NZM1-XTVDVR-60 EATON

NZM1-XTVDVR-60  EATON Termination Unit

Product  Description：

The EATON Termination Unit is a passive electronic device designed to be installed at the physical ends of a bus communication line in a multi-drop network topology. Its primary function is to match the characteristic impedance of the transmission line with the impedance of the unit itself. This matching prevents signal reflection, which occurs when a data pulse reaches the end of an unterminated cable and bounces back, interfering with the original and subsequent signals. By absorbing the signal energy, the Termination Unit ensures that data packets are transmitted cleanly and reliably along the entire length of the bus, preventing communication errors and ensuring stable network operation. The unit typically contains internal resistors and sometimes capacitors, optimized for the specific bus standard it supports.

Product Parameters

The specific parameters depend on the communication protocol the unit is designed for (e.g., PROFIBUS DP, CANopen, DeviceNet), but generally include:

• Resistance (Impedance): This is the most crucial parameter, typically $100 \text{ to } 150 \text{ ohms}$ for common industrial buses like PROFIBUS and CAN.

• Bus Voltage: The maximum voltage it can handle, generally compatible with standard industrial signals (e.g., $5 \text{ V}$ or $24 \text{ V}$).

• Connector Type: Commonly a DB9 connector, M12 circular connector, or screw terminal block compatible with the bus cable.

• Housing: Often a robust IP-rated enclosure (e.g., IP20) for industrial cabinet mounting or a durable housing for field installation.

• Operating Temperature: Designed for industrial environments, typically $-25^{\circ}\text{C}$ to $+70^{\circ}\text{C}$.

• Integrated Diagnostics: Some advanced units may feature LED indicators to confirm power and termination status.

Product Advantages

Using a genuine EATON Termination Unit offers distinct advantages for industrial networks:

• Enhanced Signal Integrity: It eliminates signal reflections, which is critical for maintaining reliable, high-speed data transmission over long cable runs, thus preventing communication time-outs and errors.

• Network Reliability: By ensuring stable communication, the unit contributes directly to the overall reliability and uptime of the automated system.

• Simplified Troubleshooting: Using proper termination reduces the complexity of network faults, making it easier for maintenance personnel to diagnose and isolate issues.

• Standard Compliance: EATON units are engineered to strictly adhere to the specifications of industrial communication protocols (e.g., IEC 61158), ensuring guaranteed interoperability with other certified devices.

Important Considerations (Precautions)

Proper application of the Termination Unit requires adherence to specific precautions:

• Placement: The unit must be installed only at the two physical ends of the bus segment, and never in the middle. Incorrect placement will disrupt the network.

• Number of Units: Only two termination units are required per bus segment, one at each end, regardless of the number of connected devices between them.

• Power: For active termination units (which may include diagnostic LEDs or signal conditioning), it is essential to ensure they are properly supplied with the required auxiliary power (often $24 \text{ V}_{\text{DC}}$).

• Protocol Match: Ensure the termination unit's impedance matches the specific communication protocol being used. Using an incorrect unit will not solve reflection issues and can introduce new problems.

• Removal: All other devices connected to the bus must have their internal termination switch disabled if they are not the end device.

Product Applications

EATON Termination Units are necessary in virtually all industrial applications that utilize a bus-based field network:

• Factory Automation: Used extensively on PROFIBUS and CANopen networks that link PLCs, remote I/O blocks, sensors, and actuators across long production lines.

• Machine Control: Applied in complex machinery where high-speed communication between controllers and motor drives (often via CAN or EtherCAT derivatives) is essential for synchronized motion.

• Building and Process Control: Necessary in large facilities for reliable communication on bus systems controlling HVAC, security, and energy management devices.

• Automated Guided Vehicles (AGVs) and Robotics: Used to ensure stable wireless or wired communication links that rely on deterministic industrial networks.

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

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