GE IS215WETAH1BB Mark VI Printed Circuit Board
Product Overview
IS215WETAH1BB is a printed circuit board under the GE Mark VI control system. As a VME‑bus Ethernet communication adapter board, it undertakes data interaction between the main control rack and field distributed devices. IS215WETAH1BB bridges the VME backplane bus and industrial Ethernet link, providing deterministic communication channels for turbine unit control systems to deliver control commands and return field measurement point data.
Inside gas and steam turbine control cabinets, IS215WETAH1BB occupies a standard 6U VME slot and fits the complete Mark VI Speedtronic hardware architecture. It is a critical hardware unit for system network interconnection, widely applied for spare‑part replacement and system retrofit & upgrade of existing units.

Technical Specifications
| Part Number & Model | IS215WETAH1BB |
| Product Type | VME Ethernet Adapter Printed Circuit Board |
| Series | Mark VI Speedtronic |
| Bus Interface | 32‑bit VMEbus |
| Network Interface | Dual RJ45 Ethernet ports, compliant with IEEE 802.3 standard |
| Power Supply | VME backplane +5VDC power supply |
| Operating Temperature | ‑30℃ ~ +65℃ |
| Physical Dimension | 330 mm × 100 mm × 200 mm |
| Unit Weight | 1.75 kg |
| Installation Specification | Standard 6U VME rack single‑slot installation |
| Communication Mode | Supports simplex and dual‑redundant network operation modes |

Core Advantages
- IS215WETAH1BB adopts industrial‑grade anti‑interference hardware, which can run stably for a long time in power plants, petrochemical plants and other environments with heavy electromagnetic interference.
- Supports dual‑link redundant communication. Data transmission of the control system will not be interrupted when one single network link fails, reducing the risk of single‑point communication failure.
- Complies with Mark VI platform hardware specifications. It can be directly inserted into slots of compatible racks without additional rack modification, shortening downtime for spare‑part replacement.
- Controllable communication latency meets real‑time data interaction requirements of turbine control and guarantees timeliness of unit interlock and protection signal transmission.
Status indicator LEDs are integrated on the circuit board. On‑site maintenance personnel can quickly locate link and hardware fault points for convenient troubleshooting.

Product Features
- Integrated all‑in‑one circuit‑board design with built‑in signal isolation circuit to isolate electrical interference between field network side and VME backplane side.
- Dual independent Ethernet channels can connect to HMI network and field I/O network respectively to realize network partition isolation.
- Compatible with the complete Mark VI firmware system. No special customized driver is required and it directly matches the software version of existing units.
- Surge‑protection components are equipped on‑board to suppress transient voltage surges inside cabinets.
- Hot‑swap maintenance is supported. Board replacement can be completed online under part of architectures to reduce unit downtime.
- Status LEDs are arranged on the board panel to intuitively indicate power supply, link and hardware diagnostic status.
Application Fields
- Thermal‑power gas turbine control system: realize network connection between main control unit, HMI and remote I/O stations.
- Steam‑turbine combined‑cycle power plant: serve as data communication link for turbine protection system.
- Petrochemical process turbine‑driven equipment: spare parts for Mark VI control system of large compressor units.
- Large steam‑driven‑equipment control cabinets in metallurgy industry: spare‑part replacement for hardware retrofit of old units.
Key power equipment in industrial process control: VME‑architecture systems requiring highly‑reliable industrial Ethernet communication.

