GE PCI‑5565 PCI High-Speed Real-Time Communication Card

GE PCI‑5565 Reflective Memory Board

Configured for deterministic, real-time data transfer in simulation and control systems, the GE PCI‑5565 (PCI‑5565 Reflective Memory Board) provides direct physical/electrical execution. The module synchronizes a localized shared memory pool across multi-node networks using a dedicated fiber-optic hardware layer operating at 2.125 Gbps. By using direct hardware-driven memory replication, the card bypasses standard operating system network stacks to execute memory writes between nodes within a deterministic 1 microsecond interval.

Hardware Specifications

Deterministic Network Data Replication and Firmware Synchronization

The network transceiver subsystem uses a dedicated 2.125 Gbps serial optical link to achieve low latency transfers without processor intervention. When local software updates the localized SDRAM array, the physical onboard logic packages the data into memory windows and transmits it instantly across the fiber-optic ring or star topology. The architecture ensures strict firmware flash compatibility across standard operating systems, including VxWorks, Linux, and Windows, stabilizing the local I/O density scaling framework during high bus loads. This automated replication protocol eliminates packet collisions, rendering system data distribution independent of host backplane bus communication velocity.

Frequently Asked Questions

Q: How does the hardware maintain memory consistency during optical transmission errors?

A: The onboard network controller uses hardware-level Cyclical Redundancy Checking (CRC) on every data packet received via the fiber-optic link. If the receiver logic detects a corrupted packet, it discards the corrupted frame and relies on redundant transmission and automatic hub bypass mechanics to ensure data consistency across the remaining operational nodes.

Q: Can the board reside in a system alongside standard PCI cards without affecting execution determinism?

A: Yes, the board utilizes its independent 32-bit, 33 MHz PCI bus interface to arbitrate memory mapping locally. While host processor bus utilization affects local transfer rates up to 132 MB/s, the external reflective memory network latency remains locked at 1 microsecond per node, entirely independent of peripheral PCI card traffic.

Field Installation Guidelines

• Fiber-Optic Cable Bend Radius Constraints: Ensure that single-mode and multi-mode fiber patch cables maintain a minimum physical bend radius of 30 mm during routing. Sharp bends alter the internal light reflection angle, resulting in optical attenuation and intermittent network drops.
• Chassis ESD Grounding Verification: Prior to sliding the card into the standard PCI bus slot, verify that the host chassis has a low-impedance connection to the central panel earth ground. Electrostatic discharge can corrupt volatile data stored within the high-speed 128 MB or 256 MB SDRAM array.
• Optical Transceiver Cleaning Requirements: Clean all optical fiber end-faces with an approved isopropyl alcohol wipe prior to insertion into the board transceivers. Particulate contamination on the optical interface limits transmission distances and increases the rate of CRC packet retransmissions.
• Passive Airflow Clearances: Maintain unobstructed clearance above and below the card surface within the computer or rack enclosure. The high-speed serialization logic demands continuous passive airflow to maintain thermal component stability within the standard 0-60 deg C operating threshold.