107926EASY-USB-CAB EATON

107926EASY-USB-CAB EATON Termination Unit

Product  Description：

The EATON Termination Unit (often a resistor pack or active termination module) is an essential passive or active component installed at the physical ends of a communication bus line, typically using a two-wire twisted pair cable. Its primary function is to match the impedance of the transmission line, which prevents electrical signals from reflecting back along the cable when they reach the end. Without proper termination, these reflections can interfere with subsequent signals, leading to data corruption, communication errors, and system faults. The unit ensures signal integrity by absorbing the signal at the end of the line. Depending on the technology, it may be a simple, fixed resistor value built into a connector or a switchable module that integrates diagnostics and power isolation.

Product Parameters

The parameters of a Termination Unit are highly dependent on the communication protocol it supports:

• Impedance Match: Typically a fixed resistance value (e.g., $120 \text{ Ohms}$ for PROFIBUS-DP and CANopen).

• Communication Protocol Support: Specified for technologies like RS-485, CAN, or specific proprietary fieldbuses.

• Connection Type: Often features screw terminals, plug-in connectors (e.g., D-sub connectors), or DIN rail mounting for secure physical connection to the bus cable.

• Operating Voltage: Passive units may not require external power; active units may require $24 \text{ V}_{\text{DC}}$ power for diagnostics or isolation features.

• Data Rate Support: Rated to handle the maximum specified baud rate of the communication bus (e.g., up to $12 \text{ Mbps}$ for high-speed buses).

• Housing: Robust, often IP20-rated plastic housing suitable for control cabinet installation.

Product Advantages

EATON Termination Units provide significant advantages in industrial networking. Their use ensures high communication reliability by effectively eliminating signal reflections and reducing network errors, which is critical for machine uptime. They offer simple, standardized installation, often featuring clearly marked terminals or integrated switches, making field wiring and maintenance straightforward. These units are protocol-compliant, designed to meet the electrical specifications of industry-standard fieldbuses, guaranteeing network interoperability. In some advanced versions, the units can provide bus diagnostic capabilities or power monitoring, aiding in rapid troubleshooting and system maintenance. They are a cost-effective solution to prevent complex and intermittent communication faults in distributed control systems.

Important Considerations (Precautions)

Proper application of the Termination Unit requires careful attention to several precautions. Termination must only be applied at the two absolute physical ends of the bus line—one unit at the first device and one unit at the last device—regardless of the physical location of the central controller. Applying termination in the middle of the bus or on too many devices will overload the signal and prevent communication. The unit's impedance value must precisely match the characteristic impedance of the bus cable being used. Installation must be done according to the manufacturer's specified wiring diagram to ensure correct polarity on the data lines (A and B). For switchable units, always verify the switch position is set to "ON" (terminated) at the bus ends and "OFF" (unterminated) for all intermediate devices.

Product Applications

EATON Termination Units are essential in various applications where industrial fieldbus networks are utilized:

• Distributed I/O Systems: Used at the ends of the bus segment connecting remote I/O blocks (e.g., PROFIBUS or CANopen networks) to the central PLC.

• Motion Control: Applied in multi-axis motion control networks to ensure reliable, high-speed synchronization between the master controller and multiple servo drives or motor controllers.

• Machine-to-Machine (M2M) Communication: Implemented in complex manufacturing cells where multiple machines or controllers communicate over a shared serial bus.

• Building Automation: Employed in large building management systems utilizing fieldbus technology to reliably link many distributed sensors and actuators over long distances.

• Process Instrumentation: Critical for stable data transmission from a linear string of smart field instruments (e.g., pressure, temperature transmitters) back to the control system.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

Please make an inquiry for more models：

EATON MTL5053

EATON T0-4-8441

EATON NZMN1-4-A100

EATON NZMN1-4-A125

EATON DH361FDK2WR

EATON CE15ANS3AB

EATON MTL5531

EATON MTL5082

EATON MTL7787

EATON MTL5541

EATON S801T24N3B

EATON DIL M25-10

EATON DIL M17-10

EATON XTCEXFAC11

EATON XTCEXFCC22

EATON C320KGS3

EATON C316FNA3

EATON PXM1000

EATON Diris A-20

EATON Diris A-30

EATON AN16SN0

EATON XV-440-10TVB-1-10

EATON GHC2030

EATON FD3100L

EATON XTCE009B10T

EATON XTCE015B10T

EATON 35V35A-1A22R

EATON HFD3100L

EATON XTCE065D

EATON PSG480E24RM

EATON DILM65 XTCE065D

EATON HLD3600F

EATON A1L4RPK

EATON E22B1

EATON FD3125L

EATON FD2020L

EATON CE15CNC3C

EATON AN16SN0AB

EATON E22B2

EATON E22TL1

EATON HFD3150L

EATON W201K5CN

EATON 9373-FB2-PS-SS

EATON XTCE009B10A

EATON XTCE065DS1A

EATON XTPR063DC1

EATON 8101-HI-TX

EATON KTK-R-5

EATON KTK-R-1/2

EATON 8937-HN

EATON MTL4549Y

EATON XVS-440-10MPI-1-10

EATON XV-102-B2-35TQR-10

EATON E51SPL

EATON C440A1A045SDD

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.

This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link: https://justwellltd.com .com

JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.