The MVME721 is a
Motorola Rear Transition Module (RTM), often paired with single-board computers (SBCs) like the MVME3100, designed to bring VMEbus signals (especially Ethernet & Serial) out to standard RJ-45 connectors on the backplane’s transition area for easier access and connectivity in industrial VME systems, acting as a bridge for data from the processor to the outside world via RJ45 ports.
Key Functions & Characteristics:
- Rear Transition Module (RTM): It’s not a standalone computer but a support board that mounts to the VME chassis’s P2 connector.
- Connector Mapping: Routes signals from the VME P2 connector to standard interfaces, primarily RJ45s for Ethernet.
- Connectivity: Offers multiple 10/100/1000BaseTX (Gigabit Ethernet) ports and sometimes serial interfaces, making network/serial connections simple with standard cables.
- Compatibility: Used with various VMEbus Single Board Computers (SBCs) like the MVME3100 series, helping modernize older systems.
- Purpose: Provides a convenient way to access high-speed I/O from high-performance PowerPC-based VME cards without complex wiring.
In essence, think of the MVME721 as an I/O adapter for VME systems, allowing modern Ethernet and serial devices to plug into the back of the chassis easily.