MOTOROLA MVME712A/AM

• Cooling Requirements:
  • Requires forced-air cooling
  • Minimum airflow: 5 CFM (cubic feet per minute)
  • Validated under high-temperature and high-density load conditions
• EMI/RFI Compliance: Meets FCC Class A emission standards when installed in a properly grounded metal enclosure with shielded cables and secured mounting hardware

Key Features

• Serial Communication Ports:
  • Four EIA-232-D compliant serial ports via DB-25 connectors
  • Each port configurable as DTE (Data Terminal Equipment) or DCE (Data Communications Equipment) using onboard jumpers
  • Supports asynchronous communication for modems, terminals, PLCs, and instrumentation
• Parallel Interface:
  • One Centronics-style 50-pin high-density connector for IEEE 1284-compliant parallel printer interface
  • Enables connection to legacy printers and industrial peripherals
• SCSI Interface:
  • One 50-pin high-density SCSI connector (Centronics-style)
  • Supports SCSI-1 and SCSI-2 peripheral devices including hard drives, tape drives, and scanners
  • Onboard socketed termination resistors for flexible bus configuration
  • Termination power (TERMPWR) provided and fused at 1 A via P2 adapter board
• Ethernet Connectivity:
  • One 10/100 Mbps Ethernet port (RJ-45) supporting standard networking protocols
  • Facilitates integration into local area networks for remote monitoring and control
• Internal Modem Support:
  • Serial Port 2 routed to an internal modem connector for dial-up or remote access applications
  • Ideal for systems requiring out-of-band management or backup communication
• P2 Adapter Board Integration:
  • Requires use of a P2 adapter board to route signals between the VME backplane and the MVME712A/AM
  • Ensures proper signal integrity, power distribution, and grounding
  • Breaks out critical I/O lines including SCSI, serial, parallel, and Ethernet
• Status Indicators:
  • Green LED: Indicates presence of termination power (TERMPWR)
  • Yellow LED: Indicates transceiver power status for communication interfaces
• Electromagnetic Protection:
  • Front panel includes EMI/RFI shielding to minimize interference
  • Electrostatic discharge (ESD) protection on all I/O lines
  • Designed for reliable operation in electrically noisy industrial environments
• Modular and Serviceable Design:
  • Field-replaceable components and connectors
  • Supports long-term deployment in mission-critical systems

Application Areas

• Industrial automation and process control systems requiring multiple serial, parallel, and SCSI interfaces
• Embedded computing platforms in manufacturing, energy, and transportation sectors
• Legacy military and aerospace systems utilizing VMEbus infrastructure
• Data acquisition and telemetry systems interfacing with sensors, modems, and storage devices
• Test and measurement equipment needing reliable, multi-protocol I/O connectivity
• Communication gateways and protocol converters in distributed control networks
• Medical and scientific instrumentation requiring stable and standardized peripheral interfaces

Manufacturer and Support

The MVME712A/AM was developed by Motorola’s Embedded Communications division, which evolved into Force Computers, then GE Intelligent Platforms, and later became part of Emerson Network Power and subsequently Abaco Systems. As a legacy product, it is no longer in active production but remains in service within existing embedded systems. Technical documentation, spare units, and integration guides are available through industrial automation suppliers, embedded systems distributors, and archived manufacturer resources. Due to its rugged design, proven reliability, and compatibility with long-deployed VME architectures, the MVME712A/AM continues to be used in applications where system longevity, interface flexibility, and environmental resilience are essential.