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GE IS200SCNVG1ADC
Product Overview & Core Function
This module provides serial communication protocol conversion in extreme temperature environments, connecting RS-485, RS-232, and Modbus devices to the Mark VIe control network. The “ADC” suffix means GE upgraded the serial transceivers to parts that maintain their drive capability at low temperatures, added a temperature-compensated oscillator, and enhanced ESD protection on the serial ports. It is designed for outdoor cabinet applications where temperature swings are significant.
Detailed content
Technical Specifications
- Manufacturer: GE General Electric
- System Compatibility: Mark VIe, Mark VIeS
- Module Type: Serial Communication / Protocol Converter (Extended Temp)
- Serial Ports: 2 ports (RS-485 2-wire, RS-232 configurable)
- Protocols: Modbus RTU (master/slave), ASCII
- Baud Rates: 300–115,200 bps (holds over full temp range)
- Oscillator Accuracy: ±5 ppm over full temp range
- Data Formats: 7/8 data bits, parity, stop bits
- Digital Inputs: 4 (isolated, 24 VDC)
- Digital Outputs: 4 (24 VDC, 0.5 A)
- Serial ESD Protection: TVS diodes (8 kV contact discharge)
- Conformal Coating: Yes (acrylic-based, MIL-I-46058C compliant)
- Isolation: 2,500 V RMS (field-to-backplane)
- Operating Temperature: –40 to +70 °C ambient (extended)
- Storage Temperature: –55 to +85 °C
- Power Consumption: 6 W typical (slightly higher at cold temps)
- Mounting: VME-style Eurocard backplane (Mark VIe rack)
- Firmware: Field-upgradable via ToolboxST
Functional Features
- Cold-rated RS-485 and RS-232 transceivers that maintain timing and signal levels from –40 to +70 °C
- Enhanced ESD protection via TVS diodes
- Full conformal coating for outdoor/harsh environments
- Same core functionality as standard SCNVG1A with extended temperature capability
Application Scenarios
Connecting Modbus RTU and ASCII serial devices to the Mark VIe control network in outdoor or environmentally harsh installations where standard transceivers could lose 20% of their output drive at –40 °C.
Installation & Usage Notes
- Install in a Mark VIe rack VME-style Eurocard backplane.
- Use ToolboxST for firmware management and configuration.
- Ensure TVS diode protection is not bypassed in wiring.
- Verify conformal coating integrity for outdoor installations.
