Design kit Lan cable include CAT7 Lan Cable, cat6a cable, cat6 cable, cat5e cable.
Twisted-pair wires are usually made of two 22-26 insulated copper wires wrapped around each other, hence the name "twisted-pair wire".In practice, twisted pair consists of several pairs of twisted pair wrapped together in an insulated cable sleeve.If one or more pairs of twisted-wire is placed in an insulating bushing, it becomes a twisted-wire cable. However, in daily life, "twisted-wire" is generally referred to as "twisted-wire".
Lan Cord,Lan Wire,Lan Cable Connector,Flat Ethernet Cable Shenzhen Kingwire Electronics Co., Ltd. , https://www.kingwires.com
TI's native design: USB car charger reference design with linear line loss compensation
 Design description
This design was created for the TI China Engineers team for automotive electronics applications with the following features:
• Compliance with AEC-Q100 Automotive Certification • USB port constant 5.1V output with 0A to 2.1A load • Linear compensation of 200mΩ line loss at full load current (2m USB cable for automotive)
• D+/D-dispenser mode with 0.3V cable drop compensation • 2.7V/2V, 2V/2.7V and 1.2V/1.2V output and BC1.2 mode • 10W car USB charger supports most smartphones / Tablet fast charging
 
 Design performance
Constant current output 0~2.1A, 5.1V
Differential pressure compensation for 200 milliohm impedance at full load current
Test efficiency increases with load current and efficiency is up to 90% or more (see test report for details)
2 uA current consumption when 270 uA current consumption is not enabled in ultra low power enable state
Compatibility supports USB 2.0 and 3.0
Charging mode Automatically selects the charging mode in non-BC 1.2 devices in accordance with USB's dedicated charging port (DCP) mode
Â
 Design support documentation
• Schematic/Block Diagram • Test Data Report • Design Document • Bill of Materials (BOM)
Device Model Description View Data Sheet Sample
TPS2546-Q1 Automotive USB Charge Port Controller and Power Switch
LM25117-Q1 Wide Input Range Synchronous Buck Controller with Analog Current Management
CSD18503Q5A 40V N-Channel NexFETTM Power MOSFET
INA213A-Q1 automotive voltage, high/low side measurement, two-way zero drift,
Current parallel monitor
TPD2E001-Q1 Automotive Low Capacitance 2 Channel for High Speed ​​Data Interface
+/-15kV ESD protection array
The length of the lan cable are 1000ft (305m), the usable part of a box cable is about 300 meters. To press the RJ45 connectors, usually needs to consider the consumption of part of zhuan degree, so one box of lan cable is 305 meters.
Home Network Cable is called "twisted pair". About twisted pair:
Twisted Pair (TP), the most commonly used transmission medium in comprehensive wiring projects, consists of two insulated copper wires. By stranding two insulated copper wires together at a certain density, the radio waves emitted by each wire during transmission are offset by those from the other wire, effectively reducing the degree of signal interference.
