Description
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Woodward |
| Part Number | 9807-164 |
| System Compatibility | Woodward MicroNet TMR / MicroNet Plus Racks |
| Operating Voltage | 24 V DC (Power supplied via rack backplane) |
| Power Dissipation | 18 W maximum |
| Processor Architecture | High-performance 32-bit RISC controller |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | −40 °C to +85 °C |
| Humidity Rating | 5% to 95% non-condensing |
| Communication Interfaces | Serial RS-232/RS-485 |
| Backplane Interface | Standard VMEbus edge connector |
Product Introduction & Supply Chain Strategy
The Woodward 9807-164 is a high-reliability digital control module designed for Woodward MicroNet systems used in steam turbine, gas turbine, and compressor management applications. It executes real-time control algorithms, process monitoring, and system sequencing required to keep critical rotating machinery running smoothly.
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability.
From a supply chain standpoint, procuring a 9807-164 as New Surplus eliminates the massive financial exposure of unexpected turbine shutdowns. Refurbished control boards frequently suffer from silent thermal fatigue and degraded power supply capacitors that cosmetic cleaning cannot fix. In power generation or petrochemical operations, an unexpected CPU failure can cost upwards of $100,000 per day in lost production. Keeping a verified New Surplus unit in your safety stock buffer ensures immediate recovery without relying on risky second-hand alternatives or long OEM lead times.

9807-164

9807-164
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Disconnect main power feeds to the MicroNet rack and execute standard Lock-Out/Tag-Out (LOTO) protocols.
- Put on a grounded ESD wrist strap connected to the main cabinet grounding bus.
- Document all DIP switch positions, jumper settings, and field cabling connections using clear photographs.
Stage 2: Removal
- Loosen the top and bottom captive screws securing the module faceplate to the rack frame.
- Unlatch the ejector handles at the top and bottom of the card simultaneously to break the backplane seal.
- Slide the module straight out along the card guide rails, placing it immediately into an ESD-safe shield bag.
Stage 3: Installation (Clone & Seat)
- Configure the hardware jumpers and DIP switches on the new 9807-164 to match the original card’s configuration exactly.
- Slide the new module into the open rack slot along the card guides until the backplane connectors touch.
- Push both ejector handles inward until they snap flush, then tighten the top and bottom retaining screws.
Stage 4: Power-On & Testing
- Check cabinet 24 V DC supply rails to verify system voltage is within operational limits.
- Apply rack power and monitor the front-panel diagnostic LEDs through the initialization sequence (confirming RUN illuminates green and FAULT clears).
- Connect control software via the diagnostic interface to verify CPU handshaking and firmware state.
Firmware/Software Versions & Upgrade Notes
- Recommended Firmware: Requires MicroNet system software bundle V3.04 or higher for correct driver recognition.
- Compatibility Notice: Attempting to install this board in chassis running legacy application software prior to V2.10 will result in backplane communication faults and failed boot cycles.
- Upgrade Risks: Do not flash or alter system software while performing a hardware replacement. Swapping hardware while simultaneously altering application logic creates diagnostic ambiguity. Always confirm stable CPU communication on existing software baselines before attempting system-level updates.
Frequently Asked Questions (FAQ)
Is this Woodward 9807-164 module genuinely brand new?
Yes. This module is 100% New Surplus inventory from original plant reserve stocks. It has never been installed in a live rack, used for testing, or rebuilt from damaged hardware.
Why shouldn’t we buy a lower-cost refurbished Woodward card?
Refurbished control cards often contain aged micro-electronic components that have endured years of high ambient thermal stress. Choosing a refurbished unit to save upfront capital exposes your plant to sudden CPU halts that can cause tens of thousands of dollars in emergency maintenance and lost production.
Is the Woodward 9807-164 an obsolete part?
Yes, this specific part number is classified as legacy hardware by Woodward. Because factory production is limited or discontinued, securing a verified New Surplus card is the best strategy to maintain existing MicroNet architectures without incurring major system upgrade costs.
Can I hot-swap this processing module while the rack is powered?
No. Removing or inserting the 9807-164 while the backplane is energized risks causing electrical arcs across VMEbus pins, which can ruin the processing board and damage adjacent I/O modules in the rack. Always power down the cabinet before pulling modules.
What warranty coverage is included with this item?
We back every 9807-164 with a full 1-year replacement warranty supported by our comprehensive inbound functional and electrical inspection procedures.

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