Woodward 5464-473 NetCon Fibre Optic Transceiver Module Rev E

Woodward 5464-473 NetCon Fibre Optic Transceiver Module (Rev E)

The Woodward 5464-473 (Revision E) is a high-speed, electrically isolated fibre optic transceiver module engineered for the Woodward NetCon 5000 digital control system architecture. Built to eliminate electromagnetic interference (EMI), radio frequency interference (RFI), and ground potential differences across high-voltage machinery spaces, this module converts bidirectional electrical serial data signals from the NetCon backplane into optical light pulses for transmission over multimode fibre optic cabling.

The 5464-473 serves as the critical communication bridge between the central processing unit (CPU) chassis and remote I/O expansion racks or redundant control nodes. Revision E incorporates updated optical receiver sensitivity tolerances and hardened transient voltage suppression across the backplane bus interface to withstand severe engine room thermal and vibrational loads.

Model Details

• Manufacturer: Woodward Governor Company (Woodward, Inc.)
• Manufacturer Part Number (MPN): 5464-473
• Hardware Revision: Rev E
• System Architecture: NetCon 5000 Digital Control System
• Module Type: Dual-Channel Fibre Optic Link Transceiver
• Form Factor: 6U Eurocard Plug-In Module (Single-Slot Width)
• Front Panel Indicators: LED status indicators for Power Good (PWR), Transmit Activity (TX1/TX2), Receive Activity (RX1/RX2), and Link Fault/Loss of Signal (LOS)

Features

1. Complete Galvanic Isolation: Eliminates ground loops and high-voltage surge propagation between remote turbine skids, switchgear rooms, and main engine control rooms via non-conductive optical fibre links.
2. Dual-Channel Redundant Architecture: Supports primary and backup optical communication paths to maintain uninterrupted deterministic data transfer during single-channel cable degradation or maintenance.
3. High EMI/RFI Immunity: Immune to electromagnetic noise generated by variable frequency drives (VFDs), high-current marine alternators, and heavy switchgear transients.
4. Hot-Swappable Backplane Interface: Designed with staged-length DIN 41612 edge connectors allowing safe module insertion and extraction in redundant NetCon chassis without powering down the prime mover.
5. Revision E Optical Stabilization: Features temperature-compensated 820 nm LED transmitters and PIN photodiode receivers that prevent signal drift across ambient operating temperatures up to 70 °C.

Compatible Equipment Models

• Control Chassis: Woodward NetCon 5000 Standard Main Chassis (5462-series), NetCon 5000 Remote I/O Expansion Chassis, and MicroNet TMR / Simplex legacy migration racks utilizing NetCon I/O backplanes.
• Companion Modules: Woodward 5464-414 / 5464-658 CPU Modules, 5464-421 High-Density Discrete I/O Modules, and 5464-465 Analog Input/Output Modules.
• Prime Movers: General Electric LM2500 / LM6000 Marine & Industrial Aeroderivative Gas Turbines, Rolls-Royce Allison 501-K, Solar Turbines Centaur/Taurus, Wärtsilä and MAN B&W Dual-Fuel Marine Propulsion Engines.

Part Number Cross-References

• Base Model Number: 5464-473
• Superseded / Earlier Revisions: 5464-473 Rev A, 5464-473 Rev B, 5464-473 Rev C, 5464-473 Rev D (Rev E is backward-compatible with all earlier hardware revisions in the same chassis slot).
• Related NetCon Optical Interface Variants: 5464-472 (Single-Channel Fibre Optic Interface), 5466-036 (MicroNet Fibre Optic Transceiver).
• NSN (NATO Stock Number): 5998-01-482-9104 (Marine/Naval Turbine Control Spare).

Frequently Asked Questions

Is the Woodward 5464-473 Rev E backward compatible with older revisions (Rev A through Rev D)?

Yes. Revision E is fully form, fit, and function backward-compatible with Revisions A, B, C, and D. You can install a Rev E module directly into an existing NetCon 5000 slot without modifying backplane jumpers, firmware configurations, or optical cabling.

Can the Woodward 5464-473 be hot-swapped while the turbine or engine is running?

Yes, provided the NetCon 5000 system is configured with redundant communication channels (Channel A and Channel B) and the redundant link is healthy with zero active fault LEDs. Always verify that the standby link is carrying traffic before unlatching the active module.

What type of fibre optic cable is required for the Woodward 5464-473?

The module requires multimode graded-index glass fibre optic cable terminated with ST (Straight Tip) bayonet connectors. Standard 62.5/125 µm multimode fibre is recommended to achieve the full 12 dB optical power budget and maximum transmission distance of 2,000 meters; 50/125 µm multimode fibre is also supported with a reduced optical coupling margin. Single-mode fibre and plastic optical fibre (POF) are not compatible.

Why is the LOS (Loss of Signal) LED illuminated on my 5464-473 module?

An active LOS indicator means the PIN photodiode receiver is not detecting an incoming 820 nm optical carrier above its threshold level. Common causes include reversed TX/RX patch cords, dirty or damaged ST ferrules, a broken fibre core due to an excessive bend radius, or a failed LED transmitter on the opposite end of the link.

Does the 5464-473 require any DIP switch or jumper configuration prior to installation?

No. The Woodward 5464-473 is hardware-addressed by its physical slot position in the NetCon 5000 backplane and contains no user-configurable DIP switches or jumpers. Once seated in the designated transceiver slot and connected to the optical patch cables, the module initializes automatically upon backplane power-up.