LSZH RS485 Bus Cable 2 Pair 20AWG Overall Shielded 120Ω

Zhejiang Chatnow New Material Technology Co., Ltd. is one of the leading manufacturers and suppliers of lszh rs485 bus cable 2 pair 20awg overall shielded 120ω in China. With abundant experience, we warmly welcome you to wholesale bulk high quality products at competitive price from our factory. We also accept customized orders.

This cable adopts 20AWG stranded bare copper conductors, foam PE insulation, individual twisted pairs, aluminum foil + tinned copper braid overall shielding, and FR-LSZH (Flame Retardant Low Smoke Zero Halogen) outer jacket. The dual-layer shielding structure effectively reduces external electromagnetic interference and ensures reliable communication in industrial environments.

With a characteristic impedance of 120Ω ±10Ω, this cable meets the typical requirements of RS-485 communication networks, making it suitable for automation control, security systems, building management, and industrial fieldbus applications.

The RS485 Overall Shielded Cable is widely used in:

Industrial Automation

• PLC communication systems
• Industrial controllers
• Factory automation equipment
• Remote I/O modules
• Machine communication networks

Building Automation

• HVAC control systems
• Building management systems
• Smart lighting control
• Access control systems

Security & Monitoring Systems

• CCTV communication networks
• Alarm systems
• Security equipment
• Data acquisition systems

Energy & Infrastructure

• Smart meters
• Power monitoring systems
• Solar energy monitoring systems
• Battery management systems

Transportation & Public Facilities

• Railway communication systems
• Traffic control equipment
• Intelligent transportation systems

Recommended standard length:

• 100m / coil
• 305m / reel
• Customized drum length available

Packaging advantages:

• Moisture protection
• Easy installation
• Reduced transportation damage

Structural Design & Signal Benefits

Conductor Design

• Excellent electrical conductivity

• Improved flexibility compared with solid conductors

• Suitable for repeated installation and industrial wiring

Foam PE Insulation

• Low dielectric loss
• Stable signal transmission
• Reduced capacitance
• Improved communication distance

Twisted Pair Construction

• Reduces electromagnetic interference
• Minimizes crosstalk between signal pairs
• Improves RS485 differential signal stability

Double Shielding Structure

Shielding system:

• Aluminum/Mylar foil shielding
• Tinned copper braid shielding
• Tinned copper drain wire
• Braid coverage: 80%

Signal Protection Benefits:

✔ Excellent EMI/RFI protection
✔ Reduced external noise interference
✔ Stable communication in industrial environments
✔ Suitable for high-frequency disturbance areas

FR-LSZH Outer Jacket

• Low smoke emission
• Halogen-free safety performance
• Flame retardant protection
• Suitable for enclosed public environments

FAQ

Q1: What is the difference between this cable and ordinary RS485 cable?

This cable uses dual shielding (Al/Mylar foil + tinned copper braid), providing better EMI protection compared with standard

single-shield RS485 cables.

Q2: Why use LSZH material for the jacket?

LSZH material produces lower smoke and no halogen gas during combustion, improving safety in enclosed environments.

Q3: Can this cable be used outdoors?

The standard version is mainly designed for indoor and industrial applications. For outdoor installation, additional UV-resistant

and waterproof protection may be required.