Description
The GE General Electric IS200ISBDG1A, also identified as IS200ISBDG1AAA, is an InSync Bus Delay Module used in GE Mark VI turbine control and EX2100 excitation control applications. The ISBD board provides bus timing and synchronization functions within the control system. It includes a 24 VDC input, Full Duplex communication interface, XMIT Out and RCV In connections, a 20-pin ribbon connector, two status LEDs, test points, and onboard signal-conditioning circuitry. Published specifications identify 12 channels and a 1–5 VDC transmitter input span.
| Parameter | Specification |
|---|---|
| Brand | GE General Electric |
| Model | IS200ISBDG1A |
| Full Part Number | IS200ISBDG1AAA |
| Series | Mark VI / EX2100 |
| Product Name | InSync Bus Delay Module |
| Functional Acronym | ISBD |
| Number of Channels | 12 |
| Input Span | 1–5 VDC |
| Power Supply | 24 VDC Input |
| Dimensions | Approx. 101.6 × 330.2 mm |
| Weight | Approx. 14 oz / 397 g |
| Place of Manufacture | USA |
| Product Status | Legacy / discontinued |
| Condition | Verify actual listing condition |
Key Features
• Designed for GE Mark VI and EX2100 control applications
• Provides InSync bus delay and synchronization functions
• Supports 12 signal channels
• 1–5 VDC transmitter input span
• P4 provides 24 VDC module power input
• P1 provides Full Duplex communication
• P2 provides XMIT Out connection
• P3 provides RCV In connection
• P5 provides a 20-pin vertical ribbon interface
• Includes Carrier Detect and Power LED indicators
• Includes onboard test points and signal-conditioning circuitry
• Four corner terminal connections labeled E1, E2, E3, and E4
• Standard GE IS200 Mark VI board construction
Common Questions & Answers
Q: What is the IS200ISBDG1A used for?
A: It is an InSync Bus Delay Module used to provide timing and synchronization functions within compatible GE Mark VI/EX2100 control systems.
Q: What is the full part number?
A: The associated extended identification is IS200ISBDG1AAA.
Q: How many channels does the board support?
A: Published specifications identify 12 channels.
Q: What input signal range is specified?
A: The published transmitter input span is 1–5 VDC.
Q: What connectors are provided?
A: The board includes Full Duplex, XMIT Out, RCV In, 24 VDC input, and a 20-pin ribbon connector.
Q: Where was the board manufactured?
A: Published references identify GE’s Salem, Virginia facility as the manufacturing location.
Q: Is IS200ISBDG1AAA the same board as IS200ISBDG1A?
A: IS200ISBDG1AAA is an extended identification associated with the IS200ISBDG1A board family. The complete marking and revision should be compared before replacement.
Safety & Troubleshooting
• Disconnect and isolate control power before removing or installing the module.
• Verify the complete part number and revision before replacement.
• Check the 24 VDC supply and P4 terminal connections if the power LED is off.
• Inspect the Full Duplex, XMIT, and RCV connections for communication problems.
• Check ribbon-cable seating and connector pins before replacing the board.
• Verify signal wiring and input levels when channel data is abnormal.
• Do not change wiring or handle the PCB while the control system is energized.
• Follow the applicable GE turbine or excitation-control maintenance procedures before commissioning.
Recommended GE Models
- IS200ISBAH1A — InSync ISBus Application Board
- IS200ISBAH1B — InSync ISBus Application Board
- IS200ISBBG1A — InSync Bus Bypass Board
- IS200ISBBG1AAA — InSync Bus Bypass Card
- IS200ISBBG2A — InSync Bus Bypass Board
- IS200ISBEH1A — InSync Bus Extender Board
- IS200ISBEH2A — InSync Bus Extender Board
- IS200ISBEH2ABB — InSync Bus Extender Card
- IS200ISRJG1A — InSync RJ45 Adapter Card
- IS200IIDAG1A — Innovation Series I/O Interface Board
- IS200IIDAG1ABB — DC Innovation Card
- IS200DSPXH1A — Digital Signal Processor Board
- IS200BICLH1A — Bridge Interface Board
- IS200BPIA — Bridge Personality Interface Board
- IS200EXHSG1A — Exciter Interface Board