Comparison with Peer‑brand Products
- IS215WETAH1BB focuses on Ethernet network communication adaptation. It is positioned as a system network interface board and does not undertake main‑processor computing tasks.
- Compared with IS215WEPAH2BB processor board: WEPA series undertakes system computing logic, while WETA (IS215WETAH1BB) is only responsible for network forwarding and communication. The two are functionally complementary and cannot be directly replaced with each other.
- Compared with IS215UCVEM06 bus‑controller board: UCVE focuses on backplane bus scheduling, while IS215WETAH1BB focuses on external Ethernet output. They have different duties inside racks and are often deployed together in project configurations.
- IS215WETAH1BB is only compatible with Mark VI VME hardware racks and cannot be directly backward‑compatible with the older‑generation Mark V hardware platform.
Related Matching Products
- IS210BPPBH2CAA: VME rack backplane power‑distribution board, allocating power supply for the whole slot units.
- IS215WEPAH2BB: Mark VI main‑processor board. IS215WETAH1BB cooperates with it to complete the whole control‑communication process.
- IS215UCVEM06: Bus‑channel controller, managing data scheduling of each board card inside VME backplane.
- IS200TRPAH1A: Trip terminal board, hardware unit for field‑signal wiring terminals.
- IS200VTURH1B: Turbine‑protection board, processing unit overspeed and flame‑detection protection logic.
- IS200ACLAH1A: Application‑control‑layer module, expanding system I/O logic capability.
Recommended Peer‑brand Models
- IS215WEPAH2BB, Mark VI Processor Board
- IS210BPPBH2CAA, Backplane Power Distribution Board
- IS215UCVEM06, Bus Channel Controller Board
- IS200VTURH1B, Turbine Protection Printed Circuit Board
- IS200TRPAH1A, Primary Trip Terminal Board
- IS200ACLAH1A, Application Control Layer Module
- IS200DSPXH1DBD, Digital Signal Processor Board
- IS215WEMAH1BB, Embedded Processor Circuit Board
- IS200ADIIH1AAA, Dual‑Channel I/O Board
- IS200AEPAH1ADC, Printed Circuit Board
- IS215WETAH1CA, Remote I/O Main Board
- IS200ATBAG1BAA1, Interface Circuit Board
- IS210BPPCH1AEC, Bridge Personality Processor Module
- IS200ACLEH1A, Application Control Layer Module
- IS200PTURH1B, Turbine Protection I/O Pack
FAQ
Q: Can IS215WETAH1BB directly replace IS215WETAH1CA?
A: There are differences in hardware revisions between the two models, and their board‑card interface definitions are not fully consistent. Direct replacement is not allowed. Before replacement, please check unit firmware version and rack hardware list.
Q: How many VME rack slots does IS215WETAH1BB occupy for installation?
A: IS215WETAH1BB occupies one single slot of standard 6U VME rack. No extra adjacent slot space is required.
Q: What project information shall be provided to confirm compatibility when purchasing IS215WETAH1BB?
A: You need to provide Mark VI firmware version number of existing control system, rack model and part number of currently‑used matching processor to confirm hardware‑version matching and avoid inaccessibility after delivery.
Q: Will IS215WETAH1BB fault cause direct unit trip‑out?
A: Under dual‑redundant network configuration, failure of single IS215WETAH1BB will not directly trigger trip‑out; under non‑redundant single‑network configuration, board‑card failure will lead to communication interruption and result in interlock shutdown.
Q: Does IS215WETAH1BB support hot‑swap operation?
A: Hot‑swap is supported at hardware physical level. Actual operations shall comply with unit maintenance procedures. Configuration strategies of some projects restrict online card‑pulling. Shutdown or load‑reduction plan must be prepared before operation.
Q: What pre‑power‑on inspections shall be carried out after IS215WETAH1BB delivery?
A: Check whether the board card has collision damage and whether gold fingers are oxidized; verify complete printed part number; confirm cabinet power‑supply voltage is within technical‑specification range, then insert it into slot for power‑on.
Q: What is the general lead‑time for IS215WETAH1BB supply?
A: Spot inventory supports fast delivery. When market supply is short, this model belongs to spare parts of legacy series with volatile lead‑time. Confirm inventory status before placing orders.
Q: Can IS215WETAH1BB be applied to Mark VIe system?
A: IS215WETAH1BB hardware architecture targets Mark VI VME platform and cannot be directly used for Mark VIe system. Other corresponding WETA series part numbers shall be selected for VIe platform.
Notes
- Electro‑static discharge (ESD) protection shall be implemented throughout handling and installation of IS215WETAH1BB. Static electricity may cause latent damage to internal chips on circuit boards.
- Operation beyond ‑30℃~+65℃ temperature range is prohibited. High‑temperature and high‑humidity environment will accelerate aging of board‑card components.
- Mixing different hardware‑revision versions of IS215WETAH1BB in one redundant system is forbidden, which may easily trigger communication incompatibility errors.
- Spare‑part storage environment shall be dry and ventilated. Keep circuit boards away from metallic dust and corrosive gas.
- After board‑card replacement, perform communication‑link test inside control‑system software. Confirm complete normal data transceiving before putting unit under load operation.
Product Tags
IS215WETAH1BB,GE Mark VI Printed Circuit Board,Mark VI Speedtronic,VME Ethernet Adapter Board,Gas Turbine Spare Parts,Industrial Control PCB Board,Mark VI Communication Interface Board,GE Turbine Control System Spare Parts









