RS485 signal cable armored communication cable

RS485 signal cable armored communication cable

RS485 communication cables generally use twisted pair cables, but in environments with higher requirements, shielded twisted pair cables should be used. When using RS485 communication lines, the cable length between the host (calling device) and the 485 port of the instrument is inversely proportional to the baud rate of data signal transmission for a specific transmission line; This length is mainly affected by signal distortion and noise. In theory, the transmission distance of RS485 communication cable can reach 1200 meters, but in practical applications, the transmission distance should be less than 1200 meters, and the specific length is affected by the surrounding environment.

Characteristics of RS485 communication cable: The characteristic impedance of RS-485 communication cable is 120 ohms, the conductor is 2 * 24AWG multi stranded tinned copper wire, PE insulation medium, covered by aluminum foil/polyester composite tape and 90% tinned copper wire, with a total of 2 layers of shielding. It is equipped with an independent grounding wire and an industrial gray PVC outer sheath.

RS485 communication line structure:

1) Conductor: Stranded tinned copper wire with multiple strands, 7 per strand, each conductor wire diameter of 0.30mm, a total of four conductors, outer diameter: 0.91+/-0.03mm

2) Insulation: Solid core PE insulation, outer diameter: 1.90+/-0.03mm

3) Shielding: Aluminum foil shielding

4) Drainage wire: multi stranded tinned copper wire, 7 per strand, each conductor wire diameter of 0.30mm, a total of one strand, outer diameter: 0.91+/-0.03mm

5) Second shielding: Aluminum magnesium braided mesh shielding, with a coverage rate of 55%

6) Inner sheath: black PVC, OD: 8.0mm+/-10%

RS485 signal cable armored communication cable

A standard 1-wire RS-485 communication cable with a characteristic impedance of 120 ohms, a conductor of 2 * 24AWG multi stranded tinned copper wire, PE insulation medium, covered with aluminum foil/polyester composite tape and 90% tinned copper wire for double shielding, equipped with an independent grounding wire, industrial gray PVC outer sheath, and complying with UL 2919 documents.

Outstanding performance, suitable for complex industrial automation control network communication and building automation network communication.

Standard 2-wire RS-485 communication cable.

Characteristic impedance of 120 ohms, conductor of 2-wire to 4-core (2x2x24AWG) multi stranded tinned copper wire, PE insulated sheath; To be suitable for complex industrial noise environments, aluminum foil/polyester composite tape with a shielding rate of 90% and tin plated copper mesh with a shielding rate of 90% are specially used for dual shielding, and an independent TC grounding conductor and industrial gray PVC outer sheath are attached, in compliance with UL AWM 2919 document specifications.

The 9842 communication cable is a standard product designed and produced strictly in accordance with the RS-485 communication protocol specifications, and is not only a Rockwell (AB) automation DH-485 control networkThe model is also a standard 2-wire CAN bus cable.

RS-485 communication cable is suitable for communication lines in famous building control systems such as Johnson Controls, Siemens Building, Honeywell, TAC, etc.