vlg Communication equipment wiring harness

　　I. Core Product Categories

　　VLG communication equipment wiring harnesses focus on "scenario-specific adaptation + stable signal transmission," primarily serving communication terminals, base station equipment, and IoT hardware. They are divided into three main categories:

　　**Communication Terminal Wiring Harnesses**

　　**Structural Features:** Primarily uses fine-diameter conductors (0.1-0.5mm²), paired with miniature connectors (such as JST PH, Molex PicoBlade), supports multi-core integration (2-24 cores), overall outer diameter ≤8mm, adaptable to compact equipment spaces.

　　**Key Performance:** Transmission rates support 100Mbps-1Gbps; insulation layer uses heat-resistant PVC or TPE materials, meeting operating environment requirements from -20℃ to 70℃.

　　**Typical Applications:** 3G/4G IoT terminals (such as smart water meters, locators), small communication modules (such as Quectel modules), integrated data transmission and power supply connections for POS machines.

　　**Base Station and Outdoor Equipment Wiring Harnesses**

　　**Structural Features:** Uses weather-resistant sheaths (such as...) PE, PU), conductor is multi-strand tinned copper wire (0.5-2.5mm²), some have shielding layer (aluminum foil + braided mesh), supports IP65/IP67 protection level connectors (such as M12, N type)

　　Key performance: Shielding effectiveness ≥60dB (100MHz-1GHz), UV aging resistance (compliant with ISO 4892 standard), low temperature bending performance meets standard (no cracking at -40℃)

　　Typical applications: Outdoor communication base station signal module connection, CPE equipment power and signal composite harness, internal wiring of microwave communication equipment

　　Automotive communication harness

　　Structural features: Compliant with ISO 19642 automotive standard, conductor uses vibration-resistant tinned copper wire, insulation layer is oil-resistant cross-linked polyethylene (XLPE), supports flame retardant rating VW-1, some have integrated shielding layer (copper braided mesh)

　　Key performance: Temperature range -40℃~125℃, vibration resistance (10-2000Hz, acceleration...) 10G), voltage drop ≤0.5V/m (under rated current)

　　Typical applications: Vehicle-mounted 3G/4G communication terminals, automotive-grade GNSS + communication combination modules, vehicle-mounted CPE internal power supply and data transmission

　　II. Core Technical Characteristics

　　Signal Transmission Optimization

　　Shielding Design: To address communication signal interference issues, a double-layer shielding structure of "aluminum foil + tinned copper braided mesh" is adopted to reduce the impact of EMI (electromagnetic interference) on data transmission, especially suitable for the high-frequency signal (1-6GHz) transmission requirements of base stations.

　　Impedance Matching: Through precise selection of conductor cross-sectional area and control of insulation layer dielectric constant, impedance deviation is ensured to be ≤±10% (characteristic impedance 50Ω/100Ω selectable), avoiding signal reflection loss.

　　Enhanced Environmental Adaptability

　　Weather Resistance: Outdoor wiring harnesses pass salt spray testing (500 hours, concentration 5% NaCl) and high and low temperature cycling testing (-40℃~85℃, 100... (Multiple cycles), adaptable to different climate scenarios

　　Mechanical durability: The vehicle wiring harness passes bending tests (≥10,000 cycles, bending radius 10 times wire diameter) and abrasion tests (≥500 friction cycles without damage), coping with vibrations and friction during vehicle operation.

　　Integration and miniaturization

　　Multi-functional integration: Supports multi-circuit integration of "power supply + signal + grounding", reducing the number of wiring harnesses, such as the "12V power supply + gigabit network signal" composite wiring harness in base station equipment, saving installation space.

　　Miniaturized design: Developed 0.8mm pitch connector wiring harnesses for IoT terminals, reducing overall weight by 30% compared to traditional wiring harnesses, adapting to the trend of device miniaturization.

　　III. Customization Services and Compliance Certification

　　Customization Process

　　Requirements survey (transmission requirements / environmental parameters / installation space) → Solution design (conductor selection / shielding structure / connector matching) → Sample production (3-5 days) → Performance testing (conductivity, shielding effectiveness, temperature resistance) → Mass production optimization reduces the overall cycle time to 2-3 weeks.

　　Compliance and Certification

　　Products comply with international and industry standards, including UL 758 (US wiring harness safety standard), CE certification (EU electromagnetic compatibility), ISO 19642 (automotive wiring harnesses), and RoHS 2.0 (environmental requirements). Some models have passed operator-customized certifications (such as ATT and Orange equipment matching certifications).

　　Benchmark Cooperation Cases

　　Providing outdoor weather-resistant wiring harnesses for ZTE base station equipment, miniature communication wiring harnesses for Hikvision IoT terminals, and automotive-grade communication wiring harnesses for automotive terminal manufacturers (such as Desay SV), ensuring stable equipment operation.

　　IV. Selection Recommendations

　　Small IoT Communication Terminal Scenarios: We recommend communication terminal wiring harnesses, with key considerations including conductor cross-sectional area of 0.1-0.3mm², miniature connectors (pitch ≤1.25mm), and a temperature resistance range of -20℃ to 70℃, suitable for compact equipment spaces and indoor/semi-outdoor environments.

　　Outdoor Base Stations and CPEs Scenario 1: For base stations and outdoor equipment, we recommend wiring harnesses with a double-layer shielding structure (shielding effectiveness ≥60dB), IP65/IP67 protected connectors, and UV-resistant sheaths to ensure stable signal transmission under complex weather conditions.

　　Scenario 2: For vehicle communication equipment, we recommend vehicle communication wiring harnesses with compliance with ISO 19642 standards, a temperature range of -40℃ to 125℃, vibration resistance (10-2000Hz), and a VW-1 flame retardant rating to adapt to the harsh environment of vehicle operation.