Belden 2 Pair Screened Twisted Pair RS-485 Data Cable, 0.2 mm², 24 AWG, 304m, Chrome Sheath

Belden Control Area Network (CAN) RS-485 cable

For highly dependable and efficient signalling these CAN cables by Belden are an excellent choice for your network control application.

The 24AWG/0.20 CSA low capacitance computer cables are ideal for RS-485 standard installations and DMX-512. These cables feature Belden’s patented Beldfoil® Z-fold shield, with tinned copper braid shielding, providing extra insulation and coverage to give you a high-performance solution. They are non-plenum and use a chrome-coloured outer sheath.

They are used by the CAN based Fieldbus systems, other open Fieldbus systems, PLC and DCS systems.

Standards: NEC CM, UL2919 (9841, 9842, 9843, IEC 332-3C (9841NH, 9842NH), RS-485

Belden 9842NH Cable, 305m Reel, 9842NH.00305

The 9842NH.00305 2-pair stranded (7x32) cable has a voltage of 300V and a nominal characteristic impedance of 120 Ohm. The maximum recommended current is 2.1Amps per conductor. This cable uses the signature Beldfoil® shield which offers lightweight, flexible, and strong shielding to ensure excellent signal transmission.

This Belden 9842 model also features an outer jacket made of LSZH (Low Smoke Zero Halogen), making it a great option for enclosed or populated areas. The twisted pair construction helps minimise external interference with data transmission, as the conductors carry signals in opposite directions to negate crosstalk.
It has a wide operating temperature range of -45°C to +80°C and is suitable for indoor use.

Features and Benefits:

• Polyethylene insulation (PE) contributes low dielectric loss and high dielectric strength
• Flame retardant due to LSZH outer jacket, offering greater safety than PVC
• Low capacitance provides reliable long-distance transmission
• Tinned copper conductors provide high conductivity and resistance to corrosion
• Overall Beldfoil® (100% coverage) + tinned copper braid shield (90% coverage)

Applications:

RS-485
DMX512
Computer communications
Low voltage Analog Signals
Low voltage Digital control
Line level audio
Panel wiring
Serial communication

What is RS-485?

This term refers to an industry standard for defining the electrical characteristics of serial lines in serial communication systems (methods of sending data). This standard is useful for industrial control systems as it ensures signal transmission over long distances and electrically noisy environments, in installations where many devices may need to be interconnected.

What are the benefits of shielded cabling?

Cables which are screened, or shielded, are better protected again electromagnetic interference (EMI) than unshielded versions. EMI refers to electrical noise which is conducted or radiated, and it can negatively affect the functioning of devices and equipment. Screening reduces crosstalk between cables (signal leakage), ensuring higher signal integrity.