ZR-RS485-22 RS485 ASTP-120 signal line

ZR-RS485-22 RS485 ASTP-120 signal line

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.

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, 100% coverage of aluminum foil/polyester composite tape and 90% coverage of tinned copper wire for dual shielding, equipped with an independent grounding wire, industrial gray PVC outer sheath, in compliance with UL 2919 document,.

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 80% shielding rate and tin plated copper mesh with 90% shielding rate 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 networkZR-RS485-22 RS485 ASTP-120 signal line

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

1) 485 twisted pair communication line conductor: multi stranded tinned copper wire, 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%

After testing, the maximum communication distance of ASTP-120 data cable is about 1219M, and the maximum transmission rate is 10Mb/S. The transmission rate is inversely proportional to the transmission distance. Only at a transmission rate of 100Kb/S can the maximum communication distance be achieved. If longer distances need to be transmitted, STP repeaters need to be added. This cable generally supports up to 32 nodes, but if a specially designed chip is used, it can reach 128 or 256 nodes. The largest cable can support up to 400 nodes.

The wires and cables produced by our company are strictly produced in accordance with the requirements of the quality assurance system. The main raw materials are purchased at designated locations, and the raw material manufacturers are also qualified subcontractors evaluated by our company. 2、 The production process is strictly controlled according to the IS09001 quality certification system to ensure compliance with standard requirements. Strict factory inspections are conducted to ensure the quality of the products leaving the factory. 3、 Kitten Cable adheres to the principle of "customer first, quality *", provides excellent service, recognizes its responsibility, and has established a dedicated technical service team and technical contact information. We can provide free services to customers at any time in terms of technical aspects, product use, and any problems encountered during product use, so that customers can truly experience satisfaction when buying and peace of mind when using. Fourthly, for customers' letters, calls, or inquiries about product quality, we will immediately reply to them and send people to the site within 24 hours to provide various technical services for free, analyze the reasons, and solve problems. Fifthly, if there are any quality problems with the product, our company will guarantee repair, replacement, or return to meet the requirements of customers

Sales: Manager Li