Product Core Brief
- Part Number: DS2020CMB1206CGDDD8E
- Brand: GE (GE Energy / GE Digital / GE Industrial Systems)
- Series: GE Speedtronic Mark VI / DS2020
- Core Function: CMB control module board used within the Mark VI turbine control architecture.
- Product Type: Mark VI CMB Control Module Board
- Key Specs: Mark VI control module family | UCVX/VCMI-based architecture | VME rack interface | legacy/obsolete product
- Condition: New Original / New Surplus
Product Introduction
GE DS2020CMB1206CGDDD8E is a control module board for the GE Speedtronic Mark VI control system family. The “CMB” designation indicates it belongs to the Mark VI control module family, which typically includes communication and processing functions such as VCMI and UCVX boards installed in standard VME racks.
In Mark VI systems, control modules , , and are built around 21-slot VME racks. Each control module typically includes a VCMI communication card on the leftmost slot and a UCVX main processing card, followed by optional signal processing cards such as VAIC, VAOC, VCCC, VGEN, VPRO, and others. The CMB board is part of this architecture and is used for turbine control, protection, and monitoring functions.
However, public documentation for the exact DS2020CMB1206CGDDD8E suffix is limited. The specific board type (VCMI, UCVX, or other signal processing card), connector configuration, LED indicators, jumper settings, and firmware version should be verified from the physical board label and GE Mark VI manuals.
Some third-party listings may describe this part number as an analog I/O board, relay output board, or unrelated module. Those descriptions should not be treated as authoritative without verification against the physical board label and GE documentation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (GE Energy / GE Digital / GE Industrial Systems) |
| Part Number | |
| Product Type | CMB Control Module Board |
| Series | GE Speedtronic Mark VI / DS2020 |
| Typical Application | Control module within Mark VI turbine control system |
| Architecture | VME rack-based, VCMI/UCVX family |
| Related Cards | VCMI, UCVX, VAIC, VAOC, VCCC, VGEN, VPRO, VPYR, VRTD, VSOV, VTUR, VVIB |
| Status | Legacy / Obsolete |
Note: The CMB control module function and Mark VI VME rack architecture are documented for the DS2020CMB family. The exact board type (VCMI, UCVX, or signal processing card), connector pinout, LED indicators, jumper map, and CGDDD8E-specific configuration should be verified from the physical board label and GE Mark VI manuals.
Quality Control Process (DYNAMIC GENERATION)
- Visual and label inspection. We check the part number, suffix, PCB surface, connectors, LEDs, and mounting hardware for damage or corrosion.
- CMB function verification. We confirm the board matches the DS2020CMB1206CGDDD8E control module description and is not mislabeled as an analog I/O, relay output, or unrelated module.
- Connector and continuity check. All connectors are verified for correct pin continuity and no short circuits.
- Component inspection. LEDs, jumpers, ICs, and other surface-mounted components are inspected for visible damage or failed components.
- Final packaging. After passing inspection, the board is anti-static bagged and foam-packed for shipment.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Confirm CMB function before installation. DS2020CMB1206CGDDD8E is a Mark VI control module board; do not substitute it with TCQA, TCEB, TCPD, PDM, or other Mark V/Mark VI I/O boards.
❗ Ignore conflicting third-party descriptions. Some listings may describe this part number as an analog I/O board or relay output board; verify against the physical board label and GE documentation.
❗ Record jumper and switch positions before removal. Document all jumper settings and connector positions for correct restoration after replacement.
❗ Label all connectors before removal. Miswiring control module connections can cause communication failures, incorrect control outputs, or turbine trips.
❗ Verify VCMI/UCVX slot position. In Mark VI VME racks, VCMI is typically in the leftmost slot followed by UCVX; incorrect slot placement can cause system faults.
❗ Check LED status before removal. Document LED states for troubleshooting reference after replacement.
❗ Handle as ESD-sensitive equipment. Always use anti-static wrist straps and handling procedures during removal, installation, and storage.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE | GE | Direct | Same part number; verify board type, connector pinout, and jumper settings. |
| GE | GE DS2020CMB variants | Needs Adaptation | Same CMB family; suffix differences may affect board type or firmware version. |
| GE | GE IS200VCMIH2B / IS200UCVXH2 | Not Compatible | Mark VIe boards; different platform and architecture. |
| GE | GE DS200TCQA / DS200TCRAG1 | Not Compatible | Mark V analog I/O and relay output boards; different platform. |
| GE | GE DS2020PDMAG6 | Not Compatible | PDM power distribution module; different function entirely. |
Benchmark highlights
-
- GE Speedtronic Mark VI CMB control module board.
- Part of the Mark VI VME rack-based control architecture with VCMI/UCVX family.
- Used within control modules ,
, and for turbine control, protection, and monitoring.
- Compatible with Mark VI signal processing cards including VAIC, VAOC, VCCC, VGEN, VPRO, VPYR, VRTD, VSOV, VTUR, and VVIB.
- Legacy product; best suited for existing Mark VI system maintenance and like-for-like replacement.
