【Product Overview】
The Fiber Reflective Memory Interface Board is primarily used for high-speed data transmission between devices. Multiple interface boards can be networked to form a real-time fiber reflective memory network.
A real-time fiber reflective memory network consists of fiber interface boards installed in computers and connected via fiber optic cables to form a ring network. The onboard memory of each node's fiber interface board contains a copy of shared data from other nodes. Logically, all nodes in the network share the same memory, enabling data to be written at one point and simultaneously updated at multiple points, achieving high-speed data transmission and sharing. Compared to traditional networking technologies, it not only offers strict transmission determinism and reliability but also features high data transfer speeds, simple communication protocols, low host load, and strong adaptability to both hardware and software platforms.
 
【Fiber Port Definitions and Onboard Indicators】
 
As shown in the figure above, TX is the data transmission port; RX is the data reception port.
 
As shown in the figure above, the indicators are: RX: Data reception status indicator; TX: Data transmission status indicator; TRAN: PCI bus data transmission status indicator; LOS: Optical link failure indicator.
【Fiber Reflective Memory Network Connection Methods】
Self-loopback test mode
As shown in the figure below, connect the TX and RX ends of the fiber transceiver module on the fiber reflective memory interface board using a single fiber optic cable to complete the network setup.
 
Multi-board ring network mode
As shown in the figure below, a fiber optic network is formed by connecting the TX and RX ends of multiple fiber reflective memory interface boards using multiple single fiber optic cables. The connection method is as follows: The transmit port of Node1 board connects to the receive port of Node2 board, the transmit port of Node2 board connects to the receive port of Node3 board, and so on, with the transmit port of Node6 board looping back to the receive port of Node1 board.
 
Using HUB mode
Directly connect the fiber board and the HUB using a dual-fiber crossover cable, as shown in the figure below.
 
【Driver Installation】
Locate the driver for the fiber reflective memory interface board in the "Driver" directory of the product's accompanying CD. Double-click the setup.exe file in the driver installation directory to install.
After installation, verify that the board driver is correctly installed through the "Device Manager" of the computer system. The fiber reflective memory interface board device should appear in the device list as shown in the figure below.
 
【Application Programming Interface (Windows & VC++)】
Add library files to your VC++ project
The library files are located in the installation directory specified during driver installation. The library files to be added are: Fiber2125API.dll, Fiber2125API.lib, Fiber2125API.h.
Driver call steps
Step1: Open the board by calling the Open(0) function.
Step2: Read and write data on the board. Commonly used read/write functions include FIB2125_Write32 and FIB2125_Read32 for reading and writing 32-bit data. The functions require specifying the address in the reflective memory to read/write data, the number of data units (in bytes), and the starting address of the data to be written/read. For details, refer to the user manual. Functions such as FIB2125_WriteDouble, FIB2125_ReadDouble, FIB2125_WriteFloat, FIB2125_ReadFloat, FIB2125_Write16, FIB2125_Read16, FIB2125_Write8, and FIB2125_Read8 operate similarly and can be used to read/write double-precision, floating-point, 16-bit, and 8-bit data, respectively. For details, refer to the user manual.
Call example:
DWORD dwData1[2];
dwData[0] = 0x01;
dwData[1] = 0x02;
/*Write the two DWORD data 0x01 and 0x02 sequentially to the fiber reflective memory starting at address 0*/
FIB2125_Write32(0,  0 ,  dwData,  2);
/*Read two DWORD-type data sequentially from the fiber reflective memory starting at address 0 and store them in dwData1[0] and dwData1[1]*/
FIB2125_Read32(0,  0,  dwData1,  2);
Step3: Close the board by calling the FIB2125_Close(0) function to complete usage.
【Test Program Usage】
The test program is located in the Windows Start Menu => All Programs => Fiber Card => Test Program, as shown below.
 
Before starting the test, connect the fiber optic cable according to one of the three modes described in 【Fiber Reflective Memory Network Connection Methods】.
The test allows setting the range of random numbers to generate, data length, read/write address range, etc. The interface can display transmitted and received data frames and the bit error rate.