General
Degree of protection	Fixed installation
Insulating material	PVC
Colour	Violet
Construction	2x2x0,22
Application	bus systems based on RS 485/RS 422
EMC shielding effectiveness	maximum
Operating environment	dry and damp rooms

The UNITRONIC® BUS LD 2x2x0.22 cable from Lapp is a fixed installation cable for industrial bus systems based on RS 485 and RS 422 standards. It is specifically designed for use in dry and damp rooms and is suitable for applications in automation technology, such as Modbus, SUCOnet P, Modulink P, or VariNet-P. The cable features maximum EMC shielding effectiveness, making it suitable for environments with electromagnetic interference. The violet colour serves as visual identification and facilitates recognition during cabling operations.

Applications

The cable is intended for fixed installation and is used in industrial facilities such as machine building, manufacturing technology, or building automation. The application is in bus systems based on RS 485/RS 422, enabling bidirectional data transmission with high resistance to interference.

Functions and Equipment in Detail

The designation 2x2x0.22 describes the construction: it consists of two pairs of conductors, each with a cross-section of 0.22 mm². The cable is insulated with PVC material, providing high mechanical and thermal resistance. The violet colour of the outer sheath serves as clear identification and simplifies cabling planning. The maximum EMC shielding effectiveness ensures low interference influence and reliable data transmission, especially in environments with high electromagnetic noise.

Technology Explained Simply

The cable is designed for operation in bus systems based on serial interfaces RS 485 and RS 422. These standards enable serial data transmission over long distances with high resistance to interference. The construction with two conductors per pair allows use as a twisted-pair cable, reducing interference from electromagnetic fields.

Compatibility and Accessories

The cable is suitable for bus systems such as Modbus, SUCOnet P, Modulink P, and VariNet-P, which are based on RS 485/RS 422. Compatibility is limited to the mentioned bus systems, without referencing any additional applications or protocols.

Installation and Mounting

The cable is intended for fixed installation, meaning it is not suitable for movable applications or frequent bending. Installation takes place indoors, with no specific mounting instructions or tools mentioned. The violet colour supports identification during installation, especially in complex cabling systems.

Operational Advantages

The maximum EMC shielding effectiveness ensures reliable data transmission, even in environments with high electromagnetic noise. The use of PVC as insulating material guarantees high mechanical strength and good resistance to moisture. The cable is suitable for use in dry and damp rooms, making it applicable to a wide range of industrial applications. The distinct colour coding facilitates identification and maintenance during operation.