Motorola IPMC7616E-002 MVME761 Rear I/O PMC Module

Description

Key Technical Specifications

Motorola’s MVME5100 documentation identifies IPMC7616E-002 specifically as a “Multifunction rear I/O PMC module” with 8-bit SCSI, one parallel port, two asynchronous serial ports, and two synchronous/asynchronous serial ports.

The IPMC7616E/7126E installation manual explains that these modules are optional I/O modules installed on applicable MVME5100, MVME5500, and MVME6100 Single Board Computers and use the PowerPlus II architecture.

Product Introduction

The Motorola IPMC7616E-002 is a multifunction rear-I/O PMC module designed for compatible Motorola MVME single-board computers. It provides the host SBC with Ultra-Wide SCSI, one parallel interface, two asynchronous serial interfaces, and two synchronous/asynchronous serial interfaces.

This module is particularly relevant when maintaining legacy MVME5100/MVME5500/MVME6100 embedded systems where the original rear-I/O architecture must remain intact. Do not confuse IPMC7616E-002 with the MVME7616E-001 or -011 transition modules; those are separate rear transition/interface assemblies.

IPMC7616E-002

IPMC7616E-002

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation — 5–10 minutes

⚠️ Safety First: Power down the host VME system according to the equipment manufacturer’s maintenance procedure. Do not treat a conventional VME/PMC installation as hot-swappable unless the complete system documentation explicitly specifies live replacement.

Tools Required:

• ESD wrist strap
• Appropriate screwdriver
• Digital multimeter
• Camera or smartphone
• Magnification/light for connector inspection
• Wire labels where external cabling is involved

Data Backup:

1. Record the host SBC model and complete assembly number.
2. Confirm whether the host is an MVME5100, MVME5500, MVME6100, or another supported platform.
3. Photograph the existing IPMC7616E-002.
4. Record all connected rear-I/O cables.
5. Identify the associated MVME761 transition module, if installed.
6. Record the operating system and firmware/boot-monitor configuration where applicable.
7. Photograph jumper or configuration settings before removal.

⚠️ Do not substitute an IPMC7126E-002 simply because its model number looks similar. Motorola documentation identifies different serial-port and physical-interface arrangements between the IPMC712 and IPMC761 variants.

Stage 2: Removing the Old Module — 5 minutes

1. Shut down the operating system cleanly where possible.
2. Remove system power.
3. Confirm the VME chassis is de-energized.
4. Apply ESD protection.
5. Disconnect external rear-I/O cabling carefully.
6. Release the PMC retaining hardware.
7. Remove the IPMC7616E-002 without applying lateral force to the connector.
8. Inspect the PMC connector and host board for bent pins, contamination, or mechanical damage.

⚠️ Do not pull on SCSI or multi-pin cables by the cable itself. Legacy SCSI connectors can suffer mechanical damage when excessive force is applied.

Stage 3: Installing the New Module — 5–10 minutes

1. Compare the replacement with the original .
2. Verify the connector layout and PCB revision.
3. Inspect the PMC mating connector.
4. Align the module carefully with the host-board connector.
5. Seat the module evenly without forcing it.
6. Secure the PMC retaining hardware.
7. Reconnect the rear-I/O cabling.
8. Verify that each cable returns to its original interface.

Self-Checklist:

• verified
• Host SBC model verified
• PMC connector inspected
• Module fully seated
• Retaining hardware secured
• SCSI cable restored
• Parallel cable restored
• Serial cables restored
• Transition module compatibility confirmed

Stage 4: Power-On & Testing — 10–15 minutes

1. Perform a final connector inspection.
2. Energize the VME chassis.
3. Observe the host SBC boot sequence.
4. Confirm that the system reaches the expected firmware/boot-monitor stage.
5. Check the operating system’s detection of the associated I/O interfaces.
6. Test the asynchronous serial ports individually.
7. Test the synchronous/asynchronous serial interfaces according to the application configuration.
8. Verify the parallel interface if used.
9. Verify SCSI communication if the application uses the interface.
10. Run the application-level diagnostics.

Motorola documentation provides a dedicated IPMC7126E/7616E I/O Module Installation and Use manual covering installation, programming, connector pin assignments, and specifications. The document number is 6806800A45B.

⚠️ If the host boots but an interface disappears, do not immediately assume the IPMC board is defective. Check the host SBC variant, rear transition module, cable type, connector mapping, device-tree/OS configuration, and interface-specific software configuration first.

Frequently Asked Questions (FAQ)

Q1. What is ola ?

It is a multifunction rear-I/O PMC module for compatible Motorola MVME single-board computers. Its documented interfaces include Ultra-Wide/8-bit SCSI, one parallel port, two asynchronous serial ports, and two synchronous/asynchronous serial ports.

Is a CPU board?

No. This distinction matters during procurement. The , while the MVME5100/MVME5500/MVME6100 board provides the main SBC processing platform.

Q3. Which Motorola MVMEuse ?

Motorola documentation identifies the /7126E modules as optional I/O modules for variants of the , MVME5500, and MVME6100 SBC families. The documentation specifsts under the MVME761 Compatible I/O section.

Is interchangeable with MVME7616E-001?

No. They are different assemblies with different functions. is the rear-I/O PMC module, while MVME7616E-001 is a transition module providing external connectors for the associated I/O interfaces.

Q5. What is the differeen and IPMC7126E-002?

Both belong to the same general PowerPlus II rear-I/O family, but their interfaces differ. The documentation lists IPMC7126E-002 with Ultra-Wide SCSI, one parallel port, three asynchronous serial ports, and one synchronous/asynchronous serial port. instead provides two asynchronous and two synchronous/asynchronous serial ports.

Can be hot-swapped?

Treat it as a power-off replacement unless the complete MVME chassis and host documentation explicitly authorizes live PMC replacement. A standard VME/PMC maintenance procedure should include controlled shutdown and ESD protection.

Q7. Is ola obsolete?

It is a legacy Motorola/Emerson embedded-computing component, and current availability is primarily through legacy inventory and specialist suppliers. A current datasheet still documents the part number as an MVME761-compatible I/O option.

For procurement, specify the complete number and request a photograph of the actual board. Do not accept an “IPMC761” substitute without checking the suffix, connector configuration, and host SBC compatibility.