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SPECIFICATIONS:
Part Number: DS3800NBIE
Manufacturer: General Electric
Series: Mark IV
Input Signal Range: 0-30 V RMS
Input Signal Types: Analog (±10 VDC), Digital Inputs
Output Signal Types: Analog (±10 VDC), Digital Outputs
Input Voltage Range: ±15 V max
Output Voltage Range: ±10 V DC
Function: Bridge Interface Board
Signal Bandwidth: DC to 10 kHz
Power Supply Voltage: +5 V DC
Mounting: Rack-mounted
Operating Temperature Range: 0°C to 70°C
Power Supply Requirements: +5 VDC
Galvanic Isolation Voltage: 1500 V RMS
Size: 8.24 cm high x 4.16 cm
Repair: 3-7 days
Availability: In Stock
Weight: 0.5 kg
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
DS3800NBIE is a Bridge Interface Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. It bridges discrete and analog I/O modules with the central control processor by translating signal voltage levels and communication protocols, ensuring electrical compatibility and data integrity across the control network. The board’s input/output stages include precision isolation amplifiers and resistor divider networks designed to condition and scale signals from high-level sensors and field devices into the ±10 VDC standard logic used by the Mark IV controller. It provides isolation barriers to eliminate ground loops and transient voltage spikes, thus preventing noise coupling and component damage. The board implements deterministic data multiplexing with synchronized timing signals, facilitating real-time sampling and command distribution critical for control loop stability.
OPERATION:
The board translates these signals into the standard voltage and communication protocol formats required by the central processing unit, enabling seamless data exchange. It multiplexes multiple inputs and outputs, coordinating timing to ensure real-time, deterministic transfer of critical parameters such as turbine speed, position feedback, and control commands. The board continuously monitors communication channels for signal faults, noise, or transmission errors, and reports any anomalies to the controller for prompt fault handling and system safety.
COMPATIBILITY:
The board supports standardized signal voltage levels (typically ±10 VDC) and communication protocols utilized within the Mark IV system architecture. It can reliably connect to various high-level sensor inputs, including LVDTs, proximity probes, and pressure transmitters, ensuring seamless data integration for turbine control and protection functions. Additionally, the DS3800NBIE maintains electrical and mechanical compatibility with existing Mark IV hardware, allowing it to be used for system upgrades, maintenance, replacements, or new installations without requiring modifications to the control system wiring or configuration.
WOC has the largest stock of GE Speedtronic control systems OEM replacement parts. We can also repair your faulty boards and supply unused and rebuilt boards, backed by a warranty. Our team of experts is available 24/7 to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.
What is the function of the Bridge Interface Board?
The Bridge Interface Board serves as a signal conditioning and interface module that connects and converts signals between sensors (such as strain gauges, LVDTs, or other bridge-type transducers) and the main control system. It ensures accurate signal scaling, filtering, and isolation for reliable turbine or process control.
What types of sensors does the Bridge Interface Board support?
It is designed to work primarily with Wheatstone bridge sensors like strain gauges, pressure sensors, and load cells. It can also interface with other types of sensors that output bridge signals, providing excitation voltage and signal amplification.
What is the input voltage range for the Bridge Interface Board?
The board typically accepts input signals within the millivolt range, commonly ±10 mV to ±100 mV from the bridge sensors. Specific models may support different ranges, so refer to the technical specifications for exact values.
