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8.5Gbps High-speed Optical Communication Board

APX-781

GiGA CHANNEL provides large-capacity-data communication between equipments.
It connects in loop the shared memory on the GiGA CHANNEL products which equipped with each nodes using the optical fiber cable, then it enables transfer the frame sequentially with communication data and high-speed data transfer accross it .
It can predict the effective transfer rate without occur the collisions.
Since it supports entire protocol processing completely in hardwar which required for communication, the software performance is reduced.

Patent acquisition

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The specification and externals of product are for the improvement and might be changed without previous notice

Features

●High noise immunity optical fiber connection between boards
●PCI-Express 2.0 Gen2(5.0Gbps)×4 lane
●Up to 8.5Gbps high-speed data communication
●512MByte shared memory
●Up to 64 boards connectivity
●Up to 150m extensibility of internodal distance *1
●Supports entire protocol processing completely in hardware
●Ensure reliability for communication data by Hardware CRC check function and 　Hardware retry function
●Predictable communication delay
●Identify disconnected area of cable by LED or software
●Memory transfer with built-in DMA controller without passing through the CPU
●Built-in doorbell function to interrupt request for other modules
●2KByte share register for low-capacity data transfer or status transfer
●All of the control is done by single-chip FPGA
●Simple data sharing between different OS or different forms of system
●Provided Windows/Linux driver

*1 Maximum extensibility may differ from cable specification

Specification

Model	APX-781
Host I/F	PCI Express 2.0×4（5.0GT/s）
Communication Format	Optical fiber: 8.5Gbps×1ch Transfer rate: 8.5Gbps Transfer mode: Multi Mode Internodal distance(MAX): 150m *1 Laser format: 850nm VCSEL Laser safety standards: Class 1
Communication Connector＆Cable	Fiber diameter: 50μm Connector format: LC connector
Communication Protocol	Original protocol
Transfer Rate (Theoretical value）	850MByte/s(writing)
Data Transfer Delay	450ns/Node （Receiving → Transmitting ） Except cable delay
Connection Capabilities	64node(MAX)
Communication Controller (with FPGA)	AVAL DATA original protocol
Memory	512 Mbyte
Dimensions	167.65mm×111.15mm
Power Requirements	+12V: 1.2A
Environment *2	Operating temperature: 0℃ to 50℃ Humidity: 35% to 80%(non-condensing)
Environmental Consideration	RoHS
OS	Windows/Linux

*1: Maximum internodal distance differ according to the optical cable to be used
*2: Storage environment 　
　　 Temperature: -20℃ to 70℃ , Humidity 35% to 80% (non-condensing)

Connectable Products

APX-781 can be connected with following product.
It can easily share memory between products which in different plat forms or different systems.

On-board card product: AGM-781

Other Document

Block Diagram

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