Description
DS3800HRMB1N1L: Product Overview
The DS3800HRMB1N1L is a battery-backed ROM board that plugs into a motherboard carrier inside the Mark IV rack. It stores non-volatile configuration data, start-up sequences, fault logs, and calibration constants that must survive power outages without re-downloading from external tools. The card uses low-power EEPROM devices backed by an on-board lithium battery, ensuring >10-year data retention even when the turbine is off-line.
Physical implementation includes 30 gold-pinned jumpers for memory mapping, battery-health monitoring, and write-protect control. 20-pin ribbon interfaces carry address, data, and control signals to/from the CPU; keyed and gold-plated to prevent mis-insertion or fretting corrosion. Front-edge LEDs (green = battery OK, red = low battery) give real-time retention status—no laptop required during routine checks.
Environmental qualification meets –20 °C to +70 °C operation and 95 % RH non-condensing, permitting installation in turbine auxiliaries or control rooms with minimal HVAC. CE certification simplifies European project approvals.
DS3800NEPB1C1C
DS3800HRMB1N1L: Technical Specifications
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Model Number: DS3800HRMB1N1L
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Manufacturer: General Electric (GE Energy)
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Product Type: Battery-Backed ROM (EEPROM) Board
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Memory Type: EEPROM with on-board lithium battery
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Data Retention: >10 years @ 25 °C (battery dependent)
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Battery Type: 3 V lithium coin cell, field-replaceable
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Interface: 20-pin ribbon, keyed, gold-plated
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Jumpers: 30 (address decode, write-protect, battery test)
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Indicators: Green = battery OK, Red = low battery / fault
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Isolation: 500 V DC board-to-ground (standard Mark IV)
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Temp Range: -20 °C to +70 °C operational, -40 °C to +85 °C storage
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Humidity: 95 % RH non-condensing
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Certifications: CE, RoHS, Mark IV form-factor compliant
Core Features & Customer Value
10-Year Data Retention Without AC Power
On-board lithium cell maintains start-up curves, fault logs, and calibration constants through blackouts and long outages, eliminating re-commissioning time after station shutdowns.
On-board lithium cell maintains start-up curves, fault logs, and calibration constants through blackouts and long outages, eliminating re-commissioning time after station shutdowns.
Hot-Swappable Battery for Zero Downtime
Coin cell can be replaced in <2 min while the turbine remains on-line (battery-only domain), extending data-retention life indefinitely without rack shutdown.
Coin cell can be replaced in <2 min while the turbine remains on-line (battery-only domain), extending data-retention life indefinitely without rack shutdown.
Field-Configurable Memory Map
30 jumpers select memory blocks, write-protect, and battery-test modes—technician can re-purpose for different CPU firmware revisions using only a tweaker and the silk-screen legend, no software required.
30 jumpers select memory blocks, write-protect, and battery-test modes—technician can re-purpose for different CPU firmware revisions using only a tweaker and the silk-screen legend, no software required.
Harsh-Site Certified
-20 °C to +70 °C and 95 % RH allow installation in turbine auxiliaries with minimal HVAC; conformal coat and gold-edge connectors resist salt-fog and coal-dust, delivering >20-year life.
-20 °C to +70 °C and 95 % RH allow installation in turbine auxiliaries with minimal HVAC; conformal coat and gold-edge connectors resist salt-fog and coal-dust, delivering >20-year life.
DS3800NEPB1C1C
Typical Applications
Gas Turbine Start-Up Curve Storage
Retains acceleration schedule, fuel curves, and overspeed limits for Frame 7/9 heavy-duty units. Battery-backed EEPROM ensures exact start profile after station blackout, preventing thermal shock or emission exceedance.
Retains acceleration schedule, fuel curves, and overspeed limits for Frame 7/9 heavy-duty units. Battery-backed EEPROM ensures exact start profile after station blackout, preventing thermal shock or emission exceedance.
Steam Turbine Protection Log Retention
Stores vibration trends, trip set-points, and governor gains in Mark IV retrofits. Non-volatile memory survives power loss, enabling post-trip root-cause analysis without external download.
Stores vibration trends, trip set-points, and governor gains in Mark IV retrofits. Non-volatile memory survives power loss, enabling post-trip root-cause analysis without external download.
Remote Site & Island Mode Operation
Battery maintains island-mode settings during months-long grid outages at offshore or mining sites, eliminating need for technician visit to re-load parameters .
Battery maintains island-mode settings during months-long grid outages at offshore or mining sites, eliminating need for technician visit to re-load parameters .
