Overview

The ABB TB850 3BSC950193R1 CEX-Bus Terminator is a critical component specifically designed for the AC 800M high-performance control system. This essential module maintains signal integrity across the controller extension bus, ensuring reliable communication between the central processing unit and various I/O modules. Its primary function is to provide proper bus termination at the end of a daisy-chain configuration, which prevents signal reflections that could lead to data corruption in the automation network.

Functional Highlights

The TB850 features a termination resistance of 120 Ω, precisely matched to the impedance requirements of the CEX-Bus architecture. Operating with a bus voltage of 5 V DC, this module conforms to the digital communication standards of the AC 800M system.

In addition, the TB850 offers flexible connectivity through either a 9-pin D-sub connector or a terminal block interface, accommodating different installation preferences while ensuring secure electrical connections. The module is built with a 25-pin DB25P male connector and includes a screw fixing mechanism for secure mounting within the controller rack.

Compact and lightweight, the TB850 weighs 1.08 kg and has dimensions of 18.5 x 8.5 x 30.5 cm, making it suitable for space-efficient installations in control cabinets. Its reliable construction includes components rated for pollution degree 2 environments, typical in industrial settings.

Technical Data

• Model Number: TB850 3BSC950193R1
• Module Type: CEX-Bus Terminator
• Manufacturer: ABB
• Condition: Brand New
• Weight: 1.08 kg
• Dimensions: 18.5 x 8.5 x 30.5 cm
• HS CODE: 8537101190
• Product Origin: Sweden
• Lead Time: In Stock
• Minimum Order Quantity (MOQ): 1
• Operating Temperature Range: -25°C to +70°C
• Humidity Resistance: 95% non-condensing
• Termination Resistance: 120 Ω
• Bus Voltage: 5 V DC

Typical Applications

The ABB TB850 CEX-Bus Terminator is ideal for:

• Ensuring reliable signal integrity in AC 800M control systems.
• Supporting complex control configurations in process automation industries.
• Providing communication stability in power generation facilities.

FAQ

1. What is the weight of the TB850 CEX-Bus Terminator?
   The TB850 weighs 1.08 kg.

2. What are the dimensions of the TB850?
   Its dimensions are 18.5 x 8.5 x 30.5 cm.

3. What is the operating temperature range for the TB850?
   It operates effectively between -25°C and +70°C.

4. What is the termination resistance of the TB850?
   The module features a termination resistance of 120 Ω.

5. How does the TB850 ensure reliable communication?
   It provides proper bus termination to prevent signal reflections that cause data corruption.