• Base Part Number: DS200ACNAG1 | Abbreviation: ACNA | Brand: General Electric | Applicable System: Mark V / EX2000 / DC2000
• Board Type: Bare PCB substrate, without welded components; DS200ACNAG1A/ADD are complete assembly variants
• Communication Protocol: Token passing ARCNET industrial real-time bus, transmission rate 2.5Mbps
• External Interface Layout: Reserved positions for dual BNC coaxial ARCNET ports, 6-pin vertical backplane terminal block, 2 built-in communication relay mounting positions
• Internal Bus Connection: Dedicated signal channel for docking LDCC main control board backplane bus
• Power Supply: Supports rack 5VDC logic power and auxiliary fault detection voltage input for excitation field ground failure alarm signal collection
• PCB Protection: Standard factory conformal coating process, anti-dust, moisture and corrosive gas
• Operating Temperature: -30°C ~ +65°C | Storage Temperature: -40°C ~ +85°C
• Mounting Form: Small auxiliary plug-in daughterboard installed inside Mark V control rack
• Certifications: CE, UL industrial EMC anti-interference, power generation safety standard compliance
• Version Distinction: DS200ACNAG1 = blank bare PCB; DS200ACNAG1A = primary assembled finished board; DS200ACNAG1ADD = upgraded full assembly with reinforced components

• ARCNET deterministic token bus design, eliminate data collision, guarantee microsecond-level synchronous transmission of excitation closed-loop control signals
• Dual BNC coaxial port reserved layout, support daisy-chain network topology to expand multiple HMI and auxiliary drive node access
• Two onboard communication relays realize signal isolation and routing between main processor and local operation terminal
• Built-in excitation fault signal detection circuit, collect field ground short circuit, diode damage and field abnormal alarm signals and upload to main CPU via ARCNET bus
• Complete communication self-diagnosis circuit layout, after component assembly, can monitor bus disconnection, signal attenuation and board power loss faults in real time
• Compact small-size daughterboard design, does not occupy independent main rack slots, saves cabinet installation space
• Backward fully compatible with Mark V AAHA ARCNET hub board, DS200CPU main control board and 323A2374P3 local mini-terminal
• Support hot-swap replacement under redundant rack configuration, no full unit shutdown required during maintenance overhaul after assembly

• Thermal & Combined Cycle Power Plant: EX2000 generator excitation system ARCNET communication link board, Mark V gas/steam turbine auxiliary control rack
• Hydropower Station: Large hydro generator excitation regulator internal network signal transmission unit
• Oil & Gas Industry: Offshore platform turbine generator excitation cabinet communication interface spare part
• Industrial Cogeneration Station: Reciprocating engine generator set EX2000 excitation control communication equipment
• Equipment Retrofit & Maintenance: Bare PCB substrate for repairing aging DS200ACNAG1A/ADD assembled communication boards

Product Picture