Xycom XVME-976 是一款 VME 总线转接模块，主要用于扩展 VMEbus 系统的功能，支持连接 PC/104 和 PMC（PCI Mezzanine Card）扩展模块，适用于工业自动化、测试测量等领域。

核心功能

1. 扩展模块支持
   • PC/104 扩展：提供 1 或 2 个 PC/104 扩展站点，兼容标准 PC/104 模块（如以太网、SCSI、串行、并行等），支持 A 型（带前面板）和 B 型（通用型）模块。
   • PMC 扩展：提供 1 或 2 个 PMC 站点，支持 IEEE P1386 标准，允许扩展 PCI 功能（如高速数据采集、通信接口等）。
   • 可选模块：支持 ATM、FDDI、SCSI 等扩展（需第三方模块）。
2. 电气特性
   • 电源管理：板载直流稳压器，为 PMC 站点提供 3.3V 电压。
   • 信号缓冲：PC/104 信号（除数据线外）均经过缓冲，确保信号完整性。
   • 跳线配置：用户可通过跳线自定义信号路由，适应不同扩展需求。
3. 机械设计
   • 6U VME 插槽：符合标准 VMEbus 卡笼尺寸，支持热插拔。

   • 插针连接器：采用高可靠性插针和插座方案，适应工业环境振动和冲击。

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技术参数

• 环境适应性：
  • 工作温度：0°C 至 50°C（32°F 至 122°F）
  • 存储温度：-40°C 至 60°C（-40°F 至 140°F）
  • 湿度：20% 至 80% RH（非凝结）
  • 振动：5Hz 至 2000Hz，0.15mm 峰峰值位移
  • 冲击：30g 峰值加速度（11ms 持续时间）
• 兼容性：
  • 支持 Xycom VME 处理器模块（如 XVME-653、XVME-654、XVME-655）。
  • PMC 站点兼容 2.0 规范（IEEE P1386）。

  • PC/104 站点符合 ISA 标准。

  • 

典型应用场景

1. 工业自动化
   • 作为 VMEbus 系统的 I/O 扩展枢纽，连接 PC/104 模块实现以太网通信、数据存储或传感器接口。
   • 通过 PMC 模块扩展高速 ADC/DAC，用于实时控制或信号处理。
2. 测试与测量
   • 在数据采集系统中，集成 PC/104 模块实现多通道同步采样，或通过 PMC 模块扩展高速缓存。
   • 支持 SCSI 接口连接外部存储设备，满足大数据记录需求。

3. 军事与航空航天

   • 模块化设计便于系统升级，适应高可靠性要求的嵌入式应用。

   • 支持冗余配置，提高系统容错能力。

   
   

Xycom XVME-976 is a VME bus adapter module mainly used to expand the functionality of VMEbus systems. It supports connecting PC/104 and PMC (PCI Mezzanine Card) expansion modules and is suitable for industrial automation, testing and measurement, and other fields.

core functionality

Extension module support

PC/104 Expansion: Provides 1 or 2 PC/104 expansion sites, compatible with standard PC/104 modules such as Ethernet, SCSI, serial, parallel, etc., supporting A-type (with front panel) and B-type (universal) modules.

PMC Expansion: Provides 1 or 2 PMC sites, supports IEEE P1386 standard, and allows for the expansion of PCI functionality (such as high-speed data acquisition, communication interfaces, etc.).

Optional modules: Supports ATM, FDDI, SCSI and other extensions (requires third-party modules).

Electrical Characteristics

Power management: Onboard DC regulator provides 3.3V voltage to PMC sites.

Signal buffering: All PC/104 signals (except for data lines) are buffered to ensure signal integrity.

Jumper configuration: Users can customize signal routing through jumpers to meet different expansion needs.

Mechanical Design

6U VME slot: conforms to the standard VMEbus card cage size and supports hot swapping.

Pin connector: Adopting high reliability pin and socket solutions, suitable for industrial environment vibration and impact.

Technical Specifications

Environmental adaptability:

Working temperature: 0 ° C to 50 ° C (32 ° F to 122 ° F)

Storage temperature: -40 ° C to 60 ° C (-40 ° F to 140 ° F)

Humidity: 20% to 80% RH (non condensing)

Vibration: 5Hz to 2000Hz, 0.15mm peak to peak displacement

Impact: 30g peak acceleration (11ms duration)

Compatibility:

Support Xycom VME processor modules (such as XVME-653, XVME-654, XVME-655).

PMC site is compatible with the 2.0 specification (IEEE P1386).

The PC/104 site complies with ISA standards.

Typical application scenarios

Industrial Automation

As the I/O expansion hub of the VMEbus system, it connects PC/104 modules to achieve Ethernet communication, data storage, or sensor interfaces.

Expand high-speed ADC/DAC through PMC module for real-time control or signal processing.

test and measurement

In the data acquisition system, the PC/104 module is integrated to achieve multi-channel synchronous sampling, or the PMC module is used to expand the high-speed cache.

Support SCSI interface connection to external storage devices to meet the needs of big data recording.

Military and Aerospace

Modular design facilitates system upgrades and adapts to embedded applications with high reliability requirements.

Support redundant configuration to improve system fault tolerance.