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GE IS230TNCIH4C | Triple-redundant serial communication gateway
GE IS230TNCIH4C
Function:Triple-redundant serial communication gateway
Protocols Supported :Modbus RTU, DNP3 L2, GE SNP/Genius
Port Configuration: 4× RS-485 (isolated), 2× RS-232
Baud Rates :300 bps to 115.2 kbps (software configurable)
Categories: GE
Tags: IS230TNCIH4C
Email：jllucky33@qq.com
phone：(86)17372046300
phone：(86)19389860630
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Product content
Here are the complete technical specifications for the GE IS230TNCIH4C, a Triplex Network Communication Interface module for Mark VI Speedtronic™ turbine control systems:
GE IS230TNCIH4C Technical Specifications
| Parameter | Specification |
| Function | Triple-redundant serial communication gateway |
| Protocols Supported | Modbus RTU, DNP3 L2, GE SNP/Genius |
| Port Configuration | 4× RS-485 (isolated), 2× RS-232 |
| Baud Rates | 300 bps to 115.2 kbps (software configurable) |
| Isolation Voltage | 1500V AC (port-to-port and port-to-ground) |
| Redundancy | TMR (2-out-of-3 voting) with <10ms failover |
| Operating Temperature | -40°C to +70°C (full performance range) |
| Power Consumption | 6W @ +5VDC (backplane powered) |
| MTBF | 280,000 hours (Telcordia SR-332 Issue 3) |
| Certifications | UL 508, IEC 60870-5-101/104, IEEE 1613 |
Key Features
1. Multi-Protocol Engine
- Simultaneous protocol support: Modbus RTU + DNP3 on separate ports
- Legacy SNP tunneling for GE Genius networks
2. Cyber-Secure Design
- DNP3 Secure Authentication (IEC 62351-5 compliant)
- Hardware write-protect jumper for configuration lockdown
3. Extreme Noise Immunity
- EMI/RFI filtering: 100dB attenuation @ 1GHz
- Surge protection: ±4kV (IEC 61000-4-5 Level 4)
4. Hot-Swap Architecture
- Blind-mate connectors for live replacement
- Automatic bus synchronization on insertion
Port Mapping & Pinout
| Port | Type | Pinout | Default Protocol |
| P1 | RS-485 | Terminals 1-2 (A/B) | Modbus RTU |
| P2 | RS-485 | Terminals 3-4 (A/B) | DNP3 L2 |
| P3 | RS-232 | DB9 (Tx/Rx/GND) | Engineering access |
| P4 | RS-232 | DB9 (Tx/Rx/GND) | Local HMI |
Critical Applications
- Grid Synchronization: DNP3 protocol for utility SCADA integration
- Turbine Sequencing: Modbus RTU comms with auxiliary PLCs
- Legacy Retrofit: SNP tunneling for GE Series 90-30 PLCs
Replacement & Obsolescence
⚠️ Discontinued (2021) – GE Legacy Support until 2031
| Solution | Part Number | Advantage |
| Modern Successor | IS420TNCIH6A | Dual Ethernet + IEC 61850 support |
| Drop-in Replacement | IS230TNCIH4D | Firmware v4.30+ (DNP3 SA v2) |
| Protocol Converter Kit | KIT-TNCI-MODTCP | Modbus RTU to TCP gateway |
Procurement & Support (Jinlin Electromechanical)
- Stock Status: 10 recertified units (GE-tested, 72hr burn-in)
- Lead Time: 5 days for recertified; 35 days for IS420TNCIH6A
- Services:
- Protocol migration (SNP to Modbus TCP)
- Cybersecurity hardening per NERC CIP
- Custom pinout adapters for non-VME racks
- Warranty: 36 months (recertified units)
📧 Configuration Templates: JLLucky33@qq.com
⚡ 24/7 Emergency Support: WhatsApp +86 19389860630
Critical Notes
- Security Vulnerabilities:
- Urgent patch required for firmware < v3.15 (CVE-2019-13946)
- Disable unused ports via IS230TBCIH series* terminal boards
- Load Limitations:
- Max 32 devices per RS-485 segment (termination required)
- Legacy Protocol Constraints:
- SNP limited to 1 master per network
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