allows the miniplugs to be arranged in a 2×2 arrangement for subsequent insertion into a socket or the like.

The invention discloses a vehicle-mounted Ethernet PHY (Physical Layer) chip interconnection and intercommunication test system. The architecture of the system comprises an FPGA (Field Programmable Gate Array) platform, upper computer software, a chip to be tested, an AWGN transmitter and a signal adapter plate. Wherein the FPGA platform has dual functions of a link partner (LP) and a test case library: when the FPGA platform is used as the link partner, a 100 / 1000 BASE-T1 physical layer protocol is realized through programming, and single twisted pair communication is established with a DUT through an MDI interface; and when serving as a test case library, the test case library comprises preset interconnection and intercommunication test cases and supports user-defined test cases. The upper computer software adopts a graphical human-computer interaction interface, supports test case parameter configuration, realizes full-process automation of test signal generation and test result judgment, and generates a standard test report. Meanwhile, the system is integrated with the AWGN transmitter and the signal adapter plate, Gaussian white noise can be added into a transmission link, and the real environment of the vehicle is simulated. According to the system, hardware programmability and software automation are combined, so that the testing efficiency and flexibility of the vehicle-mounted Ethernet PHY chip are remarkably improved.

The invention discloses a nanosecond square wave transient impedance tower grounding defect on-line detection method and system. The method comprises the steps that distributed potential sensors are arranged on the periphery of a tower grounding body, and multi-channel synchronous acquisition is established; injecting a rectangular pulse signal into the grounding down lead, and superposing a damping sine component subjected to frequency response compensation; synchronously acquiring voltage and current responses, calculating a transient impedance differential ratio, a total harmonic distortion rate and a wavelet packet energy entropy, and judging a defect type according to a preset threshold value and a weighted fusion criterion; constructing and solving a ground potential field model, and positioning a defect position; the system is composed of a nanosecond square wave generator, a distributed potential sensor, a data acquisition and synchronization module, a signal analysis module and a ground potential tomography module, and sensor signals are subjected to differential transmission through a twisted-pair shielding cable to suppress interference. According to the invention, rapid and accurate identification and positioning of the grounding defect of the tower under the non-power-off condition are realized, the identification rate is high, and the positioning precision is excellent.

A jacketed cable includes a first twisted pair formed by a first insulated conductor twisted with a second insulated conductor with a first dielectric tape residing therebetween. The first dielectric tape may foamed and / or include a plurality of through holes with sizes and spacings to tune impedance and / or balance a delay skew amongst multiple twisted pairs and / or reduce crushing of the first and second insulation layers of the first and second conductors. A method of manufacturing may optionally include heating or chilling the first dielectric tape and / or chilling the first and second insulated conductors prior to forming the first twisted pair to a temperature different from the ambient temperature, thereby tuning the impedance of the first twisted pair and / or adjust the delay skew of the first twisted pair relative to other twisted pairs and / or reduce crushing of the first and second insulation layers of the first and second conductors.

The utility model belongs to the technical field of elevator cables, and discloses a fatigue-resistant tensile accompanying communication photoelectric composite transmission cable for an elevator, which comprises a cable jacket, a twisted-pair shielding optical cable is arranged in the cable jacket, a cable sheath is arranged on the outer side of the cable jacket, and a cable sheath is arranged on the outer side of the cable sheath. The inner part of the cable sheath is filled with a power line and an inner ring 1, the inner part of the inner ring 1 is inserted with a steel wire reinforcing line, and the middle part of the outer side of the cable sheath is provided with a tearing groove. According to the elevator cable, the steel wire reinforcing wires can be additionally arranged in the cable sheath and the cable jacket, so that the bending frequency of the elevator cable in the using process is increased, the pulling resistance of the elevator cable is enhanced under the condition of strong displacement, the elevator cable is protected, and the service life is prolonged.

The invention relates to the technical field of cable production equipment, in particular to an intelligent pair-twisting and cabling system of an unshielded horizontal pair-twisted wire network cable, which comprises a cable pair-twisting mechanism, a guide mechanism and a cabling mechanism which are arranged on a machine base, and is characterized in that the machine base is also provided with a driving mechanism for driving the cable pair-twisting mechanism; the pair twisting mechanism comprises two cable racks, a cable wheel, a vertical seat, a pair twisting ring and a tensioning wheel, wherein bearings of the cable wheel are installed on the two cable racks, the vertical seat is arranged on one sides of the two cable racks, and a cable guide wheel is rotationally installed in the vertical seat. According to the intelligent pair-twisting and cabling system for the unshielded horizontal pair-twisted wire network cable, synchronous action of the cable rack and the adjusting mechanism is realized through gear transmission of the driving mechanism and synchronous driving of the transmission shaft, and uniform pitch of a pair-twisted wire core is ensured in cooperation with precise guiding of a pair-twisting ring; dynamic tensioning of the adjusting mechanism is matched with limiting of the linkage structure, cable deviation and abrasion are avoided, the cable core quality is improved, and the transmission performance of the cable is guaranteed.

A network cable has four twisted pairs. Each twisted pair includes first and second insulated conductors of 21 AWG. Each twisted pair includes a bisector tape located between the first and second twisted insulated conductors. The 21 AWG conductor allows for longer distance transmission of data and PoE. A thinner wall of insulation on 21 AWG conductors allows the network cable to be terminated to industry standard RJ45 jacks and plugs, which were designed to accommodate 22-24 AWG insulated conductors, while the bisector tapes allow the network cable to exhibit nominal 100 ohm impedance between the insulated conductors of each twisted pair.

The invention discloses a manufacturing process of a 10-gigabit Ethernet cable for a vehicle, and belongs to the technical field of cable manufacturing, and the manufacturing process comprises the following steps: 1, processing an oxygen-free copper wire by using a high-strength polycrystalline stranding wire-drawing die to realize surface treatment and outer diameter processing of the oxygen-free copper wire to obtain a conductive wire core; step 2, performing coating processing on the conductive wire core obtained in the step 1 by adopting a foaming PP formula and matching with a nitrogen injection mode, and uniformly forming an insulating protection layer on the surface of the conductive wire core to obtain a high-conductivity wire core; 3, pouring a high polymer material into an extruder, and carrying out coating processing of an insulating layer on the high-conductivity wire core obtained in the step 2 by using the extruder through a special mold to obtain a high-insulation wire; through the mutual cooperation of the twisted pair structure and the plurality of shielding layers, the electromagnetic compatibility of the cable is higher, and through the use of the oxygen-free copper wires, the internal resistance of the cable is reduced, and the twisted pair balance is improved.