The General Electric 4116J89-G02, also cataloged as the 4116J89 Oscillator Circuit Board, operates as a dedicated hardware component for 3 kHz carrier excitation signal generation within GE Speedtronic turbine control platforms.
Hardware Specifications
Parameter
Specification
Model
4116J89-G02
Brand
General Electric (GE)
Origin
USA
Weight
0.45 kg
Dimensions
215 mm x 125 mm x 20 mm
Operating Temp
0 to 60 deg C
Power Consumption
5 W nominal
Output Signal Frequency
3 kHz (+/- 0.5%)
Circuit Type
Precision AC Oscillator Board
Target Application
Speedtronic Turbine Control System
Backplane Bus and Signal Dynamics Integration
The General Electric 4116J89-G02 module interface utilizes high-stability reference circuitry engineered to prevent channel-to-channel signal degradation and backplane power noise coupling. Key electrical performance traits include:
Carrier Frequency Output: Delivers a clean 3 kHz AC excitation voltage required for position feedback sensor loops.
Backplane Noise Attenuation: Incorporates onboard passive filtering to isolate sensitive control signals from high-frequency backplane switching noise.
Thermal Frequency Drift Control: Maintains target frequency output within tolerance across operating ambient ranges from 0 to 60 deg C.
Frequently Asked Questions
Q: Can the 4116J89-G02 module be removed or inserted under live backplane power?
A: No. Removing or inserting the oscillator board under live power can generate electrical transients on connected sensor feedback loops. De-energize the card rack power before replacement.
Q: What primary condition indicates potential failure of the 3 kHz oscillator output?
A: Loss of the 3 kHz carrier excitation signal causes connected linear position feedback channels to register out-of-range signal fault conditions.
Field Installation Guidelines
Verify complete electrical isolation of the card enclosure backplane before inserting or removing the card assembly.
Wear an ESD protective grounded wrist strap prior to handling the printed circuit board assembly.
Align the board with card guide rails and seat the card firmly into the backplane edge connector before tightening retaining hardware.
Maintain dedicated cable shield terminations at the entry terminal block to minimize external electromagnetic interference.
