ABB TB850 3BSC950193R1 CEX-Bus Terminator

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TB850 3BSC950193R1 Product datasheet

Model number:	TB850 3BSC950193R1	Module Type：	CEX-Bus Terminator
Manufacture:	ABB	Condition：	Brand New
Range of Product:	Advant-800xA	Lead time：	In Stock
Weight:	1.08 kg	HS CODE：	8537101190
Dimension:	18.5x8.5x30.5cm	MOQ:	1
Product Origin:	SWEDEN	System：	DCS
Discontinued on:	Active	Communication Service:	Ethernet router

TB850 3BSC950193R1 Functional Description

The 3BSC950193R1 CEX bus ABB is a critical CEX-Bus terminator module specifically engineered for the AC 800M high-performance control system. This compact component plays an essential role in maintaining signal integrity across the controller extension bus, ensuring reliable communication between the central processing unit and various I/O modules. The primary function of the ABB CEX-Bus Terminator TB850 3BSC950193R1 is to provide proper bus termination at the final unit in the daisy-chain configuration, preventing signal reflections that could cause data corruption in the automation network.

Designed with robust electrical characteristics, the TB850 3BSC950193R1 Terminator ABB features a termination resistance of 120 Ω, precisely matched to the impedance requirements of the CEX-Bus architecture. The module operates with a bus voltage of 5 V DC, consistent with the digital communication standards of the AC 800M system. The ABB TB850 3BSC950193R1 offers flexible connectivity options through either a 9-pin D-sub connector or terminal block interface, accommodating different installation preferences while ensuring secure electrical connections.

The physical construction of the TB850 3BSC950193R1 ABB CEX-Bus Terminator includes a 25-pin DB25P male connector and screw fixing mechanism for secure mounting within the controller rack. Weighing only 0.1 kg with compact dimensions of approximately 5.1x2.5x7.6cm, it is optimized for space-efficient installations in control cabinets. Its design reflects ABB's commitment to reliability, featuring components rated for pollution degree 2 environments typically found in industrial settings.

Manufactured in Sweden with global availability through distributors, the ABB TB850 3BSC950193R1 meets stringent quality standards for industrial automation components. The module operates effectively across a temperature range of -25°C to +70°C and withstands humidity levels up to 95% non-condensing. The proven performance of the ABB TB850 3BSC950193R1 makes it an indispensable component for ensuring the stability and reliability of complex control systems in various industrial applications, from process automation to power generation facilities.

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One Year Warranty

We offer a one-year warranty for any quality issues with our products. If you encounter any defects or malfunctions during this period, please contact us for prompt resolution. Our warranty covers repairs or replacements, ensuring your satisfaction and peace of mind.
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ABB	3N2632	ABB	3HAC17484-8	ABB	3EHL409319R0001 URB512 D15
ABB	3HNP04014-1	ABB	3HAC17282-1	ABB	3EHL409300R0001 PPB626 B01
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ABB	3HNM03189-1	ABB	3HAC063061-001	ABB	3EHE300692R0001 LAA424 C01
ABB	3HNM00148-01	ABB	3HAC039728-001	ABB	3BSE050201R1 PM866-2
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ABB	3HEA800906-001	ABB	3HAC024322-001	ABB	3AXD50000032633 E152A03EIOA
ABB	3HNA007719-001 3HNA006145-001	ABB	3HAC044168-001 RMU102	ABB	1SBP260102R1001 XC08L1

CEX-Bus Terminator

A CEX-Bus Terminator is a critical component in ABB's AC 800M controller system, specifically designed to terminate the Controller Extension (CEX) bus. This passive device provides proper impedance matching at the end of the bus line to prevent signal reflections that cause data corruption and communication errors. Typically featuring a 120-ohm termination resistance, it ensures signal integrity across the entire daisy-chained network of I/O modules. The terminator must be installed on the last unit in the CEX bus chain to maintain proper bus topology. Its compact design allows direct mounting on the rail, while robust construction ensures reliable operation in industrial environments with wide temperature ranges and electrical noise. Without proper termination, the CEX bus would experience signal degradation leading to system instability, making this component essential for maintaining communication reliability between the controller and its expansion modules in process automation applications

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