单CPU板包含一个Pentium或AMD-K6高性能微处理器，作为标准PC/AT运行，执行PC/AT类型的开机自检，然后启动MS-DOS、Windows 3.11、Windows 95、Windows NT或任何其他兼容PC/AT的操作系统。

VMIVME-7591还提供了超越典型IBM PC/AT兼容CPU的功能，包括通用定时器、可编程看门狗定时器、可引导闪存盘系统和非易失性电池支持SRAM。这些特性使该设备成为嵌入式应用的理想选择。

VMIVME-5531S-000

Features:
The maximum transmission rate is 1 MB/s
Plug and play operations
Complete electrical isolation between VME systems
VMIVME-5531L is a replacement for the appearance, accessories, and functionality of VMIVME-5530

The General Electric Fanuc/VMIC VMIVME-5531 VMEbus fiber optic repeater link is a high-performance and easy-to-use method of connecting two or more VME systems together through optical cables. The repeater link is a collection of two boards that allows the VME slave I/O board located in one VME chassis to be controlled by the VME master I/O board located in another chassis. Generally speaking, the VME chassis where the VME host is located is called the main chassis, while the VME slave board is located in the auxiliary chassis. The dual board set configuration allows one board to be designated for the main chassis, while the other board is designated for the auxiliary chassis. By using multiple relay links in a star configuration, the primary VME chassis can communicate with several secondary chassis.

This link is software transparent. Any VME host in the main chassis can access (read or write) any slave board in the auxiliary chassis. Only non interrupt slave boards are allowed in the auxiliary chassis. When the VME host (usually the CPU board) addresses any board in the auxiliary chassis, the link between the main chassis and the auxiliary chassis is automatically established.

Whenever the main chassis in the main chassis issues a VME read/write cycle, it will be repeated to the auxiliary chassis. If any slave board in the auxiliary chassis responds to this address, data transfer (read or write) will occur between the chassis, and a Data Transfer Ack (DTACK) will be generated to the main chassis (in the main chassis) to complete this cycle.

A chain consists of two boards (VMIVME-5531M and VMIVME-5531S) and two cables, allowing the VME system to scale beyond a single chassis.

The link reset switch located on the front panel of VMIVME-5531M allows users to interrupt SYSRESET in the auxiliary chassis without resetting the main chassis (or additional auxiliary chassis in multiple link configurations). When SYSRESET is set in the main chassis, it will repeat to all auxiliary chassis.

Both VMIVME-5531M and VMIVME-5531S have a dual color LED to indicate the status of the link. When the local receiver and remote transmitter achieve phase locking and frame synchronization, the LED is green. The red LED indicates that the link is not ready, which may be due to cable damage or wiring errors, remote chassis not powered on, or link damage. During the reset process, the LED will temporarily turn red.

A single CPU board contains a Pentium or AMD-K6 high-performance microprocessor that runs as a standard PC/AT, performs PC/AT type power on self-test, and then starts MS-DOS, Windows 3.11, Windows 95, Windows NT, or any other PC/AT compatible operating system.

VMIVME-7591 also offers features beyond typical IBM PC/AT compatible CPUs, including universal timers, programmable watchdog timers, bootable flash drive systems, and non-volatile battery support for SRAM. These features make the device an ideal choice for embedded applications.