Manuals / Motorola / Computer Equipment / Computer Hardware

Motorola MVME956AC, MVME956UM2 user manual Physical Description, Backplane Power

Models: MVME956AC MVME956UM2

1 60
Download 60 pages 46.39 Kb
Page 30
Image 30

12-Slot VMEbus Backplane

4

Overview

This chapter provides a physical and electrical description of the 12-slot VME bus backplane used in the MVME956AC chassis. Refer to Chapter 1 for features and specifications of the backplane. Refer to Chapter 6 for removal and replacement procedures.

Physical Description

The backplane was designed to accommodate VME modules and disk drive units. It accommodates up to 12 double-high user VME modules containing both P1 and P2 connectors. The backplane is fully assembled with connectors and terminators. It contains:

❏12 connectors on the top row to receive connector P1 of the VME modules

❏12 connectors on the bottom row to receive VME module expansion connector P2

Backplane Power

VME modules that plug into the backplane require voltages of +5 Vdc, +12 Vdc, and -12 Vdc for operation. The MVME956AC chassis contains a power supply and wiring that provide these voltages to the backplane.

The power connectors characteristics and the number and arrangement of their pins are summarized in Figure 4-1 on page 4-4.

4-1

Page 29 Page 31
Page 30
Image 30
Motorola MVME956AC, MVME956UM2 user manual Physical Description, Backplane Power
Page 29 Page 31

MVME956AC, MVME956UM2 specifications

The Motorola MVME956UM2 and MVME956AC are advanced embedded computing platforms designed for high-performance industrial and military applications. These ruggedized computing solutions cater to various sectors, including telecommunications, aerospace, and defense, providing a reliable foundation for real-time processing and data acquisition tasks.

One of the distinguishing features of the MVME956UM2 and MVME956AC is their robust architecture, based on the PowerPC processor. The MVME956UM2 generally offers a PowerPC 750 microprocessor, operating at clock speeds of up to 600 MHz, while the MVME956AC may leverage a higher performance variant for enhanced computing capabilities. This processor architecture enables efficient execution of complex applications and multi-threading operations, making it suitable for demanding environments.

Both models support advanced memory configurations, accommodating up to 512 MB of RAM and several megabytes of non-volatile flash memory. This flexibility allows developers to design applications with substantial data handling requirements, such as real-time analytics or extensive data logging.

Another notable aspect of the MVME956 series is its modular design, which facilitates easy integration with various I/O modules and communication interfaces. The board features multiple Ethernet ports supporting both 10/100Base-T and Gigabit Ethernet, enabling high-speed data transfer across networks. Additionally, with support for PCI, USB, and other serial communication standards, developers can create customized solutions tailored for specific application needs.

Durability is one of the key characteristics of the MVME956 models. They are built to withstand extreme environmental conditions, including a wide temperature range, vibration, and shock. This makes them ideal for use in aircraft, naval vessels, and other challenging settings where reliability is paramount.

The MVME956AC also offers enhanced graphics support, with the ability to drive advanced visual displays for monitoring and control tasks. This feature is particularly advantageous in situations where real-time visual feedback is critical, such as in control rooms or manned military operations.

In summary, the Motorola MVME956UM2 and MVME956AC represent powerful, versatile computing platforms tailored for demanding applications. With their advanced processing capabilities, expansive memory, rugged design, and extensive I/O options, these embedded systems are well-suited for a variety of industrial and defense environments, making them a preferred choice among engineering professionals.