General
Manufacturer	Lapp
Cable type	Bus wiring
Communication standard	PROFIBUS DP
Installation method	Fixed installation
Rated shaft resistance	150 Ohm
Conductor cross section	1x2x0,64 mm²
Insulating material	PVC
Colour	Violet
Outer diameter	8 mm
Flame retardancy	IEC 60332-1-2
Application environment	dry and damp rooms

The UNITRONIC® BUS PB 1X2X0,64 cable from Lapp is a data cable designed for use in industrial automation systems, particularly for PROFIBUS DP applications. It is designed for fixed installation and is suitable for use in dry and damp rooms. The cable features a nominal characteristic impedance of 150 Ohm, which is required for stable and interference-free data transmission in bus systems. The construction with a cross-section of 1x2x0.64 mm² ensures sufficient electrical conductivity and mechanical robustness for industrial use. The cable is equipped with PVC insulation material, offering high mechanical strength and chemical resistance. The violet color serves as visual identification and facilitates easy recognition in cable management. The outer diameter is 8 mm, enabling compact installation without compromising mechanical stability.

Applications

The cable is specifically designed for fixed installation in industrial environments, particularly in systems using PROFIBUS DP as the communication standard. It is suitable for use in dry and damp rooms, although the UV resistance specifications apply only to other article numbers (e.g. 2170233, 2170333, 2170820, 2170824, 2170826) and are not confirmed for the current article number 2170220/100. The maximum EMC shielding effectiveness ensures high immunity to interference and minimizes influence from electromagnetic fields, which is crucial for reliability in industrial environments.

Functions and Equipment in Detail

The cable features double shielding, providing high shielding effectiveness against electromagnetic interference. The shielding is designed to maintain signal integrity in the bus system and prevent data loss or distortion. The PVC insulation offers good mechanical stability and is resistant to common industrial chemicals. The violet color is standard for PROFIBUS cables and supports quick identification in the cabling network. The cable is available in a length of 100 meters, which is sufficient for many industrial installations.

Technology Explained Simply

The nominal characteristic impedance of 150 Ohm is a critical parameter for impedance matching in the bus system. It ensures signals are transmitted without reflections, which is necessary for error-free communication between devices. The double shielding reduces the impact of external electromagnetic interference sources, such as motors, transformers, or other electrical equipment. The PVC insulation protects the conductors from mechanical damage and offers high thermal resistance. The cable is flame retardant according to IEC 60332-1-2, meaning it does not easily ignite and limits flame spread in case of fire.

Compatibility and Accessories

The cable is specifically developed for PROFIBUS DP systems and is compatible with corresponding connectors and termination resistors. It can be used in existing PROFIBUS infrastructures without requiring additional modifications. The use of suitable connectors and cable glands is recommended to ensure a secure and durable connection. The UV resistance specifications refer to other article numbers and are not confirmed for the current cable.

Installation and Mounting

The cable is designed for fixed installation and can be routed in cable ducts, on trays, or in conduits. Installation does not require special tools, although careful securing is recommended to avoid mechanical stress. The cable should not be excessively bent or compressed to maintain the integrity of the shielding and conductors.

Operational Advantages

The high EMC shielding effectiveness and stable nominal characteristic impedance ensure reliable data transmission, even in environments prone to interference. The PVC insulation provides long service life and high resistance to mechanical and chemical influences. The violet color facilitates identification and maintenance in the cabling network. The flame-retardant design according to IEC 60332-1-2 increases safety during operation.