Technical Specifications Multi‑channel DC signal input interfaces, Mark V back‑plane bus connector, auxiliary DC power supplied by chassis back‑plane. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, relative humidity 5%‑95% non‑condensing. Conformal coating PCB anti‑corrosion protection. Mark V plug‑in board mechanical form.
Functional Features Collects multi‑group DC analog feedback signals from field transducers and power equipment. Executes signal filtering and amplitude conditioning for input DC signals. Transmits processed sampling data to main CPU board via Mark V back‑plane bus. Provides hardware over‑voltage protection for each signal input channel. Supports channel‑level hardware self‑diagnosis after power‑on.
Application Scenarios JB‑revision spare replacement circuit board for GE Mark V gas and steam turbine control systems, applied for power‑plant turbine‑control‑system maintenance and spare‑part renewal.
Performance Parameters Precise DC signal sampling precision, low signal drift, good noise‑filtering performance, stable channel‑fault‑detection response capability.
Material Composition Multilayer glass‑fiber epoxy printed circuit board with JB‑revision component layout. DC signal conditioning and filter components, over‑voltage protection devices. Gold‑plated Mark V back‑plane edge connector. Front‑panel metal bracket with status LED indicators. Conformal protective coating layer.
Structural Characteristics Standard Mark V chassis plug‑in board dimension. Rear gold‑plated edge connector mates with Mark V chassis back‑plane bus. PCB layout implements physical separation for analog‑signal area and digital‑bus logic area.
Working Principle Board obtains operating power from Mark V chassis back‑plane. External DC feedback signals enter input terminals and go through filter and conditioning circuit. Hardware monitoring circuit detects input‑channel abnormal operating status.
Installation Requirements Insert DS200DCFBG1BJB board into assigned chassis slot, tighten front‑panel fixing screws. Restore chassis power supply, complete system power‑on self‑test and DC‑signal channel functional verification.
Usage Notes Avoid mechanical scratch damage to conformal coating protective layer. Only use within compatible GE Mark V turbine control chassis.
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