Legacy Serial Communication for Mark V Systems
The GE DS200SNPAH1A DS200SNPAH1ABA interface card enables SNP protocol communication for GE Mark V turbine controls. This card translates between the backplane bus and serial networks. Two serial ports support both RS-232 and RS-485 physical layer standards. Consequently, this GE DS200SNPAH1A DS200SNPAH1ABA card connects legacy HMIs and programming devices to Mark V systems.
Serial Communication & Protocol Specifications
The GE DS200SNPAH1A DS200SNPAH1ABA supports baud rates from 300 to 19.2 kbps for flexible integration. You can configure data format parameters including parity and stop bits via software. Four optocouplers provide 1500V isolation between serial ports and logic circuits. Two termination resistor packs match network impedance for long-distance RS-485 runs. Therefore, this card ensures reliable communication in electrically noisy turbine halls.
| Parameter | Detailed Specification |
|---|---|
| Serial Ports | 2 (one RS-232, one RS-485) |
| Supported Protocol | GE SNP (Serial Network Protocol) |
| Baud Rate | 300 to 19.2 kbps (software selectable) |
| Data Format | 8 data bits, 1 stop bit, no parity (configurable) |
| Input Voltage | 24V DC ±10% |
| Power Consumption | 5W typical |
| Dimensions | 180mm x 120mm x 25mm |
| Weight | 0.32 kg (0.71 lbs) |
| PCB Layers | 4 |
| Onboard Components | 1 UART, 2 serial drivers, 4 optocouplers, 2 termination resistor packs |
| Connector Count | 4 (power, RS-232, RS-485, backplane) |
| Status Indicators | 4 LEDs (power, TX, RX, fault) |
| Energy Storage | 470 µF (power filtering capacitance) |
| Isolation Voltage | 1500V (serial ports to logic) |
| Max Cable Length | 15m (RS-232), 1200m (RS-485) |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Installation & Network Configuration
You insert the GE DS200SNPAH1A DS200SNPAH1ABA into a standard Mark V rack slot. Connect your RS-232 device to the 9-pin D-sub port for short-distance links. For long-distance networks, use the RS-485 terminals with shielded twisted-pair cable. Four status LEDs provide immediate visual feedback for power, transmit, receive, and fault conditions. Consequently, maintenance teams diagnose communication issues without special tools.
Operational Advantages & Legacy Integration
The GE DS200SNPAH1A DS200SNPAH1ABA supports RS-485 cable runs up to 1200 meters for remote HMI placement. Four optocouplers protect the main backplane from voltage surges on serial cables. The 470 µF capacitor filters power supply noise for stable operation. A red FAULT LED illuminates when the card loses communication with the CPU. Therefore, this SNP card provides reliable legacy connectivity for Mark V turbine control systems.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 170 × 145 × 65 mm |
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