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■ Common Applications of RS485 Cable (Detailed Guide)

RS485 cables find a great deal of application in industrial automation, intelligent building control, transport mechanisms, and energy efficiency due to their extended transmission range, better resistance to electromagnetic interference, and the ability to communicate with multiple nodes.

I Industrial Automation Systems

Applications:

Facilitate communication among PLCs, DCS systems, inverters, sensors, and other equipment employed in industry.

Exploited for information collection as well as for control signal transfers.

Cable Requirements:

Long-distance transmission (up to 1200 meters).
Superlative EMI shielding.
Usually use double-shielded RS485 cables (foil + braid).

Example:

In an automotive assembly line, RS485 cables serve the function of connecting several PLCs, which ensure the procedure's synchronization by keeping the robotic arms and conveyor belts in motion and detecting the parts.

II Building Automation & Smart Buildings

Applications:

HVAC control (heating, ventilation, air conditioning).
Intelligent light fixtures (automatic on/off, dimming).
Elevator operation.
Entry control, time attendance, alarm connections.

Cable Requirements:

True signal transmission.
Support for multi-dropped bus topology.
Often utilize foil-shielded or unshielded RS485 cables in an indoor environment.

Example:

In a smart office building, a more efficient energy-saving operation is achieved using an RS485 bus to connect floor lighting, which is centrally controlled.

III Intelligent Transportation Systems (ITS)

Applications:

Traffic lights automation.
Wireless management of LED signs.
Road surveillance, including linking of systems.
Toll station installations where communication devices are installed.

Cable Requirements:

Outdoors must resist UV and have weather resistance.
High EMI resistance → deploy shielded and armored RS485 cables.
High stability and instant responsiveness.

Example:

Along highways and roads, remote toll barriers and clearance units are connected with the central server via RS485 to ensure the toll is remotely controlled, and toll clearance stat is feedback to the server.

IV Security and Surveillance Systems

Applications:

Smart meters (electricity, water, gas).
Central management system for public street lights.
Environment monitoring sensors (air quality, temperature, humidity).

Cable Requirements:

Ranging from simple node network to large large node network.
Routing complexity (under the ground, over the ground).
High stability → recommend armored PE jacket RS485 cables.

Example:

In smart residential areas, RS485 cables direct data flow from electric meters to data concentrators for automatic remote meter reading.

V Smart City & IoT Applications

Applications:

The communication pertaining to the linkage between the UPS and the battery banks.
Observance and control of substation equipment.
Getting required data for the PV inverter communication.
Alarm connection for the electrical devices.

Cable Requirements:

High insulation capable of withstanding strong signal interference.
Corresponds to both indoor and outdoor usage where LSZH jackets or PE jackets are used.
One of the essential elements for stable communication in high-voltage sectors.

Example:

RS485 cables have the same role in a solar power farm as in any other power generation source: They connect PV modules to inverters for real-time monitoring and regulatory purpose.

VI Power & Energy Management

Applications:

The communication pertaining to the linkage between the UPS and the battery banks.
Observance and control of substation equipment.
Getting required data for the PV inverter communication.
Alarm connection for the electrical devices.

Cable Requirements:

High insulation capable of withstanding strong signal interference.
Corresponds to both indoor and outdoor usage where LSZH jackets or PE jackets are used.
One of the essential elements for stable communication in high-voltage sectors.

Example:

RS485 cables have the same role in a solar power farm as in any other power generation source: They connect PV modules to inverters for real-time monitoring and regulatory purpose.

■ RS485 Cable Selection Guide

Reliable RS485 Cables for Every Application

Looking for the right RS485 cable? Whether you're working in clean indoor offices or demanding industrial environments, choosing the correct cable makes all the difference in signal reliability and system safety.

This guide helps you easily understand the key differences and pick the best-fit model.

RS485-RS232 Cable

■ Shielding Type Comparison

Shielding Type	Features	Interference Protection	Recommended Use
Foil Shield	Basic aluminum foil layer	Basic	Indoor use, low EMI areas
Foil + Braid Shield	Foil + tinned copper braid (65–90% coverage)	Moderate to Strong	Industrial control systems
Foil + Braid + Steel Armor	Enhanced braid + steel wire armor	Maximum	High EMI, outdoor or underground

■ Jacket Material

Jacket Type	Features	Ideal Conditions
PVC	Flexible, economical	Indoor, general use
LSZH (Eca Rated)	Flame retardant, low smoke, halogen-free	Data centers, eco-conscious sites
PE	UV-resistant, water-resistant, durable	Outdoor ducting or burial
FEP / CMP	High-temp resistant, fire-rated	Vertical shafts, IT rooms
LSZH-SWB-LSZH	Full protection with armor & fire safety	Extreme environments

■ Insulation Materials

Insulation Type	Key Benefit	Applications
FPE	Low capacitance, long-distance	High-performance signal systems
PE	Durable, cost-effective	Industrial setups
FEP	Heat and chemical resistant	High-temp or harsh environments

■ Conductor & Pair Count

Wire Gauge (AWG)	Usage
28 AWG	Space-saving, short distance
24 AWG	Longer distance, lower attenuation

■ Conductor & Pair Count

Application Area	Suggested Series	Key Features
Indoor RS485/RS232 Communication	730 Series	Foil shield, PVC jacket, budget-friendly
Medium EMI Industrial Environment	731 / 7320 Series	Dual shielding (foil + braid), 24 AWG
EMI-sensitive or Long-Distance Use	7320 Series (90% braid)	Enhanced shielding, superior signal quality
Fire-Resistant or Halogen-Free Demand	732011 / 732021 / 732031	LSZH or FEP jackets, UV-resistant
Outdoor / Duct / Burial Installation	732025 (PE Jacket)	Weatherproof and abrasion-resistant
Harsh Industrial, Underground, High EMI	7320x6 (Armored)	SWB armor + LSZH jacket, triple protection

