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PCI Express GiGA CHNNEL
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.

rohs    
Patent acquisition


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 2.045.0GT/s
Communication Format

Optical fiber: 8.5Gbps1ch
Transfer rate: 8.5Gbps
Transfer mode: Multi Mode
Internodal distance(MAX): 150m *1
Laser format: 850nm VCSEL
Laser safety standards: Class 1
Communication ConnectorCable
Fiber diameter: 50m
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
167.65mm111.15mm
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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