DS3800NIDC - Signal Isolator Board

DS3800NIDC - Signal Isolator Board DS3800NIDC - Signal Isolator Board

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Part Number: DS3800NIDC
Manufacturer: General Electric
Series: Mark IV
Product Type: Signal Isolator Board
Operating temperature: -35 to 65 degrees Celsius
Power Supply Voltage: 125 V dc
Technology: Surface Mount
Board Size: 33.0 cm high x 17.8 cm
Size: 8.25 cm high x 4.27 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States


DS3800NIDC is a Signal Isolator Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. A signal isolator board is a device used in control systems to electrically isolate signals between different components or subsystems. It helps prevent undesirable interactions, such as electrical noise, voltage spikes, ground loops, and interference, from affecting the accuracy and reliability of signals in the control system.


Isolation: Signal isolator boards provide electrical isolation between input and output channels. This means that the input signal is completely separated from the output signal electrically, preventing any direct electrical connection between the two.

Noise reduction: One of the primary purposes of signal isolators is to minimize noise and interference. By isolating the signals, they prevent noise generated in one part of the system from propagating to other parts, ensuring cleaner and more accurate signals.

Ground loop prevention: Ground loops can occur when there are multiple ground connections in a system, leading to unwanted currents and voltage differentials. Signal isolators can help break ground loops by providing isolated signal paths, eliminating the need for a direct ground connection between the input and output sides.

Voltage and current compatibility: Signal isolator boards typically provide voltage and current level conversion capabilities. They can accept signals from different ranges, such as millivolts or milliamperes, and convert them to standard levels suitable for the receiving components or subsystems.

Protection: Signal isolator boards often include protective features to safeguard the components in the system. These can include surge protection, overvoltage protection, and reverse polarity protection, among others.

Analog and digital signals: Signal isolators can handle both analog and digital signals. Analog isolators maintain the integrity of continuous voltage or current signals, while digital isolators provide isolation for discrete logic-level signals.

Communication protocols: Signal isolator boards may support various communication protocols, such as Modbus, Profibus, Foundation Fieldbus, or Ethernet. This allows them to interface with different devices and systems within the control system.

WOC maintains the largest inventory of replacement parts for GE Speedtronic control systems. Additionally, we offer warranty-backed unused and rebuilt boards as well as board repairs for your damaged ones. For your OEM needs, our team of professionals is available around the clock. We at WOC are happy to help you with any needs you may have in terms of automation. Please contact our team by phone or email for pricing and availability on any components and repairs.


What is the purpose of a signal isolator board?

A signal isolator board is used to electrically isolate signals between different components or subsystems in a control system. It helps prevent electrical noise, voltage spikes, ground loops, and interference from affecting the accuracy and reliability of signals.

How does a signal isolator board provide electrical isolation?

Signal isolator boards typically use techniques such as transformer coupling, opto-isolation, or digital isolation to achieve electrical isolation. These methods create a barrier between the input and output channels, preventing direct electrical connection while allowing the signal to pass through.

What types of signals can be isolated with a signal isolator board?

Signal isolator boards can handle both analog and digital signals. They can isolate continuous voltage or current signals in analog form or isolate discrete logic-level signals in digital form.