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RS-485 Cable

  • RS-485

  • hellosignal

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■ RS485 Cable

RS485 cable refers to a type of cable that is used specifically to carry out the RS485 communication standard. It is usually a twisted pair cable consisting of two or three wires, two of which transmit the data, and the other one, which is optional, is for grounding. RS485 is the cable standard enforcing reliable data transmission even over long distances or in environment fluctuating electric fields. RS485 cables have the following attributes: 

Twisted Pair: This reduces the electromagnetic interference (EMI) because the wires are twisted together. 

Differential Signaling: RS485 employs a differential signaling technique, contributing to the reduction of noise by sending one wire the signal while the other wire sends a negative copy. 

Long Distance: RS485 can send out data over longer distances (up to 1200 meters), maybe even double the distance encoded in some other serial communication standards. 

Multi-drop Capability: The system cases are allowed for many devices to connect to the same bus (cable). 

Industrial Applications: RS485 is frequently adopted in industrial automation processes, such as controlling robots and devices that are required to cross long distances while having noise immunity levels.


 

■ Common Types of RS485 Cables

Twisted Pair Cables: These are the most popular types, often with a shield guaranteeing additional EMP (Electromagnetic Interference) reduction. 

Shielded Cables: Shielding protects noise interference via a shield as an additional protective element. 

Unshielded Cables: These are applicable for the circumstances where the background noise is not so high. 

Cat5/Cat6 Ethernet Cables: It is noticed that these wire connections are not purpose-built for RS485 communications; still, they could be used, providing they are within the range where the wires performance will not be degraded.

 What is an RS485 Cable



■ When to use RS485 cables

Long distances: When data is transported over wiring length higher than 100 meters. 

Noisy environments: When the signals are exposed to interference from other electrical equipment radiation. 

Multi-drop networks: It is the situation when one bus serves several devices. 

Industrial applications: Commonly used in critical industries, where reliability and long-distance communication are considered to be vital.



■ 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

 


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 is a Product manager and Chief Executive Officer at Zion Communication. 

Specializes in copper communications, security systems, and network cabling.

michael@zion-communication.com

+86 13757188184




■ FOIL

PIC

SKU

Conductor

Insulation

Shield

Jacket

Environmental Suitability
73004-RS485-232 Cable, 28AWG 4PR, Foil, PVC,120Ω

73004

4 pairs
28 AWG  Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester

PVC

Indoor use
73005-RS485232 Cable, 28AWG 5PR, Foil, PVC,120Ω

73005

5 pairs
28 AWG  Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester

PVC

Indoor use
73006-RS485-RS232 Cable, 28AWG 8PR, Foil, PVC, 120Ω

73006

8 pairs
28 AWG  Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester

PVC

Indoor use
73012-RS485-RS232 Cable, 28AWG 12.5PR, Foil, PVC, 120Ω

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 RS485-RS232 Cable, 28AWG 2PR, Foil+Braid, PVC, 120Ω

73102

2 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73103 RS485-RS232 Cable, 28AWG 3PR, Foil+Braid, PVC, 120Ω

73103

3 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73104 RS485-RS232 Cable, 28AWG 4PR, Foil+Braid, PVC, 120Ω

73104

4 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73105 RS485-RS232 Cable, 28AWG 5PR, Foil+Braid, PVC, 120Ω

73105

5 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73106 RS485-RS232 Cable, 28AWG 8PR, Foil+Braid, PVC, 120Ω

73106

8 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73112 RS485-RS232 Cable, 28AWG 12.5PR, Foil+Braid, PVC, 120Ω

73112

12.5 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73118 RS485-RS232 Cable, 28AWG 18PR, Foil+Braid, PVC, 120Ω

73118

18 pairs
28 AWG Stranded TC

FPE
(Foam Polyethylene）

Aluminum + Polyester
+TC Braid 65%

PVC

Indoor (Not Riser or Plenum)
73125 RS485-RS232 Cable, 28AWG 25PR, Foil+Braid, PVC, 120Ω

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 RS485 Cable, 24AWG 1P, Foil+Braid, PVC, 120Ω

73201

1 pair
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

PVC

Indoor
73202 RS485 Cable, 24AWG 2P, Foil+Braid, PVC, 120Ω

73202

2 pairs
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

PVC

Indoor
73203 RS485 Cable, 24AWG 3P, Foil+Braid, PVC, 120Ω

73203

3 pairs
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

PVC

Indoor
73204 RS485 Cable, 24AWG 4P, Foil+Braid, PVC, 120Ω

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 RS485 Cable, 24AWG 1P, Foil+Braid, LSZH Eca, 120Ω

732011

1 pair
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

LSZH Eca

Indoor, LSZH, UV
732013 RS485 Cable, 24AWG 1P, Foil+Braid, PVC CMP, 120Ω

732013

1 pair
24 AWG  Stranded TC

FEP (Fluorinated Ethylene Propylene)

Aluminum + Polyester
+TC Braid 90%

PVC CMP

Indoor
732013 RS485 Cable, 24AWG 1P, Foil+Braid, PVC CMP, 120Ω

732014

1 pair
24 AWG  Stranded TC

FEP (Fluorinated Ethylene Propylene)

Aluminum + Polyester
+TC Braid 90%

FEP CMP

Indoor, Oil Resistant
732021 RS485 Cable, 24AWG 2P, Foil+Braid, LSZH Eca, 120Ω

732021

2 pairs
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

LSZH Eca

Indoor, Sunlight-Resistant,
Non-Halogenated, Oil Resistant
732023 RS485 Cable, 24AWG 2P, Foil+Braid, PVC CMP, 120Ω

732023

2 pairs
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

PVC CMP

Indoor
732024 RS485 Cable, 24AWG 2P, Foil+Braid, FEP CMP, 120Ω

732024

2 pairs
24 AWG  Stranded TC

FEP (Fluorinated Ethylene Propylene)

Aluminum + Polyester
+TC Braid 90%

FEP CMP

Indoor, Oil Resistant
732025 RS485 Cable, 24AWG 2P, Foil+Braid, PE, 120Ω

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 RS485 Cable, 24AWG 3P, Foil+Braid, LSZH Eca, 120Ω

732031

3 pairs
24 AWG  Stranded TC

PE
(Polyethylene)

Aluminum + Polyester
+TC Braid 90%

LSZH Eca

Indoor, Non-Halogenated,
Sunlight & Oil Resistant
732041 RS485 Cable, 24AWG 4P, Foil+Braid, LSZH Eca, 120Ω

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 RS485 Amour Cable, 24AWG 1P, Foil+Braid, LSZH-SWB-LSZH, 120Ω

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 RS485 Amour Cable, 24AWG 2P, Foil+Braid, LSZH-SWB-LSZH, 120Ω

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 RS485 Amour Cable, 24AWG 3P, Foil+Braid, LSZH-SWB-LSZH, 120Ω

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 RS485 Amour Cable, 24AWG 4P, Foil+Braid, LSZH-SWB-LSZH, 120Ω

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

 



# 1  Insulation Line
1

# 2 Twisting Line
2

# 3 Braiding Line
IMG_0683

# 4 Jacket Line
100_7876

# 5 Testing
CTS650对称数字通信电缆测试系统-3副本

# 6 Testing
635585795134459266623

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