1. Motorola MVME2604 | Authentic Legacy Control Computer

2. Unboxing & Physical Snapshot

• Model & Brand: Motorola MVME2604
• Product Type: 6U VMEbus single-board computer (SBC) using the Motorola MPC604 PowerPC processor architecture. The MVME2604 series was designed for industrial embedded computing, instrumentation, telecommunications, and long-service control applications. It supports ECC DRAM memory modules, PCI-based expansion, VMEbus communication, Ethernet, SCSI, and PMC expansion.
• Approximate Physical Dimensions (W × H × D):
  • Standard 6U VME single-slot format
  • Base board: approximately 233 × 160 mm
  • With front panel and connectors: approximately 262 × 188 mm
• Estimated Shipping Weight: Approximately 1.0-1.5 kg including ESD shielding, protective foam, and transport packaging.
• What’s in the Box:
  • Motorola MVME2604 VME single-board computer
  • Front panel assembly with injector/ejector handles
  • MPC604 PowerPC processor assembly
  • RAM200 memory mezzanine (configuration dependent)
  • Flash memory devices
  • VMEbus connectors
  • Anti-static (ESD) shielding bag
  • Conductive foam insert
  • Documentation package when supplied

3. Product Introduction

The Motorola MVME2604 installs into a 6U VME chassis backplane and acts as the processing controller within a modular embedded computing rack. Its VMEbus interface, PCI architecture, memory expansion design, and peripheral support allow it to remain integrated with established industrial platforms where software validation and hardware qualification are tightly controlled (which is critical for legacy production systems that cannot tolerate unplanned architecture changes).

This board belongs to the MVME2600 family, using the MPC604 PowerPC processor and supporting ECC DRAM modules from the RAM200 series. Replacement work requires more than matching the model label. Confirm the processor variant, installed memory module, transition module, firmware revision, and application software environment before returning the asset to service.

4. Core Technical Specifications

Parameter	Value
Manufacturer	Motorola
Model	MVME2604
Product Family	MVME2600 Series
Product Type	VMEbus Single Board Computer
Form Factor	6U VME
Processor	Motorola MPC604 PowerPC
Processor Speed	Configuration dependent
ECC DRAM	16 MB to 256 MB through RAM200 memory module
L2 Cache	Optional 256 KB onboard cache
Flash Memory	Base board flash sockets; additional flash through RAM200 module
NVRAM	8 KB battery-backed NVRAM with RTC
VME Interface	VMEbus system controller functions
VME Transfer Modes	A16/A24/A32, D8/D16/D32/D64 block transfer
PCI Interface	Integrated PCI local bus architecture
PMC Expansion	PCI Mezzanine Card support
Ethernet Interface	Supported through transition module configurations
SCSI Interface	Fast SCSI-2 support through compatible transition module
Serial Interfaces	Multiple asynchronous and synchronous serial channels via transition module
Parallel Interface	Supported through compatible transition module
Firmware	Motorola debug monitor firmware
Power Input	VME backplane DC supply
Typical Power Consumption	Approximately 30 W class depending on configuration
+5V Requirement	Approximately 6 A typical for MPC604 configuration
Cooling Method	Forced-air VME chassis cooling
Operating Temperature	0°C to +55°C with required airflow
Storage Temperature	-40°C to +85°C

Motorola MVME2604

5. ? Global Compliance & Industry Certifications

Expected regulatory considerations for the Motorola MVME2604 include:

• CE Mark: May apply when installed within a compliant equipment enclosure meeting EMC requirements.
• UL/cUL Listed: Usually evaluated at the complete VME chassis or finished equipment level rather than as an individual processor board.
• RoHS Compliance: Original production predates current environmental requirements; verify the specific manufacturing revision.
• ATEX / IECEx: Not a standalone hazardous-area certified product. Hazardous location use requires evaluation of the complete certified system.
• Marine Approvals (DNV GL): Applicable only when integrated into approved marine automation equipment.

For audit control, retain board revision, serial number, firmware information, memory configuration, and installed transition hardware records. A similar-looking VME board without matching configuration history may create commissioning issues.

Verify specific lot certifications with OEM.

6. ? Long-Term Storage & Asset Preservation Guide

Keep the MVME2604 inside its original anti-static shielding bag during storage. Protect the VME edge connector contacts, memory module interface, and exposed semiconductor packages from electrostatic discharge and contamination.

Maintain warehouse humidity below 60% RH. Older VME assemblies contain socketed components and battery-backed devices where prolonged moisture exposure can accelerate contact oxidation.

Inspect stored units every 12-24 months. Check the RAM200 module seating, battery-backed NVRAM condition, connector plating, front panel hardware, and PCB surface. Before installation, perform a controlled power-up test and verify firmware compatibility with the target system.

7. Physical Installation Prerequisites

• Install the MVME2604 only in a compatible 6U VME chassis.
• Confirm the backplane supports required VMEbus addressing and transfer modes.
• Provide forced-air cooling across the card cage.
• Maintain unobstructed airflow around the board edges.
• Leave adequate clearance around adjacent VME modules to prevent thermal accumulation.
• Inspect VME connector contacts before insertion.
• Confirm chassis grounding and protective earth bonding.
• Verify power rails:
  • +5 VDC
  • +12 VDC
  • -12 VDC
• Confirm compatible transition modules for Ethernet, SCSI, and serial connections.
• Verify installed memory, firmware, and application software before commissioning.
  

  Motorola MVME2604

8. Buyer’s FAQ (Logistics & Compliance Focus)

Q: What HS Tariff Code is commonly used for a Motorola MVME2604 shipment?

A: VME single-board computers are commonly reviewed under electronic computing assembly classifications, often within HS 8471 or related electronic board categories. Final classification depends on customs interpretation and the declared function of the imported item.

Q: Why does Country of Origin (COO) documentation matter for this VME processor board?

A: COO records support customs clearance, asset tracking, and maintenance history. For refurbished MVME2604 units, retain manufacturer labels, inspection records, refurbishment details, and shipment origin information.

Q: Should the MVME2604 be shipped with transport insurance?

A: Recommended. The board contains PowerPC processor circuitry, memory modules, VME connectors, and aging electronic components. Physical shock or moisture exposure may result in intermittent failures during system startup.

Q: Does the MVME2604 include the latest firmware pre-loaded?

A: Firmware depends on the installed ROM contents and previous service history. The board may contain Motorola monitor firmware, but application software, operating system images, and customer-specific configuration files must be verified before replacement.