RS485 Cable, Flame Retardant Communication Twisted Pair

The RS-485 data cable is used for communication between multiple points. Many devices can be connected via a single signal cable, similar to how early Ethernet was connected using a coaxial cable. The RS-485 data cable is suitable for complex building automation, industrial control networks, power automation, and other communication networks.

Section II: RS485 Cable Product Specifications:

Standard 1st-line RS-485 communication cable, characteristic impedance of 120 ohms, conductor of 2*24AWG multi-strand tinned copper wire, PE insulated medium, with 100% aluminum foil/polyester composite tape and 90% tinned copper wire coverage for double shielding, equipped with an independent grounding wire, industrial gray PVC jacket, compliant with UL 2919 specification. The product boasts exceptional performance and can be used in complex industrial automation control network communications and building automation network communications.

Standard 2-pair RS-485 communication cable with characteristic impedance of 120 ohms, conductor of 2-pair 4-core (2x2x24AWG) multi-stranded tin-plated copper wire, PE insulated sheath; designed for complex industrial noise environments, features 100% shielding with aluminum foil/polyester composite tape and 90% shielding with tin-plated copper braid, plus an independent TC grounding conductor. The industrial gray PVC outer sheath complies with UL AWM 2919 specification.

The 9842 communication cable is a standard product designed and manufactured strictly according to the RS-485 communication protocol specifications. It is not only the designated model for Rockwell (AB) automation DH-485 control network, but also a standard 2-pair CAN bus cable.

Three, Application Range of RS485 Cable: For general conditions, a twisted pair cable is sufficient for RS-485 communication cables. However, in environments with higher requirements, shielded twisted pair cables can be used. When using RS485 communication, the cable length between the host (sensing equipment) and the instrument's 485 port is inversely proportional to the data signal transmission baud rate; this length is mainly affected by signal distortion and noise. Theoretically, at communication rates of 100Kbps and below, the maximum transmission distance for RS485 can reach 1200 meters. In actual applications, the transmission distance can vary due to the transmission characteristics of the chip and cable. During transmission, signal amplification can be achieved by adding repeaters, with a maximum of eight. This means that theoretically, the maximum transmission distance for RS485 can reach 9.6 kilometers.

Four, Usage Conditions: 1) No mechanical damage, laying temperature: 0~50℃. 2) Operating temperature: -20~60℃. 3) Minimum bending radius during laying: 8 times the cable diameter. 4) Minimum bending radius during laying: Main cable is 6 times the cable outer diameter; horizontal cable is 4 times the cable outer diameter.