■ RS485 Cable Selection Guide by Application

Application Area	Recommended Jacket	Shielding Type	Armored	Special Notes
Industrial Automation	PVC / LSZH	Foil + Braid	Optional	Oil & corrosion resistant
Smart Buildings	PVC	Foil / Unshielded	No	Flexible for easy routing
Transportation Systems	PE	Dual Shield	Yes	UV & weather resistant
Surveillance Systems	PVC	Foil	Depends	Color-coded options available
Smart Cities / IoT	PE	Dual Shield	Recommended	Use armored version for direct burial
Power & Energy	LSZH / PE	Foil + Braid	Recommended	Must meet electrical safety standards

Need assistance? If you require our help, then contact our team for technical consultation or custom RS485 cable solutions.

Need Help Choosing?

Let our experts help you select the ideal cable for your environment.
Contact us for a customized solution, datasheet, or bulk OEM support.

Michael

michael@zion-communication.com

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+86 13757188184

■ FOIL

PIC	SKU	Conductor	Insulation	Shield	Jacket	Environmental Suitability
	73004	4 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester	PVC	Indoor use
	73005	5 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester	PVC	Indoor use
	73006	8 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester	PVC	Indoor use
	73012	12 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester	PVC	Indoor use

■ FOIL+BRAIDING

PIC	SKU	Conductor	Insulation	Shield	Jacket	Environmental Suitability
	73102	2 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73103	3 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73104	4 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73105	5 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73106	8 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73112	12.5 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73118	18 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)
	73125	25 pairs 28 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 65%	PVC	Indoor (Not Riser or Plenum)

PIC	SKU	Conductor	Insulation	Shield	Jacket	Environmental Suitability
	73201	1 pair 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PVC	Indoor
	73202	2 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PVC	Indoor
	73203	3 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PVC	Indoor
	73204	4 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PVC	Indoor

PIC	SKU	Conductor	Insulation	Shield	Jacket	Environmental Suitability
	732011	1 pair 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	LSZH Eca	Indoor, LSZH, UV
	732013	1 pair 24 AWG Stranded TC	FEP (Fluorinated Ethylene Propylene)	Aluminum + Polyester +TC Braid 90%	PVC CMP	Indoor
	732014	1 pair 24 AWG Stranded TC	FEP (Fluorinated Ethylene Propylene)	Aluminum + Polyester +TC Braid 90%	FEP CMP	Indoor, Oil Resistant
	732021	2 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	LSZH Eca	Indoor, Sunlight-Resistant, Non-Halogenated, Oil Resistant
	732023	2 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PVC CMP	Indoor
	732024	2 pairs 24 AWG Stranded TC	FEP (Fluorinated Ethylene Propylene)	Aluminum + Polyester +TC Braid 90%	FEP CMP	Indoor, Oil Resistant
	732025	2 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	PE	Water Exposure, Below-Grade Conduit, Indoor & Outdoor Use, Sunlight Resistant
	732031	3 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	LSZH Eca	Indoor, Non-Halogenated, Sunlight & Oil Resistant
	732041	4 pairs 24 AWG Stranded TC	PE (Polyethylene)	Aluminum + Polyester +TC Braid 90%	LSZH Eca	Indoor, Non-Halogenated, Sunlight & Oil Resistant

■ FOIL+BRAIDING+SWB

PIC	SKU	Conductor	Insulation	Shield	Amour	Jacket	Environmental Suitability
	732016	1 pair 24 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 90%	Steel Wire Braiding	LSZH/SWB/LSZH	Indoor, LSZH, UV
	732026	2 pairs 24 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 90%	Steel Wire Braiding	LSZH/SWB/LSZH	Indoor, Sunlight-Resistant, Non-Halogenated, Oil Resistant
	732036	3 pairs 24 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 90%	Steel Wire Braiding	LSZH/SWB/LSZH	Indoor, Sunlight-Resistant, Non-Halogenated, Oil Resistant
	732046	4 pairs 24 AWG Stranded TC	FPE (Foam Polyethylene）	Aluminum + Polyester +TC Braid 90%	Steel Wire Braiding	LSZH/SWB/LSZH	Indoor, Sunlight-Resistant, Non-Halogenated, Oil Resistant

■ Common Applications of RS485 Cable (Detailed Guide)

I Industrial Automation Systems

II Building Automation & Smart Buildings

III Intelligent Transportation Systems (ITS)

IV Security and Surveillance Systems

V Smart City & IoT Applications

VI Power & Energy Management

■ RS485 Cable Selection Guide

■ Shielding Type Comparison

■ RS485 Cable Selection Guide by Application

■ FOIL

■ FOIL+BRAIDING

Product Categories

SERVICE

■ Common Applications of RS485 Cable (Detailed Guide)

I Industrial Automation Systems

II Building Automation & Smart Buildings

III Intelligent Transportation Systems (ITS)

IV Security and Surveillance Systems

V Smart City & IoT Applications

VI Power & Energy Management

■ RS485 Cable Selection Guide

■ Shielding Type Comparison

■ RS485 Cable Selection Guide by Application

■ FOIL

■ FOIL+BRAIDING

Product Categories

SERVICE​​​​​​​

SERVICE